./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:17:04,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:17:04,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:17:04,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:17:04,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:17:04,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:17:04,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:17:04,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:17:04,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:17:04,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:17:04,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:17:04,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:17:04,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:17:04,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:17:04,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:17:04,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:17:04,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:17:04,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:17:04,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:17:04,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:17:04,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:17:04,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:17:04,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:17:04,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:17:04,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:17:04,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:17:04,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:17:04,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:17:04,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:17:04,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:17:04,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:17:04,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:17:04,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:17:04,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:17:04,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:17:04,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:17:04,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:17:04,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:17:04,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:17:04,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:17:04,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:17:04,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 12:17:04,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:17:04,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:17:04,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:17:04,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:17:04,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:17:04,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:17:04,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:17:04,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:17:04,211 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:17:04,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:17:04,213 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:17:04,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:17:04,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:17:04,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:17:04,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:17:04,214 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:17:04,214 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:17:04,214 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:17:04,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:17:04,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:17:04,215 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:17:04,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:17:04,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:17:04,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:17:04,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:17:04,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:17:04,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:17:04,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:17:04,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:17:04,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:17:04,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 [2022-11-16 12:17:04,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:17:04,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:17:04,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:17:04,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:17:04,663 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:17:04,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-16 12:17:04,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/2196afd13/75f7722278bc47238e426b847885115e/FLAGdb16fb1f1 [2022-11-16 12:17:05,435 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:17:05,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-16 12:17:05,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/2196afd13/75f7722278bc47238e426b847885115e/FLAGdb16fb1f1 [2022-11-16 12:17:05,750 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/2196afd13/75f7722278bc47238e426b847885115e [2022-11-16 12:17:05,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:17:05,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:17:05,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:05,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:17:05,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:17:05,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:05" (1/1) ... [2022-11-16 12:17:05,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1157a373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:05, skipping insertion in model container [2022-11-16 12:17:05,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:05" (1/1) ... [2022-11-16 12:17:05,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:17:05,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:17:06,093 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-16 12:17:06,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:06,116 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-16 12:17:06,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fcbeb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:06, skipping insertion in model container [2022-11-16 12:17:06,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:06,118 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-16 12:17:06,120 INFO L158 Benchmark]: Toolchain (without parser) took 363.92ms. Allocated memory is still 125.8MB. Free memory was 92.1MB in the beginning and 101.7MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:17:06,121 INFO L158 Benchmark]: CDTParser took 1.04ms. Allocated memory is still 81.8MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:17:06,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.61ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 101.7MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:17:06,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04ms. Allocated memory is still 81.8MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.61ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 101.7MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 151]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:17:08,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:17:08,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:17:08,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:17:08,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:17:08,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:17:08,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:17:08,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:17:08,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:17:08,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:17:08,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:17:08,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:17:08,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:17:08,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:17:08,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:17:08,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:17:08,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:17:08,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:17:08,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:17:08,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:17:08,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:17:08,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:17:08,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:17:08,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:17:08,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:17:08,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:17:08,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:17:08,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:17:08,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:17:08,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:17:08,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:17:08,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:17:08,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:17:08,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:17:08,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:17:08,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:17:08,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:17:08,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:17:08,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:17:08,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:17:08,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:17:08,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 12:17:08,739 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:17:08,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:17:08,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:17:08,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:17:08,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:17:08,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:17:08,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:17:08,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:17:08,743 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:17:08,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:17:08,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:17:08,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:17:08,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:17:08,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:17:08,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:17:08,745 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 12:17:08,746 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 12:17:08,746 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 12:17:08,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:17:08,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:17:08,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:17:08,747 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:17:08,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:17:08,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:17:08,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:17:08,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:17:08,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:17:08,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:17:08,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:17:08,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:17:08,749 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:17:08,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:17:08,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:17:08,750 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 [2022-11-16 12:17:09,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:17:09,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:17:09,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:17:09,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:17:09,198 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:17:09,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-16 12:17:09,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/aaee85633/c8f3acf676e14087b8844f2e74b58895/FLAG38fd8ba42 [2022-11-16 12:17:09,959 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:17:09,960 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c [2022-11-16 12:17:09,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/aaee85633/c8f3acf676e14087b8844f2e74b58895/FLAG38fd8ba42 [2022-11-16 12:17:10,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/data/aaee85633/c8f3acf676e14087b8844f2e74b58895 [2022-11-16 12:17:10,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:17:10,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:17:10,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:10,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:17:10,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:17:10,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d71783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10, skipping insertion in model container [2022-11-16 12:17:10,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:17:10,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:17:10,586 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-16 12:17:10,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:10,634 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:17:10,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:17:10,702 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-16 12:17:10,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:10,721 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:17:10,770 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/sv-benchmarks/c/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2022-11-16 12:17:10,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:17:10,812 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:17:10,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10 WrapperNode [2022-11-16 12:17:10,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:17:10,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:17:10,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:17:10,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:17:10,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,898 INFO L138 Inliner]: procedures = 28, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 278 [2022-11-16 12:17:10,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:17:10,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:17:10,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:17:10,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:17:10,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:17:10,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:17:10,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:17:10,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:17:10,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (1/1) ... [2022-11-16 12:17:10,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:17:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:17:11,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:17:11,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:17:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:17:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:17:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:17:11,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:17:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:17:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:17:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:17:11,058 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:17:11,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:17:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:17:11,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:17:11,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:17:11,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:17:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:17:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:17:11,062 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:17:11,225 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:17:11,227 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:17:12,152 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:17:12,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:17:12,166 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:17:12,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:12 BoogieIcfgContainer [2022-11-16 12:17:12,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:17:12,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:17:12,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:17:12,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:17:12,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:17:10" (1/3) ... [2022-11-16 12:17:12,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b16469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:12, skipping insertion in model container [2022-11-16 12:17:12,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:17:10" (2/3) ... [2022-11-16 12:17:12,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b16469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:17:12, skipping insertion in model container [2022-11-16 12:17:12,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:17:12" (3/3) ... [2022-11-16 12:17:12,179 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2022-11-16 12:17:12,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:17:12,212 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 12:17:12,233 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:17:12,523 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:17:12,588 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 12:17:12,608 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 380 transitions, 784 flow [2022-11-16 12:17:12,615 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 380 transitions, 784 flow [2022-11-16 12:17:12,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 380 transitions, 784 flow [2022-11-16 12:17:12,824 INFO L130 PetriNetUnfolder]: 26/377 cut-off events. [2022-11-16 12:17:12,825 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:17:12,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 377 events. 26/377 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1000 event pairs, 0 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 269. Up to 2 conditions per place. [2022-11-16 12:17:12,877 INFO L119 LiptonReduction]: Number of co-enabled transitions 37914 [2022-11-16 12:17:59,904 WARN L233 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 131 DAG size of output: 128 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-16 12:18:00,865 INFO L134 LiptonReduction]: Checked pairs total: 34816 [2022-11-16 12:18:00,866 INFO L136 LiptonReduction]: Total number of compositions: 447 [2022-11-16 12:18:00,874 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 49 transitions, 122 flow [2022-11-16 12:18:00,959 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:00,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:18:00,987 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@a9abc9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:18:00,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-16 12:18:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:00,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 12:18:00,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:00,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 12:18:01,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:01,006 INFO L85 PathProgramCache]: Analyzing trace with hash 49827, now seen corresponding path program 1 times [2022-11-16 12:18:01,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:01,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212974980] [2022-11-16 12:18:01,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:01,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:01,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:01,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:01,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:18:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:01,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:18:01,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:01,474 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-16 12:18:01,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 50 [2022-11-16 12:18:01,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:01,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:01,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:01,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212974980] [2022-11-16 12:18:01,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212974980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:01,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:01,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:01,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449842717] [2022-11-16 12:18:01,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:01,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:01,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:01,601 INFO L87 Difference]: Start difference. First operand has 750 states, 616 states have (on average 4.165584415584416) internal successors, (2566), 749 states have internal predecessors, (2566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:01,995 INFO L93 Difference]: Finished difference Result 748 states and 2564 transitions. [2022-11-16 12:18:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-16 12:18:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:02,053 INFO L225 Difference]: With dead ends: 748 [2022-11-16 12:18:02,053 INFO L226 Difference]: Without dead ends: 748 [2022-11-16 12:18:02,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:02,062 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:02,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:18:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-11-16 12:18:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-11-16 12:18:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 616 states have (on average 4.162337662337662) internal successors, (2564), 747 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:02,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 2564 transitions. [2022-11-16 12:18:02,211 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 2564 transitions. Word has length 2 [2022-11-16 12:18:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:02,212 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 2564 transitions. [2022-11-16 12:18:02,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 2564 transitions. [2022-11-16 12:18:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 12:18:02,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:02,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 12:18:02,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:02,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:02,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 49828, now seen corresponding path program 1 times [2022-11-16 12:18:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:02,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450088897] [2022-11-16 12:18:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:02,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:02,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:02,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:18:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:02,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:18:02,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:02,751 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:02,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:02,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:02,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:02,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450088897] [2022-11-16 12:18:02,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450088897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:02,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:02,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:02,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335237726] [2022-11-16 12:18:02,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:02,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:02,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:02,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:02,807 INFO L87 Difference]: Start difference. First operand 748 states and 2564 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:03,349 INFO L93 Difference]: Finished difference Result 1494 states and 5126 transitions. [2022-11-16 12:18:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:03,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-16 12:18:03,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:03,363 INFO L225 Difference]: With dead ends: 1494 [2022-11-16 12:18:03,364 INFO L226 Difference]: Without dead ends: 1494 [2022-11-16 12:18:03,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:03,366 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:03,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:18:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-11-16 12:18:03,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 749. [2022-11-16 12:18:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 617 states have (on average 4.162074554294976) internal successors, (2568), 748 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 2568 transitions. [2022-11-16 12:18:03,462 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 2568 transitions. Word has length 2 [2022-11-16 12:18:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:03,462 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 2568 transitions. [2022-11-16 12:18:03,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 2568 transitions. [2022-11-16 12:18:03,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-16 12:18:03,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:03,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-16 12:18:03,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:03,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:03,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:03,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:03,690 INFO L85 PathProgramCache]: Analyzing trace with hash 50043, now seen corresponding path program 1 times [2022-11-16 12:18:03,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:03,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305839536] [2022-11-16 12:18:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:03,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:03,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:03,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:18:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:03,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:18:03,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:03,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:03,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:03,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305839536] [2022-11-16 12:18:03,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305839536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:03,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:03,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:03,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808273079] [2022-11-16 12:18:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:03,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:03,812 INFO L87 Difference]: Start difference. First operand 749 states and 2568 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:04,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:04,157 INFO L93 Difference]: Finished difference Result 749 states and 2565 transitions. [2022-11-16 12:18:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:04,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-16 12:18:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:04,166 INFO L225 Difference]: With dead ends: 749 [2022-11-16 12:18:04,167 INFO L226 Difference]: Without dead ends: 749 [2022-11-16 12:18:04,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:04,168 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:04,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:18:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-11-16 12:18:04,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2022-11-16 12:18:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 617 states have (on average 4.157212317666127) internal successors, (2565), 748 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 2565 transitions. [2022-11-16 12:18:04,204 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 2565 transitions. Word has length 2 [2022-11-16 12:18:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:04,205 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 2565 transitions. [2022-11-16 12:18:04,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 2565 transitions. [2022-11-16 12:18:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 12:18:04,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:04,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 12:18:04,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:04,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:04,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:04,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1551065, now seen corresponding path program 1 times [2022-11-16 12:18:04,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:04,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107356073] [2022-11-16 12:18:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:04,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:04,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:04,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:04,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:18:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:04,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:18:04,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:04,678 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:04,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:04,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:04,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:04,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107356073] [2022-11-16 12:18:04,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107356073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:04,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:04,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-16 12:18:04,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205014730] [2022-11-16 12:18:04,915 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:04,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:18:04,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:04,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:18:04,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:18:04,917 INFO L87 Difference]: Start difference. First operand 749 states and 2565 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:06,408 INFO L93 Difference]: Finished difference Result 2241 states and 7689 transitions. [2022-11-16 12:18:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:18:06,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 12:18:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:06,430 INFO L225 Difference]: With dead ends: 2241 [2022-11-16 12:18:06,438 INFO L226 Difference]: Without dead ends: 2241 [2022-11-16 12:18:06,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:18:06,441 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 120 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:06,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 0 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:18:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-11-16 12:18:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 751. [2022-11-16 12:18:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 619 states have (on average 4.156704361873991) internal successors, (2573), 750 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 2573 transitions. [2022-11-16 12:18:06,511 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 2573 transitions. Word has length 3 [2022-11-16 12:18:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:06,512 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 2573 transitions. [2022-11-16 12:18:06,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:06,512 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 2573 transitions. [2022-11-16 12:18:06,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 12:18:06,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:06,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 12:18:06,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:06,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:06,727 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:06,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:06,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1551280, now seen corresponding path program 1 times [2022-11-16 12:18:06,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:06,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594602119] [2022-11-16 12:18:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:06,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:06,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:06,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 12:18:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:06,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:18:06,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:06,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:06,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:06,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:06,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594602119] [2022-11-16 12:18:06,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594602119] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:06,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:06,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-16 12:18:06,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799918928] [2022-11-16 12:18:06,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:06,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:18:06,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:06,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:18:06,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:18:06,936 INFO L87 Difference]: Start difference. First operand 751 states and 2573 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:07,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:07,456 INFO L93 Difference]: Finished difference Result 751 states and 2567 transitions. [2022-11-16 12:18:07,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:18:07,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 12:18:07,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:07,463 INFO L225 Difference]: With dead ends: 751 [2022-11-16 12:18:07,464 INFO L226 Difference]: Without dead ends: 751 [2022-11-16 12:18:07,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:18:07,465 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:07,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:18:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-11-16 12:18:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2022-11-16 12:18:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 619 states have (on average 4.147011308562197) internal successors, (2567), 750 states have internal predecessors, (2567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 2567 transitions. [2022-11-16 12:18:07,498 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 2567 transitions. Word has length 3 [2022-11-16 12:18:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:07,498 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 2567 transitions. [2022-11-16 12:18:07,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:07,499 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 2567 transitions. [2022-11-16 12:18:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:18:07,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:07,500 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1] [2022-11-16 12:18:07,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:07,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:07,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1490778169, now seen corresponding path program 2 times [2022-11-16 12:18:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:07,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79292429] [2022-11-16 12:18:07,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:07,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:07,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:07,721 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:07,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 12:18:07,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:18:07,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:07,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:18:07,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:08,003 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-16 12:18:08,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 17 treesize of output 44 [2022-11-16 12:18:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:08,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:08,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:18:08,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:08,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79292429] [2022-11-16 12:18:08,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79292429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:08,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:08,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-16 12:18:08,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478031500] [2022-11-16 12:18:08,791 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:08,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:18:08,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:08,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:18:08,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:08,792 INFO L87 Difference]: Start difference. First operand 751 states and 2567 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:09,331 INFO L93 Difference]: Finished difference Result 750 states and 2565 transitions. [2022-11-16 12:18:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:18:09,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:18:09,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:09,338 INFO L225 Difference]: With dead ends: 750 [2022-11-16 12:18:09,338 INFO L226 Difference]: Without dead ends: 750 [2022-11-16 12:18:09,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:09,339 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:09,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 0 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:18:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-11-16 12:18:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2022-11-16 12:18:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 619 states have (on average 4.143780290791599) internal successors, (2565), 749 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 2565 transitions. [2022-11-16 12:18:09,371 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 2565 transitions. Word has length 5 [2022-11-16 12:18:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:09,371 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 2565 transitions. [2022-11-16 12:18:09,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 2565 transitions. [2022-11-16 12:18:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:18:09,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:09,373 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1] [2022-11-16 12:18:09,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:09,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:09,579 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:09,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1490778384, now seen corresponding path program 2 times [2022-11-16 12:18:09,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:09,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270517120] [2022-11-16 12:18:09,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:09,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:09,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:09,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 12:18:09,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:18:09,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:09,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:18:09,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:09,797 INFO L321 Elim1Store]: treesize reduction 111, result has 19.0 percent of original size [2022-11-16 12:18:09,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 51 [2022-11-16 12:18:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:09,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:09,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:09,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270517120] [2022-11-16 12:18:09,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270517120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:09,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:09,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037065279] [2022-11-16 12:18:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:09,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:09,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:09,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:09,943 INFO L87 Difference]: Start difference. First operand 750 states and 2565 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:10,166 INFO L93 Difference]: Finished difference Result 749 states and 2564 transitions. [2022-11-16 12:18:10,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:18:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:10,172 INFO L225 Difference]: With dead ends: 749 [2022-11-16 12:18:10,173 INFO L226 Difference]: Without dead ends: 749 [2022-11-16 12:18:10,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:10,174 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:10,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 40 Unchecked, 0.2s Time] [2022-11-16 12:18:10,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-11-16 12:18:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2022-11-16 12:18:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 619 states have (on average 4.142164781906301) internal successors, (2564), 748 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 2564 transitions. [2022-11-16 12:18:10,208 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 2564 transitions. Word has length 5 [2022-11-16 12:18:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:10,209 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 2564 transitions. [2022-11-16 12:18:10,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 2564 transitions. [2022-11-16 12:18:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:18:10,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:10,210 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1] [2022-11-16 12:18:10,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:10,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:10,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:10,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:10,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1490778385, now seen corresponding path program 1 times [2022-11-16 12:18:10,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:10,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022265583] [2022-11-16 12:18:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:10,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:10,426 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:10,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 12:18:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:10,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:18:10,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:10,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:10,736 INFO L321 Elim1Store]: treesize reduction 30, result has 48.3 percent of original size [2022-11-16 12:18:10,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 33 [2022-11-16 12:18:10,766 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-16 12:18:10,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2022-11-16 12:18:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:10,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:10,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:10,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022265583] [2022-11-16 12:18:10,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022265583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:10,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:10,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:10,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050540680] [2022-11-16 12:18:10,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:10,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:10,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:10,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:10,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:10,917 INFO L87 Difference]: Start difference. First operand 749 states and 2564 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:11,119 INFO L93 Difference]: Finished difference Result 748 states and 2563 transitions. [2022-11-16 12:18:11,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:11,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:18:11,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:11,128 INFO L225 Difference]: With dead ends: 748 [2022-11-16 12:18:11,128 INFO L226 Difference]: Without dead ends: 748 [2022-11-16 12:18:11,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:11,131 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:11,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-16 12:18:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-11-16 12:18:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-11-16 12:18:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 619 states have (on average 4.140549273021001) internal successors, (2563), 747 states have internal predecessors, (2563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 2563 transitions. [2022-11-16 12:18:11,163 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 2563 transitions. Word has length 5 [2022-11-16 12:18:11,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:11,164 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 2563 transitions. [2022-11-16 12:18:11,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:11,164 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 2563 transitions. [2022-11-16 12:18:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:18:11,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:11,165 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2022-11-16 12:18:11,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:11,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:11,379 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:11,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1881012922, now seen corresponding path program 1 times [2022-11-16 12:18:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:11,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215198078] [2022-11-16 12:18:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:11,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:11,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:11,381 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-16 12:18:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:11,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:11,651 INFO L321 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2022-11-16 12:18:11,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 40 [2022-11-16 12:18:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:11,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:11,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:11,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215198078] [2022-11-16 12:18:11,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215198078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:11,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:11,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:11,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012222301] [2022-11-16 12:18:11,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:11,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:11,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:11,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:11,882 INFO L87 Difference]: Start difference. First operand 748 states and 2563 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:12,061 INFO L93 Difference]: Finished difference Result 747 states and 2561 transitions. [2022-11-16 12:18:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:12,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 12:18:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:12,068 INFO L225 Difference]: With dead ends: 747 [2022-11-16 12:18:12,068 INFO L226 Difference]: Without dead ends: 747 [2022-11-16 12:18:12,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:12,069 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:12,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-16 12:18:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-16 12:18:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2022-11-16 12:18:12,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 618 states have (on average 4.144012944983818) internal successors, (2561), 746 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 2561 transitions. [2022-11-16 12:18:12,102 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 2561 transitions. Word has length 7 [2022-11-16 12:18:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:12,102 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 2561 transitions. [2022-11-16 12:18:12,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 2561 transitions. [2022-11-16 12:18:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 12:18:12,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:12,103 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2022-11-16 12:18:12,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:12,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:12,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:12,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:12,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1881012923, now seen corresponding path program 1 times [2022-11-16 12:18:12,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:12,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365207105] [2022-11-16 12:18:12,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:12,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:12,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:12,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:12,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-16 12:18:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:12,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:18:12,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:12,682 INFO L321 Elim1Store]: treesize reduction 59, result has 36.6 percent of original size [2022-11-16 12:18:12,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2022-11-16 12:18:12,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-11-16 12:18:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:12,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:12,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:12,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365207105] [2022-11-16 12:18:12,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365207105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:12,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:12,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:12,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215641924] [2022-11-16 12:18:12,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:12,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:12,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:12,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:12,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:12,871 INFO L87 Difference]: Start difference. First operand 747 states and 2561 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:13,055 INFO L93 Difference]: Finished difference Result 746 states and 2559 transitions. [2022-11-16 12:18:13,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:13,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 12:18:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:13,061 INFO L225 Difference]: With dead ends: 746 [2022-11-16 12:18:13,061 INFO L226 Difference]: Without dead ends: 746 [2022-11-16 12:18:13,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:13,062 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:13,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 39 Unchecked, 0.2s Time] [2022-11-16 12:18:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-16 12:18:13,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-11-16 12:18:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 617 states have (on average 4.1474878444084275) internal successors, (2559), 745 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:13,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2559 transitions. [2022-11-16 12:18:13,093 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2559 transitions. Word has length 7 [2022-11-16 12:18:13,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:13,093 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2559 transitions. [2022-11-16 12:18:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2559 transitions. [2022-11-16 12:18:13,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:18:13,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:13,095 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2022-11-16 12:18:13,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:13,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:13,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:13,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1818141342, now seen corresponding path program 1 times [2022-11-16 12:18:13,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:13,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737027181] [2022-11-16 12:18:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:13,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:13,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:13,311 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:13,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-16 12:18:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:13,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:13,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:13,578 INFO L321 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2022-11-16 12:18:13,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 40 [2022-11-16 12:18:13,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:13,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:13,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:13,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737027181] [2022-11-16 12:18:13,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737027181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:13,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:13,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:13,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354853064] [2022-11-16 12:18:13,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:13,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:13,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:13,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:13,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:13,843 INFO L87 Difference]: Start difference. First operand 746 states and 2559 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:13,998 INFO L93 Difference]: Finished difference Result 747 states and 2565 transitions. [2022-11-16 12:18:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:18:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:14,005 INFO L225 Difference]: With dead ends: 747 [2022-11-16 12:18:14,005 INFO L226 Difference]: Without dead ends: 747 [2022-11-16 12:18:14,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:14,006 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:14,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 39 Unchecked, 0.1s Time] [2022-11-16 12:18:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-16 12:18:14,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2022-11-16 12:18:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 618 states have (on average 4.150485436893204) internal successors, (2565), 746 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:14,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 2565 transitions. [2022-11-16 12:18:14,036 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 2565 transitions. Word has length 8 [2022-11-16 12:18:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:14,037 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 2565 transitions. [2022-11-16 12:18:14,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 2565 transitions. [2022-11-16 12:18:14,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:18:14,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:14,038 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2022-11-16 12:18:14,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:14,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:14,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:14,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1818141455, now seen corresponding path program 1 times [2022-11-16 12:18:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:14,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012009494] [2022-11-16 12:18:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:14,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:14,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:14,255 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:14,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-16 12:18:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:14,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:18:14,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:14,503 INFO L321 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2022-11-16 12:18:14,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 50 [2022-11-16 12:18:14,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:14,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:14,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:14,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012009494] [2022-11-16 12:18:14,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012009494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:14,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:14,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:18:14,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575128666] [2022-11-16 12:18:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:14,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:18:14,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:14,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:18:14,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:18:14,545 INFO L87 Difference]: Start difference. First operand 747 states and 2565 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:14,804 INFO L93 Difference]: Finished difference Result 423 states and 1417 transitions. [2022-11-16 12:18:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:18:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:18:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:14,808 INFO L225 Difference]: With dead ends: 423 [2022-11-16 12:18:14,808 INFO L226 Difference]: Without dead ends: 423 [2022-11-16 12:18:14,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:18:14,809 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:14,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-16 12:18:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2022-11-16 12:18:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 375 states have (on average 3.7786666666666666) internal successors, (1417), 422 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1417 transitions. [2022-11-16 12:18:14,827 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1417 transitions. Word has length 8 [2022-11-16 12:18:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:14,827 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 1417 transitions. [2022-11-16 12:18:14,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1417 transitions. [2022-11-16 12:18:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:18:14,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:14,829 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2022-11-16 12:18:14,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:15,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:15,043 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1818141456, now seen corresponding path program 1 times [2022-11-16 12:18:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:15,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473596288] [2022-11-16 12:18:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:15,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:15,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:15,045 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:15,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-16 12:18:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:15,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:18:15,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:15,347 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:15,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:15,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:15,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473596288] [2022-11-16 12:18:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473596288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:15,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:15,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252686702] [2022-11-16 12:18:15,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:15,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:18:15,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:15,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:18:15,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:18:15,448 INFO L87 Difference]: Start difference. First operand 423 states and 1417 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:15,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:15,942 INFO L93 Difference]: Finished difference Result 671 states and 2227 transitions. [2022-11-16 12:18:15,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:18:15,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:18:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:15,948 INFO L225 Difference]: With dead ends: 671 [2022-11-16 12:18:15,948 INFO L226 Difference]: Without dead ends: 671 [2022-11-16 12:18:15,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:18:15,949 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 112 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:15,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 0 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:18:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-11-16 12:18:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 505. [2022-11-16 12:18:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 457 states have (on average 3.914660831509847) internal successors, (1789), 504 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 1789 transitions. [2022-11-16 12:18:15,971 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 1789 transitions. Word has length 8 [2022-11-16 12:18:15,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:15,972 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 1789 transitions. [2022-11-16 12:18:15,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 1789 transitions. [2022-11-16 12:18:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:18:15,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:15,973 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2022-11-16 12:18:15,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-11-16 12:18:16,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:16,187 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:16,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1818141341, now seen corresponding path program 1 times [2022-11-16 12:18:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:16,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103354107] [2022-11-16 12:18:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:16,188 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:16,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:16,189 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:16,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 12:18:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:16,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:16,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:16,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:16,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:16,487 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-11-16 12:18:16,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2022-11-16 12:18:16,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-16 12:18:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:16,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:16,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103354107] [2022-11-16 12:18:16,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103354107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:16,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:16,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:16,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374558018] [2022-11-16 12:18:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:16,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:16,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:16,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:16,667 INFO L87 Difference]: Start difference. First operand 505 states and 1789 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:16,821 INFO L93 Difference]: Finished difference Result 504 states and 1786 transitions. [2022-11-16 12:18:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:16,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:18:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:16,826 INFO L225 Difference]: With dead ends: 504 [2022-11-16 12:18:16,826 INFO L226 Difference]: Without dead ends: 504 [2022-11-16 12:18:16,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:16,827 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:16,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 36 Unchecked, 0.1s Time] [2022-11-16 12:18:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-11-16 12:18:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2022-11-16 12:18:16,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 456 states have (on average 3.9166666666666665) internal successors, (1786), 503 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1786 transitions. [2022-11-16 12:18:16,863 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1786 transitions. Word has length 8 [2022-11-16 12:18:16,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:16,864 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 1786 transitions. [2022-11-16 12:18:16,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1786 transitions. [2022-11-16 12:18:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:16,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:16,866 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:16,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:17,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:17,080 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:17,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash 527849454, now seen corresponding path program 1 times [2022-11-16 12:18:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:17,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804249680] [2022-11-16 12:18:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:17,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:17,083 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:17,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-16 12:18:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:17,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:18:17,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:17,383 INFO L321 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2022-11-16 12:18:17,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 29 [2022-11-16 12:18:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:17,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:17,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:17,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804249680] [2022-11-16 12:18:17,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804249680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:17,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:17,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384181442] [2022-11-16 12:18:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:17,429 INFO L87 Difference]: Start difference. First operand 504 states and 1786 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:17,622 INFO L93 Difference]: Finished difference Result 480 states and 1714 transitions. [2022-11-16 12:18:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:17,627 INFO L225 Difference]: With dead ends: 480 [2022-11-16 12:18:17,627 INFO L226 Difference]: Without dead ends: 480 [2022-11-16 12:18:17,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:17,628 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:17,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:17,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-16 12:18:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2022-11-16 12:18:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 438 states have (on average 3.91324200913242) internal successors, (1714), 479 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:17,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1714 transitions. [2022-11-16 12:18:17,648 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1714 transitions. Word has length 9 [2022-11-16 12:18:17,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:17,648 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 1714 transitions. [2022-11-16 12:18:17,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:17,649 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1714 transitions. [2022-11-16 12:18:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:17,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:17,650 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:17,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:17,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:17,864 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:17,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash 527849455, now seen corresponding path program 1 times [2022-11-16 12:18:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:17,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501826960] [2022-11-16 12:18:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:17,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:17,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:17,866 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:17,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-16 12:18:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:18,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-16 12:18:18,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:18,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:18,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:18,192 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-16 12:18:18,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 32 [2022-11-16 12:18:18,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-16 12:18:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:18,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:18,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:18,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501826960] [2022-11-16 12:18:18,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501826960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:18,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:18,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518356160] [2022-11-16 12:18:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:18,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:18,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:18,293 INFO L87 Difference]: Start difference. First operand 480 states and 1714 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:18,485 INFO L93 Difference]: Finished difference Result 456 states and 1642 transitions. [2022-11-16 12:18:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:18,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:18,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:18,490 INFO L225 Difference]: With dead ends: 456 [2022-11-16 12:18:18,490 INFO L226 Difference]: Without dead ends: 456 [2022-11-16 12:18:18,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:18,491 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:18,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-16 12:18:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2022-11-16 12:18:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 420 states have (on average 3.9095238095238094) internal successors, (1642), 455 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 1642 transitions. [2022-11-16 12:18:18,507 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 1642 transitions. Word has length 9 [2022-11-16 12:18:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:18,508 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 1642 transitions. [2022-11-16 12:18:18,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 1642 transitions. [2022-11-16 12:18:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:18,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:18,509 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:18,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:18,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:18,724 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash 527811711, now seen corresponding path program 1 times [2022-11-16 12:18:18,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:18,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051411177] [2022-11-16 12:18:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:18,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:18,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:18,726 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:18,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-16 12:18:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:18,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:18:18,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:19,007 INFO L321 Elim1Store]: treesize reduction 101, result has 20.5 percent of original size [2022-11-16 12:18:19,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 44 [2022-11-16 12:18:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:19,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:19,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:19,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051411177] [2022-11-16 12:18:19,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051411177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:19,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:19,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493504946] [2022-11-16 12:18:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:19,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:19,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:19,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:19,060 INFO L87 Difference]: Start difference. First operand 456 states and 1642 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:19,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:19,265 INFO L93 Difference]: Finished difference Result 437 states and 1588 transitions. [2022-11-16 12:18:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:19,269 INFO L225 Difference]: With dead ends: 437 [2022-11-16 12:18:19,269 INFO L226 Difference]: Without dead ends: 437 [2022-11-16 12:18:19,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:19,270 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:19,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-16 12:18:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2022-11-16 12:18:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 407 states have (on average 3.901719901719902) internal successors, (1588), 436 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 1588 transitions. [2022-11-16 12:18:19,291 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 1588 transitions. Word has length 9 [2022-11-16 12:18:19,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:19,291 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 1588 transitions. [2022-11-16 12:18:19,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 1588 transitions. [2022-11-16 12:18:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:19,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:19,293 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:19,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:19,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:19,508 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:19,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash 527811825, now seen corresponding path program 1 times [2022-11-16 12:18:19,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:19,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87107630] [2022-11-16 12:18:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:19,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:19,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:19,510 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-16 12:18:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:19,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:19,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:19,786 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:19,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:19,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:20,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:20,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87107630] [2022-11-16 12:18:20,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87107630] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:20,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:20,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-16 12:18:20,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506026123] [2022-11-16 12:18:20,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:20,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:18:20,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:18:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:20,262 INFO L87 Difference]: Start difference. First operand 437 states and 1588 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:21,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:21,541 INFO L93 Difference]: Finished difference Result 986 states and 3349 transitions. [2022-11-16 12:18:21,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:18:21,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:21,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:21,548 INFO L225 Difference]: With dead ends: 986 [2022-11-16 12:18:21,548 INFO L226 Difference]: Without dead ends: 986 [2022-11-16 12:18:21,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:18:21,549 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 262 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:21,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 0 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:18:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-11-16 12:18:21,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 587. [2022-11-16 12:18:21,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 557 states have (on average 4.089766606822262) internal successors, (2278), 586 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 2278 transitions. [2022-11-16 12:18:21,577 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 2278 transitions. Word has length 9 [2022-11-16 12:18:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:21,578 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 2278 transitions. [2022-11-16 12:18:21,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:21,578 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 2278 transitions. [2022-11-16 12:18:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:21,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:21,579 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:21,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:21,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:21,794 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash 527811710, now seen corresponding path program 1 times [2022-11-16 12:18:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:21,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664018809] [2022-11-16 12:18:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:21,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:21,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:21,797 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:21,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-16 12:18:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:22,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:22,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:22,131 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-11-16 12:18:22,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2022-11-16 12:18:22,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-16 12:18:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:22,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:22,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:22,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664018809] [2022-11-16 12:18:22,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664018809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:22,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:22,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909044472] [2022-11-16 12:18:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:22,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:22,318 INFO L87 Difference]: Start difference. First operand 587 states and 2278 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:22,452 INFO L93 Difference]: Finished difference Result 584 states and 2268 transitions. [2022-11-16 12:18:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:22,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:22,457 INFO L225 Difference]: With dead ends: 584 [2022-11-16 12:18:22,457 INFO L226 Difference]: Without dead ends: 584 [2022-11-16 12:18:22,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:22,458 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:22,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:18:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-16 12:18:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2022-11-16 12:18:22,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 554 states have (on average 4.093862815884476) internal successors, (2268), 583 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 2268 transitions. [2022-11-16 12:18:22,492 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 2268 transitions. Word has length 9 [2022-11-16 12:18:22,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:22,493 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 2268 transitions. [2022-11-16 12:18:22,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 2268 transitions. [2022-11-16 12:18:22,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:18:22,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:22,494 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:22,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:22,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:22,710 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:22,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash 527812578, now seen corresponding path program 1 times [2022-11-16 12:18:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:22,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390827241] [2022-11-16 12:18:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:22,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:22,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:22,712 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:22,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-16 12:18:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:22,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:22,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:22,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:22,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:23,052 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-11-16 12:18:23,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2022-11-16 12:18:23,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-16 12:18:23,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:23,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:23,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:23,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390827241] [2022-11-16 12:18:23,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390827241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:23,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:23,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:23,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141964152] [2022-11-16 12:18:23,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:23,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:23,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:23,234 INFO L87 Difference]: Start difference. First operand 584 states and 2268 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:23,381 INFO L93 Difference]: Finished difference Result 585 states and 2269 transitions. [2022-11-16 12:18:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:23,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:18:23,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:23,386 INFO L225 Difference]: With dead ends: 585 [2022-11-16 12:18:23,386 INFO L226 Difference]: Without dead ends: 585 [2022-11-16 12:18:23,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:23,387 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:23,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:18:23,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-16 12:18:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2022-11-16 12:18:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 555 states have (on average 4.088288288288289) internal successors, (2269), 584 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:23,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 2269 transitions. [2022-11-16 12:18:23,409 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 2269 transitions. Word has length 9 [2022-11-16 12:18:23,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:23,410 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 2269 transitions. [2022-11-16 12:18:23,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 2269 transitions. [2022-11-16 12:18:23,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:18:23,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:23,411 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:23,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:23,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:23,626 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:23,626 INFO L85 PathProgramCache]: Analyzing trace with hash -816535751, now seen corresponding path program 1 times [2022-11-16 12:18:23,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:23,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344085073] [2022-11-16 12:18:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:23,628 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:23,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-16 12:18:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:23,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:18:23,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:23,943 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:23,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:24,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:24,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:24,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344085073] [2022-11-16 12:18:24,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344085073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:24,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:24,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:24,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780277190] [2022-11-16 12:18:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:24,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:18:24,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:24,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:18:24,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:18:24,044 INFO L87 Difference]: Start difference. First operand 585 states and 2269 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:24,483 INFO L93 Difference]: Finished difference Result 871 states and 3391 transitions. [2022-11-16 12:18:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:18:24,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 12:18:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:24,491 INFO L225 Difference]: With dead ends: 871 [2022-11-16 12:18:24,491 INFO L226 Difference]: Without dead ends: 871 [2022-11-16 12:18:24,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:18:24,493 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:24,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:18:24,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-11-16 12:18:24,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 723. [2022-11-16 12:18:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 693 states have (on average 4.26984126984127) internal successors, (2959), 722 states have internal predecessors, (2959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 2959 transitions. [2022-11-16 12:18:24,523 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 2959 transitions. Word has length 10 [2022-11-16 12:18:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:24,523 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 2959 transitions. [2022-11-16 12:18:24,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 2959 transitions. [2022-11-16 12:18:24,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:18:24,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:24,525 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:24,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:24,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:24,739 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:24,739 INFO L85 PathProgramCache]: Analyzing trace with hash -817700319, now seen corresponding path program 1 times [2022-11-16 12:18:24,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:24,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814342808] [2022-11-16 12:18:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:24,740 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:24,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:24,742 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:24,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-16 12:18:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:24,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:24,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:25,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:25,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 12:18:25,099 INFO L321 Elim1Store]: treesize reduction 43, result has 41.9 percent of original size [2022-11-16 12:18:25,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2022-11-16 12:18:25,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-11-16 12:18:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 12:18:25,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:25,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:25,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814342808] [2022-11-16 12:18:25,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814342808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:25,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:25,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 12:18:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327756064] [2022-11-16 12:18:25,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:25,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:25,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:25,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:25,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:25,339 INFO L87 Difference]: Start difference. First operand 723 states and 2959 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:25,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:25,479 INFO L93 Difference]: Finished difference Result 722 states and 2958 transitions. [2022-11-16 12:18:25,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:25,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 12:18:25,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:25,484 INFO L225 Difference]: With dead ends: 722 [2022-11-16 12:18:25,484 INFO L226 Difference]: Without dead ends: 722 [2022-11-16 12:18:25,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:25,485 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:25,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 30 Unchecked, 0.1s Time] [2022-11-16 12:18:25,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-11-16 12:18:25,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 721. [2022-11-16 12:18:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 692 states have (on average 4.273121387283237) internal successors, (2957), 720 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2957 transitions. [2022-11-16 12:18:25,512 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2957 transitions. Word has length 10 [2022-11-16 12:18:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:25,512 INFO L495 AbstractCegarLoop]: Abstraction has 721 states and 2957 transitions. [2022-11-16 12:18:25,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2957 transitions. [2022-11-16 12:18:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:18:25,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:25,514 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:25,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:25,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:25,728 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:25,729 INFO L85 PathProgramCache]: Analyzing trace with hash 457218423, now seen corresponding path program 1 times [2022-11-16 12:18:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581148286] [2022-11-16 12:18:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:25,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:25,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:25,730 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:25,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-16 12:18:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:25,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:18:25,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:25,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:25,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581148286] [2022-11-16 12:18:25,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581148286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:25,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:25,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:18:25,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179983179] [2022-11-16 12:18:25,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:25,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:18:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:18:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:25,919 INFO L87 Difference]: Start difference. First operand 721 states and 2957 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:26,097 INFO L93 Difference]: Finished difference Result 581 states and 2309 transitions. [2022-11-16 12:18:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:26,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:18:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:26,101 INFO L225 Difference]: With dead ends: 581 [2022-11-16 12:18:26,102 INFO L226 Difference]: Without dead ends: 581 [2022-11-16 12:18:26,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:18:26,103 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:26,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:26,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-11-16 12:18:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2022-11-16 12:18:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 560 states have (on average 4.123214285714286) internal successors, (2309), 580 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 2309 transitions. [2022-11-16 12:18:26,124 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 2309 transitions. Word has length 11 [2022-11-16 12:18:26,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:26,125 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 2309 transitions. [2022-11-16 12:18:26,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,125 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 2309 transitions. [2022-11-16 12:18:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:18:26,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:26,126 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:26,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-11-16 12:18:26,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:26,339 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:26,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash 457218424, now seen corresponding path program 1 times [2022-11-16 12:18:26,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671562147] [2022-11-16 12:18:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:26,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:26,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:26,342 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:26,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-16 12:18:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:18:26,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:26,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:26,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:26,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:26,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671562147] [2022-11-16 12:18:26,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671562147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:26,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:26,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:18:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044970708] [2022-11-16 12:18:26,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:26,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:18:26,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:26,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:18:26,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:18:26,625 INFO L87 Difference]: Start difference. First operand 581 states and 2309 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:26,824 INFO L93 Difference]: Finished difference Result 441 states and 1661 transitions. [2022-11-16 12:18:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:18:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:26,828 INFO L225 Difference]: With dead ends: 441 [2022-11-16 12:18:26,842 INFO L226 Difference]: Without dead ends: 441 [2022-11-16 12:18:26,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:18:26,843 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:26,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-16 12:18:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2022-11-16 12:18:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 428 states have (on average 3.880841121495327) internal successors, (1661), 440 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 1661 transitions. [2022-11-16 12:18:26,858 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 1661 transitions. Word has length 11 [2022-11-16 12:18:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:26,859 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 1661 transitions. [2022-11-16 12:18:26,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 1661 transitions. [2022-11-16 12:18:26,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:18:26,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:26,861 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:26,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:27,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:27,075 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 457198396, now seen corresponding path program 1 times [2022-11-16 12:18:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:27,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292445059] [2022-11-16 12:18:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:27,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:27,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:27,078 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:27,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-16 12:18:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:27,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:27,425 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:27,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:27,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:27,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:27,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292445059] [2022-11-16 12:18:27,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292445059] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:27,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:27,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-16 12:18:27,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525065450] [2022-11-16 12:18:27,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:27,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:18:27,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:27,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:18:27,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:27,965 INFO L87 Difference]: Start difference. First operand 441 states and 1661 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:29,000 INFO L93 Difference]: Finished difference Result 881 states and 3153 transitions. [2022-11-16 12:18:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:18:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:18:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:29,006 INFO L225 Difference]: With dead ends: 881 [2022-11-16 12:18:29,006 INFO L226 Difference]: Without dead ends: 881 [2022-11-16 12:18:29,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:18:29,007 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 228 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:29,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 0 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:18:29,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-11-16 12:18:29,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 605. [2022-11-16 12:18:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 592 states have (on average 4.109797297297297) internal successors, (2433), 604 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 2433 transitions. [2022-11-16 12:18:29,041 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 2433 transitions. Word has length 11 [2022-11-16 12:18:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:29,042 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 2433 transitions. [2022-11-16 12:18:29,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 2433 transitions. [2022-11-16 12:18:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:18:29,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:29,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2022-11-16 12:18:29,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:29,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:29,258 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:29,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash 421072081, now seen corresponding path program 2 times [2022-11-16 12:18:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:29,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676806038] [2022-11-16 12:18:29,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:29,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:29,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:29,260 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:29,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-16 12:18:29,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:18:29,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:29,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:18:29,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:29,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:29,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:29,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676806038] [2022-11-16 12:18:29,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676806038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:29,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:29,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-16 12:18:29,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540662931] [2022-11-16 12:18:29,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:29,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:18:29,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:29,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:18:29,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:29,621 INFO L87 Difference]: Start difference. First operand 605 states and 2433 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:30,796 INFO L93 Difference]: Finished difference Result 1030 states and 3606 transitions. [2022-11-16 12:18:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:18:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:18:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:30,802 INFO L225 Difference]: With dead ends: 1030 [2022-11-16 12:18:30,802 INFO L226 Difference]: Without dead ends: 1030 [2022-11-16 12:18:30,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:30,803 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 231 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:30,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 0 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:18:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-16 12:18:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 532. [2022-11-16 12:18:30,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 524 states have (on average 3.984732824427481) internal successors, (2088), 531 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:30,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 2088 transitions. [2022-11-16 12:18:30,828 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 2088 transitions. Word has length 11 [2022-11-16 12:18:30,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:30,828 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 2088 transitions. [2022-11-16 12:18:30,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:30,829 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 2088 transitions. [2022-11-16 12:18:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 12:18:30,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:30,830 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:30,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:31,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:31,046 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1288869610, now seen corresponding path program 1 times [2022-11-16 12:18:31,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:31,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600238433] [2022-11-16 12:18:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:31,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:31,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:31,049 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:31,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-16 12:18:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:31,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:18:31,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:31,431 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:31,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:31,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:31,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:31,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600238433] [2022-11-16 12:18:31,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600238433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:31,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:31,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:18:31,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845032908] [2022-11-16 12:18:31,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:31,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:18:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:31,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:18:31,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:18:31,551 INFO L87 Difference]: Start difference. First operand 532 states and 2088 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:31,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:31,914 INFO L93 Difference]: Finished difference Result 748 states and 2958 transitions. [2022-11-16 12:18:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:18:31,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-16 12:18:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:31,921 INFO L225 Difference]: With dead ends: 748 [2022-11-16 12:18:31,921 INFO L226 Difference]: Without dead ends: 748 [2022-11-16 12:18:31,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:18:31,922 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:31,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:18:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-11-16 12:18:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 639. [2022-11-16 12:18:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 631 states have (on average 4.166402535657686) internal successors, (2629), 638 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 2629 transitions. [2022-11-16 12:18:31,948 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 2629 transitions. Word has length 12 [2022-11-16 12:18:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:31,949 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 2629 transitions. [2022-11-16 12:18:31,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 2629 transitions. [2022-11-16 12:18:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:18:31,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:31,950 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:31,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-11-16 12:18:32,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:32,163 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1300255266, now seen corresponding path program 1 times [2022-11-16 12:18:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:32,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462703549] [2022-11-16 12:18:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:32,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:32,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:32,165 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:32,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-16 12:18:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:32,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:18:32,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:32,518 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:32,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:32,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:33,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:33,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462703549] [2022-11-16 12:18:33,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462703549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:33,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:33,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-11-16 12:18:33,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62269781] [2022-11-16 12:18:33,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:33,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:18:33,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:33,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:18:33,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:18:33,102 INFO L87 Difference]: Start difference. First operand 639 states and 2629 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:34,098 INFO L93 Difference]: Finished difference Result 1180 states and 4698 transitions. [2022-11-16 12:18:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:18:34,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 12:18:34,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:34,104 INFO L225 Difference]: With dead ends: 1180 [2022-11-16 12:18:34,104 INFO L226 Difference]: Without dead ends: 1180 [2022-11-16 12:18:34,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:18:34,105 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 153 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:34,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 0 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:18:34,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2022-11-16 12:18:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 853. [2022-11-16 12:18:34,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 845 states have (on average 4.391715976331361) internal successors, (3711), 852 states have internal predecessors, (3711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:34,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 3711 transitions. [2022-11-16 12:18:34,143 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 3711 transitions. Word has length 13 [2022-11-16 12:18:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:34,143 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 3711 transitions. [2022-11-16 12:18:34,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 3711 transitions. [2022-11-16 12:18:34,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:18:34,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:34,145 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:34,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-16 12:18:34,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:34,360 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:34,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1281087196, now seen corresponding path program 2 times [2022-11-16 12:18:34,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:34,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978805930] [2022-11-16 12:18:34,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:34,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:34,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:34,364 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:34,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-16 12:18:34,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:18:34,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:34,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:18:34,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:34,773 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:34,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:34,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:34,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:35,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:35,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978805930] [2022-11-16 12:18:35,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978805930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:35,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:35,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2022-11-16 12:18:35,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128566124] [2022-11-16 12:18:35,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:35,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:18:35,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:18:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:18:35,574 INFO L87 Difference]: Start difference. First operand 853 states and 3711 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:37,042 INFO L93 Difference]: Finished difference Result 1135 states and 4291 transitions. [2022-11-16 12:18:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:18:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 12:18:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:37,048 INFO L225 Difference]: With dead ends: 1135 [2022-11-16 12:18:37,048 INFO L226 Difference]: Without dead ends: 1135 [2022-11-16 12:18:37,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:18:37,049 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 379 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:37,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 0 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:18:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2022-11-16 12:18:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 736. [2022-11-16 12:18:37,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 4.26775956284153) internal successors, (3124), 735 states have internal predecessors, (3124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 3124 transitions. [2022-11-16 12:18:37,083 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 3124 transitions. Word has length 13 [2022-11-16 12:18:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:37,083 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 3124 transitions. [2022-11-16 12:18:37,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 3124 transitions. [2022-11-16 12:18:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 12:18:37,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:37,085 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:37,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:37,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:37,300 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:37,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1826573369, now seen corresponding path program 1 times [2022-11-16 12:18:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:37,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063680796] [2022-11-16 12:18:37,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:37,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:37,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:37,303 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:37,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-16 12:18:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:37,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:18:37,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:37,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:37,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:37,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063680796] [2022-11-16 12:18:37,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063680796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:37,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:37,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:18:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757249181] [2022-11-16 12:18:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:18:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:18:37,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:18:37,633 INFO L87 Difference]: Start difference. First operand 736 states and 3124 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:37,796 INFO L93 Difference]: Finished difference Result 694 states and 2966 transitions. [2022-11-16 12:18:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:18:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 12:18:37,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:37,799 INFO L225 Difference]: With dead ends: 694 [2022-11-16 12:18:37,799 INFO L226 Difference]: Without dead ends: 694 [2022-11-16 12:18:37,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:18:37,801 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:37,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:18:37,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-11-16 12:18:37,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2022-11-16 12:18:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 692 states have (on average 4.286127167630058) internal successors, (2966), 693 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 2966 transitions. [2022-11-16 12:18:37,828 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 2966 transitions. Word has length 15 [2022-11-16 12:18:37,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:37,829 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 2966 transitions. [2022-11-16 12:18:37,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 2966 transitions. [2022-11-16 12:18:37,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 12:18:37,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:37,831 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:37,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-16 12:18:38,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:38,046 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:38,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:38,047 INFO L85 PathProgramCache]: Analyzing trace with hash -290075870, now seen corresponding path program 2 times [2022-11-16 12:18:38,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:38,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889428751] [2022-11-16 12:18:38,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:38,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:38,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:38,049 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:38,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-16 12:18:38,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:18:38,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:38,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:18:38,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:38,515 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2022-11-16 12:18:38,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2022-11-16 12:18:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:38,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:18:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:39,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:39,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889428751] [2022-11-16 12:18:39,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889428751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:18:39,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:18:39,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 11 [2022-11-16 12:18:39,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145811735] [2022-11-16 12:18:39,303 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:18:39,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:18:39,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:39,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:18:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:18:39,304 INFO L87 Difference]: Start difference. First operand 694 states and 2966 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:40,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:40,686 INFO L93 Difference]: Finished difference Result 872 states and 3316 transitions. [2022-11-16 12:18:40,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:18:40,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 12:18:40,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:40,690 INFO L225 Difference]: With dead ends: 872 [2022-11-16 12:18:40,690 INFO L226 Difference]: Without dead ends: 872 [2022-11-16 12:18:40,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:18:40,691 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:40,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 0 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:18:40,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-11-16 12:18:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 608. [2022-11-16 12:18:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 607 states have (on average 4.177924217462932) internal successors, (2536), 607 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 2536 transitions. [2022-11-16 12:18:40,716 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 2536 transitions. Word has length 15 [2022-11-16 12:18:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:40,717 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 2536 transitions. [2022-11-16 12:18:40,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 2536 transitions. [2022-11-16 12:18:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:18:40,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:40,720 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:40,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:40,936 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:40,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1980707455, now seen corresponding path program 1 times [2022-11-16 12:18:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:40,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944662395] [2022-11-16 12:18:40,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:40,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:40,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:40,938 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:40,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-16 12:18:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:41,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:41,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:43,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:43,127 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:43,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944662395] [2022-11-16 12:18:43,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944662395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:43,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:43,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:18:43,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858625341] [2022-11-16 12:18:43,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:43,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:18:43,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:43,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:43,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:43,130 INFO L87 Difference]: Start difference. First operand 608 states and 2536 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:47,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:47,306 INFO L93 Difference]: Finished difference Result 921 states and 3514 transitions. [2022-11-16 12:18:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:18:47,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:18:47,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:47,311 INFO L225 Difference]: With dead ends: 921 [2022-11-16 12:18:47,311 INFO L226 Difference]: Without dead ends: 915 [2022-11-16 12:18:47,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:18:47,312 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:47,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 50 Unchecked, 1.5s Time] [2022-11-16 12:18:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-16 12:18:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 618. [2022-11-16 12:18:47,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 617 states have (on average 4.186385737439222) internal successors, (2583), 617 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:47,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 2583 transitions. [2022-11-16 12:18:47,340 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 2583 transitions. Word has length 23 [2022-11-16 12:18:47,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:47,341 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 2583 transitions. [2022-11-16 12:18:47,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 2583 transitions. [2022-11-16 12:18:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:18:47,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:47,345 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:47,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:47,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:47,560 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1125400801, now seen corresponding path program 2 times [2022-11-16 12:18:47,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:47,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700511371] [2022-11-16 12:18:47,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:18:47,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:47,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:47,562 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:47,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-16 12:18:47,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:18:47,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:47,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:49,696 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:49,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:49,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700511371] [2022-11-16 12:18:49,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700511371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:49,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:49,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:18:49,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573854561] [2022-11-16 12:18:49,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:49,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:18:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:49,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:49,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:49,700 INFO L87 Difference]: Start difference. First operand 618 states and 2583 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:52,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:52,680 INFO L93 Difference]: Finished difference Result 917 states and 3520 transitions. [2022-11-16 12:18:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:18:52,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:18:52,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:52,684 INFO L225 Difference]: With dead ends: 917 [2022-11-16 12:18:52,684 INFO L226 Difference]: Without dead ends: 911 [2022-11-16 12:18:52,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:18:52,685 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:52,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 239 Invalid, 0 Unknown, 45 Unchecked, 1.5s Time] [2022-11-16 12:18:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-11-16 12:18:52,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 622. [2022-11-16 12:18:52,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 621 states have (on average 4.172302737520129) internal successors, (2591), 621 states have internal predecessors, (2591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:52,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 2591 transitions. [2022-11-16 12:18:52,708 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 2591 transitions. Word has length 23 [2022-11-16 12:18:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:52,708 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 2591 transitions. [2022-11-16 12:18:52,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 2591 transitions. [2022-11-16 12:18:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:18:52,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:52,712 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:52,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-16 12:18:52,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:52,927 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:52,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:52,927 INFO L85 PathProgramCache]: Analyzing trace with hash -491302459, now seen corresponding path program 3 times [2022-11-16 12:18:52,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:52,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710858549] [2022-11-16 12:18:52,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:18:52,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:52,931 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:52,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-16 12:18:53,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:18:53,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:53,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:53,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:54,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:54,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:54,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710858549] [2022-11-16 12:18:54,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710858549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:54,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:54,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:18:54,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578011835] [2022-11-16 12:18:54,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:54,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:18:54,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:54,568 INFO L87 Difference]: Start difference. First operand 622 states and 2591 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:56,366 INFO L93 Difference]: Finished difference Result 939 states and 3571 transitions. [2022-11-16 12:18:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:18:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:18:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:56,369 INFO L225 Difference]: With dead ends: 939 [2022-11-16 12:18:56,369 INFO L226 Difference]: Without dead ends: 932 [2022-11-16 12:18:56,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:18:56,370 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:56,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 210 Invalid, 0 Unknown, 80 Unchecked, 1.0s Time] [2022-11-16 12:18:56,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-16 12:18:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 625. [2022-11-16 12:18:56,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 4.169871794871795) internal successors, (2602), 624 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 2602 transitions. [2022-11-16 12:18:56,414 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 2602 transitions. Word has length 23 [2022-11-16 12:18:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:56,415 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 2602 transitions. [2022-11-16 12:18:56,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:56,415 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 2602 transitions. [2022-11-16 12:18:56,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:18:56,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:56,418 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:56,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-16 12:18:56,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:56,619 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:18:56,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:56,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2074617503, now seen corresponding path program 4 times [2022-11-16 12:18:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:18:56,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785028241] [2022-11-16 12:18:56,620 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:18:56,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:18:56,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:18:56,623 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:18:56,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-16 12:18:56,927 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:18:56,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:18:56,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:18:56,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:18:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:18:58,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:18:58,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:18:58,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785028241] [2022-11-16 12:18:58,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785028241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:58,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:58,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:18:58,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42690321] [2022-11-16 12:18:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:58,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:18:58,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:18:58,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:58,668 INFO L87 Difference]: Start difference. First operand 625 states and 2602 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:02,034 INFO L93 Difference]: Finished difference Result 938 states and 3568 transitions. [2022-11-16 12:19:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:02,040 INFO L225 Difference]: With dead ends: 938 [2022-11-16 12:19:02,040 INFO L226 Difference]: Without dead ends: 932 [2022-11-16 12:19:02,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:02,041 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:02,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 55 Unchecked, 1.7s Time] [2022-11-16 12:19:02,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-16 12:19:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 631. [2022-11-16 12:19:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 630 states have (on average 4.14920634920635) internal successors, (2614), 630 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 2614 transitions. [2022-11-16 12:19:02,067 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 2614 transitions. Word has length 23 [2022-11-16 12:19:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:02,068 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 2614 transitions. [2022-11-16 12:19:02,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 2614 transitions. [2022-11-16 12:19:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:02,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:02,071 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:02,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:02,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:02,286 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:02,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1108706693, now seen corresponding path program 5 times [2022-11-16 12:19:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:02,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575135767] [2022-11-16 12:19:02,287 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:19:02,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:02,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:02,288 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:02,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-16 12:19:02,545 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:19:02,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:02,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:02,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:04,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:04,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:04,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575135767] [2022-11-16 12:19:04,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575135767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:04,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:04,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:04,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607059766] [2022-11-16 12:19:04,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:04,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:04,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:04,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:04,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:04,100 INFO L87 Difference]: Start difference. First operand 631 states and 2614 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:06,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:06,104 INFO L93 Difference]: Finished difference Result 952 states and 3610 transitions. [2022-11-16 12:19:06,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:06,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:06,109 INFO L225 Difference]: With dead ends: 952 [2022-11-16 12:19:06,109 INFO L226 Difference]: Without dead ends: 946 [2022-11-16 12:19:06,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:06,110 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:06,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 273 Invalid, 0 Unknown, 54 Unchecked, 1.3s Time] [2022-11-16 12:19:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-11-16 12:19:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 635. [2022-11-16 12:19:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 4.152996845425868) internal successors, (2633), 634 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2633 transitions. [2022-11-16 12:19:06,131 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2633 transitions. Word has length 23 [2022-11-16 12:19:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:06,132 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 2633 transitions. [2022-11-16 12:19:06,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:06,132 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2633 transitions. [2022-11-16 12:19:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:06,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:06,135 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:06,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:06,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:06,350 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:06,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:06,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1475647295, now seen corresponding path program 6 times [2022-11-16 12:19:06,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:06,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305163962] [2022-11-16 12:19:06,352 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:19:06,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:06,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:06,353 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:06,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-16 12:19:06,573 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:19:06,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:06,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:06,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:07,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:07,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:07,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305163962] [2022-11-16 12:19:07,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305163962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:07,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:07,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:07,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600412706] [2022-11-16 12:19:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:07,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:07,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:07,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:07,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:07,422 INFO L87 Difference]: Start difference. First operand 635 states and 2633 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:08,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:08,667 INFO L93 Difference]: Finished difference Result 950 states and 3591 transitions. [2022-11-16 12:19:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:08,671 INFO L225 Difference]: With dead ends: 950 [2022-11-16 12:19:08,672 INFO L226 Difference]: Without dead ends: 937 [2022-11-16 12:19:08,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:08,672 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:08,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:19:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2022-11-16 12:19:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 635. [2022-11-16 12:19:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 4.145110410094637) internal successors, (2628), 634 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2628 transitions. [2022-11-16 12:19:08,699 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2628 transitions. Word has length 23 [2022-11-16 12:19:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:08,699 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 2628 transitions. [2022-11-16 12:19:08,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2628 transitions. [2022-11-16 12:19:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:08,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:08,702 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:08,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-11-16 12:19:08,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:08,917 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash -858964843, now seen corresponding path program 7 times [2022-11-16 12:19:08,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:08,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079042369] [2022-11-16 12:19:08,918 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:19:08,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:08,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:08,920 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:08,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-16 12:19:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:09,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:10,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:10,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:10,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079042369] [2022-11-16 12:19:10,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079042369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:10,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:10,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:10,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524653859] [2022-11-16 12:19:10,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:10,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:10,989 INFO L87 Difference]: Start difference. First operand 635 states and 2628 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:13,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:13,924 INFO L93 Difference]: Finished difference Result 931 states and 3555 transitions. [2022-11-16 12:19:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:13,927 INFO L225 Difference]: With dead ends: 931 [2022-11-16 12:19:13,928 INFO L226 Difference]: Without dead ends: 924 [2022-11-16 12:19:13,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:13,928 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:13,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 222 Invalid, 0 Unknown, 84 Unchecked, 1.3s Time] [2022-11-16 12:19:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-11-16 12:19:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 634. [2022-11-16 12:19:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 4.1469194312796205) internal successors, (2625), 633 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2625 transitions. [2022-11-16 12:19:13,945 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2625 transitions. Word has length 23 [2022-11-16 12:19:13,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:13,945 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 2625 transitions. [2022-11-16 12:19:13,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2625 transitions. [2022-11-16 12:19:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:13,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:13,948 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:13,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-16 12:19:14,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:14,163 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:14,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash 302057271, now seen corresponding path program 8 times [2022-11-16 12:19:14,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:14,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364713300] [2022-11-16 12:19:14,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:19:14,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:14,165 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:14,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-16 12:19:14,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:19:14,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:14,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:14,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:15,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:15,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:15,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364713300] [2022-11-16 12:19:15,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364713300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:15,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:15,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:15,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061901295] [2022-11-16 12:19:15,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:15,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:15,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:15,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:15,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:15,167 INFO L87 Difference]: Start difference. First operand 634 states and 2625 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:16,351 INFO L93 Difference]: Finished difference Result 943 states and 3566 transitions. [2022-11-16 12:19:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:16,354 INFO L225 Difference]: With dead ends: 943 [2022-11-16 12:19:16,354 INFO L226 Difference]: Without dead ends: 930 [2022-11-16 12:19:16,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:16,355 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:16,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:19:16,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-11-16 12:19:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 628. [2022-11-16 12:19:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 627 states have (on average 4.164274322169059) internal successors, (2611), 627 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:16,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 2611 transitions. [2022-11-16 12:19:16,381 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 2611 transitions. Word has length 23 [2022-11-16 12:19:16,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:16,381 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 2611 transitions. [2022-11-16 12:19:16,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 2611 transitions. [2022-11-16 12:19:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:16,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:16,384 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:16,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:16,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:16,600 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1684745033, now seen corresponding path program 9 times [2022-11-16 12:19:16,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:16,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024908709] [2022-11-16 12:19:16,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:19:16,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:16,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:16,603 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:16,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-16 12:19:16,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:19:16,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:16,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:16,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:18,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:18,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:18,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024908709] [2022-11-16 12:19:18,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024908709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:18,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:18,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129965816] [2022-11-16 12:19:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:18,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:18,124 INFO L87 Difference]: Start difference. First operand 628 states and 2611 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:20,242 INFO L93 Difference]: Finished difference Result 915 states and 3518 transitions. [2022-11-16 12:19:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:20,245 INFO L225 Difference]: With dead ends: 915 [2022-11-16 12:19:20,245 INFO L226 Difference]: Without dead ends: 909 [2022-11-16 12:19:20,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:19:20,246 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:20,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 42 Unchecked, 1.3s Time] [2022-11-16 12:19:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-16 12:19:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 635. [2022-11-16 12:19:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 4.157728706624606) internal successors, (2636), 634 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2636 transitions. [2022-11-16 12:19:20,270 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2636 transitions. Word has length 23 [2022-11-16 12:19:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:20,271 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 2636 transitions. [2022-11-16 12:19:20,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2636 transitions. [2022-11-16 12:19:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:20,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:20,272 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:20,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-16 12:19:20,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:20,473 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:20,474 INFO L85 PathProgramCache]: Analyzing trace with hash 881174929, now seen corresponding path program 10 times [2022-11-16 12:19:20,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:20,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304557648] [2022-11-16 12:19:20,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:19:20,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:20,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:20,475 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:20,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-16 12:19:20,726 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:19:20,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:20,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:20,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:21,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:21,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:21,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:21,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304557648] [2022-11-16 12:19:21,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304557648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:21,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:21,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:21,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984487870] [2022-11-16 12:19:21,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:21,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:21,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:21,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:21,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:21,349 INFO L87 Difference]: Start difference. First operand 635 states and 2636 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:22,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:22,817 INFO L93 Difference]: Finished difference Result 921 states and 3514 transitions. [2022-11-16 12:19:22,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:22,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:22,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:22,821 INFO L225 Difference]: With dead ends: 921 [2022-11-16 12:19:22,821 INFO L226 Difference]: Without dead ends: 908 [2022-11-16 12:19:22,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:22,822 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:22,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:19:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-11-16 12:19:22,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 632. [2022-11-16 12:19:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 631 states have (on average 4.1584786053882725) internal successors, (2624), 631 states have internal predecessors, (2624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 2624 transitions. [2022-11-16 12:19:22,845 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 2624 transitions. Word has length 23 [2022-11-16 12:19:22,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:22,846 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 2624 transitions. [2022-11-16 12:19:22,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 2624 transitions. [2022-11-16 12:19:22,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:22,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:22,849 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:22,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-11-16 12:19:23,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:23,064 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:23,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash 17562245, now seen corresponding path program 11 times [2022-11-16 12:19:23,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:23,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335812154] [2022-11-16 12:19:23,065 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:19:23,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:23,067 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:23,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-16 12:19:23,325 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:19:23,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:23,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:23,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:23,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:23,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:23,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335812154] [2022-11-16 12:19:23,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335812154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:23,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:23,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:23,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30818483] [2022-11-16 12:19:23,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:23,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:23,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:23,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:23,854 INFO L87 Difference]: Start difference. First operand 632 states and 2624 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:25,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:25,082 INFO L93 Difference]: Finished difference Result 943 states and 3559 transitions. [2022-11-16 12:19:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:25,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:25,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:25,086 INFO L225 Difference]: With dead ends: 943 [2022-11-16 12:19:25,086 INFO L226 Difference]: Without dead ends: 922 [2022-11-16 12:19:25,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:25,087 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:25,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 0 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:19:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-11-16 12:19:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 632. [2022-11-16 12:19:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 631 states have (on average 4.152139461172742) internal successors, (2620), 631 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:25,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 2620 transitions. [2022-11-16 12:19:25,106 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 2620 transitions. Word has length 23 [2022-11-16 12:19:25,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:25,107 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 2620 transitions. [2022-11-16 12:19:25,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:25,107 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 2620 transitions. [2022-11-16 12:19:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:25,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:25,110 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:25,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:25,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:25,325 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1526205077, now seen corresponding path program 12 times [2022-11-16 12:19:25,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767628119] [2022-11-16 12:19:25,327 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:19:25,327 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:25,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:25,328 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:25,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-16 12:19:25,555 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:19:25,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:25,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:25,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:26,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:26,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767628119] [2022-11-16 12:19:26,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767628119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:26,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:26,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980228362] [2022-11-16 12:19:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:26,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:26,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:26,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:26,902 INFO L87 Difference]: Start difference. First operand 632 states and 2620 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:29,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:29,064 INFO L93 Difference]: Finished difference Result 983 states and 3715 transitions. [2022-11-16 12:19:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:29,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:29,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:29,068 INFO L225 Difference]: With dead ends: 983 [2022-11-16 12:19:29,068 INFO L226 Difference]: Without dead ends: 977 [2022-11-16 12:19:29,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:19:29,069 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:29,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 272 Invalid, 0 Unknown, 49 Unchecked, 1.4s Time] [2022-11-16 12:19:29,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2022-11-16 12:19:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 643. [2022-11-16 12:19:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 642 states have (on average 4.14797507788162) internal successors, (2663), 642 states have internal predecessors, (2663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:29,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 2663 transitions. [2022-11-16 12:19:29,086 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 2663 transitions. Word has length 23 [2022-11-16 12:19:29,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:29,087 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 2663 transitions. [2022-11-16 12:19:29,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 2663 transitions. [2022-11-16 12:19:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:29,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:29,089 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:29,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:29,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:29,295 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:29,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1058148911, now seen corresponding path program 13 times [2022-11-16 12:19:29,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:29,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207163204] [2022-11-16 12:19:29,296 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:19:29,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:29,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:29,297 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:29,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-16 12:19:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:29,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:29,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:30,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:30,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:30,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207163204] [2022-11-16 12:19:30,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207163204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:30,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:30,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:30,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713210649] [2022-11-16 12:19:30,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:30,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:30,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:30,203 INFO L87 Difference]: Start difference. First operand 643 states and 2663 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:31,476 INFO L93 Difference]: Finished difference Result 991 states and 3710 transitions. [2022-11-16 12:19:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:31,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:31,479 INFO L225 Difference]: With dead ends: 991 [2022-11-16 12:19:31,480 INFO L226 Difference]: Without dead ends: 978 [2022-11-16 12:19:31,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:31,480 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 83 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:31,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 0 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:19:31,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-11-16 12:19:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 638. [2022-11-16 12:19:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 4.145996860282574) internal successors, (2641), 637 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 2641 transitions. [2022-11-16 12:19:31,497 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 2641 transitions. Word has length 23 [2022-11-16 12:19:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:31,497 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 2641 transitions. [2022-11-16 12:19:31,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 2641 transitions. [2022-11-16 12:19:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:31,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:31,500 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:31,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-11-16 12:19:31,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:31,713 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1628503203, now seen corresponding path program 14 times [2022-11-16 12:19:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:31,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97767736] [2022-11-16 12:19:31,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:19:31,713 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:31,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:31,714 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:31,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-16 12:19:32,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:19:32,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:32,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:32,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:32,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:32,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:32,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97767736] [2022-11-16 12:19:32,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97767736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:32,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:32,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:32,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040957017] [2022-11-16 12:19:32,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:32,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:32,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:32,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:32,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:32,562 INFO L87 Difference]: Start difference. First operand 638 states and 2641 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:33,767 INFO L93 Difference]: Finished difference Result 1001 states and 3728 transitions. [2022-11-16 12:19:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:33,767 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:33,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:33,771 INFO L225 Difference]: With dead ends: 1001 [2022-11-16 12:19:33,771 INFO L226 Difference]: Without dead ends: 980 [2022-11-16 12:19:33,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:33,772 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:33,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:19:33,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-11-16 12:19:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 638. [2022-11-16 12:19:33,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 637 states have (on average 4.136577708006279) internal successors, (2635), 637 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 2635 transitions. [2022-11-16 12:19:33,788 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 2635 transitions. Word has length 23 [2022-11-16 12:19:33,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:33,789 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 2635 transitions. [2022-11-16 12:19:33,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 2635 transitions. [2022-11-16 12:19:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:33,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:33,791 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:33,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:34,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:34,006 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:34,007 INFO L85 PathProgramCache]: Analyzing trace with hash -973639031, now seen corresponding path program 15 times [2022-11-16 12:19:34,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:34,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618505779] [2022-11-16 12:19:34,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:19:34,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:34,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:34,009 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:34,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-16 12:19:34,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:19:34,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:34,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:34,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:35,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:35,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:35,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618505779] [2022-11-16 12:19:35,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618505779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:35,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:35,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:35,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451144449] [2022-11-16 12:19:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:35,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:35,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:35,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:35,490 INFO L87 Difference]: Start difference. First operand 638 states and 2635 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:37,696 INFO L93 Difference]: Finished difference Result 915 states and 3510 transitions. [2022-11-16 12:19:37,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:19:37,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:37,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:37,699 INFO L225 Difference]: With dead ends: 915 [2022-11-16 12:19:37,699 INFO L226 Difference]: Without dead ends: 909 [2022-11-16 12:19:37,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:19:37,700 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:37,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 0 Unknown, 65 Unchecked, 1.0s Time] [2022-11-16 12:19:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2022-11-16 12:19:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 645. [2022-11-16 12:19:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 4.138198757763975) internal successors, (2665), 644 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 2665 transitions. [2022-11-16 12:19:37,711 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 2665 transitions. Word has length 23 [2022-11-16 12:19:37,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:37,712 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 2665 transitions. [2022-11-16 12:19:37,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 2665 transitions. [2022-11-16 12:19:37,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:37,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:37,713 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:37,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:37,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:37,914 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:37,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -118332377, now seen corresponding path program 16 times [2022-11-16 12:19:37,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:37,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675765183] [2022-11-16 12:19:37,915 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:19:37,915 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:37,916 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:37,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-16 12:19:38,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:19:38,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:38,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:38,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:38,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:38,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:38,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675765183] [2022-11-16 12:19:38,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675765183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:38,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:38,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:38,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147433100] [2022-11-16 12:19:38,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:38,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:38,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:38,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:38,718 INFO L87 Difference]: Start difference. First operand 645 states and 2665 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:39,973 INFO L93 Difference]: Finished difference Result 915 states and 3505 transitions. [2022-11-16 12:19:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:39,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:39,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:39,977 INFO L225 Difference]: With dead ends: 915 [2022-11-16 12:19:39,977 INFO L226 Difference]: Without dead ends: 904 [2022-11-16 12:19:39,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:39,978 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:39,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:19:39,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-11-16 12:19:39,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 644. [2022-11-16 12:19:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 4.136858475894246) internal successors, (2660), 643 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:39,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 2660 transitions. [2022-11-16 12:19:39,999 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 2660 transitions. Word has length 23 [2022-11-16 12:19:39,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:39,999 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 2660 transitions. [2022-11-16 12:19:40,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 2660 transitions. [2022-11-16 12:19:40,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:40,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:40,002 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:40,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:40,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:40,228 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:40,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:40,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1674935829, now seen corresponding path program 17 times [2022-11-16 12:19:40,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:40,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373140496] [2022-11-16 12:19:40,229 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:19:40,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:40,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:40,232 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:40,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-16 12:19:40,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:19:40,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:40,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:40,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:40,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:40,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:40,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373140496] [2022-11-16 12:19:40,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373140496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:40,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:40,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:40,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700886806] [2022-11-16 12:19:40,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:40,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:40,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:40,861 INFO L87 Difference]: Start difference. First operand 644 states and 2660 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:41,812 INFO L93 Difference]: Finished difference Result 933 states and 3542 transitions. [2022-11-16 12:19:41,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:41,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:41,816 INFO L225 Difference]: With dead ends: 933 [2022-11-16 12:19:41,816 INFO L226 Difference]: Without dead ends: 918 [2022-11-16 12:19:41,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:41,817 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:41,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 0 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:19:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-11-16 12:19:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 644. [2022-11-16 12:19:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 643 states have (on average 4.133748055987558) internal successors, (2658), 643 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 2658 transitions. [2022-11-16 12:19:41,855 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 2658 transitions. Word has length 23 [2022-11-16 12:19:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:41,855 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 2658 transitions. [2022-11-16 12:19:41,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 2658 transitions. [2022-11-16 12:19:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:41,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:41,858 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:41,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:42,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:42,071 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 574283303, now seen corresponding path program 18 times [2022-11-16 12:19:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056390861] [2022-11-16 12:19:42,072 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:19:42,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:42,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:42,073 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:42,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-16 12:19:42,282 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:19:42,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:42,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:42,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:43,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:43,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:43,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056390861] [2022-11-16 12:19:43,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056390861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:43,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:43,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:43,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128277309] [2022-11-16 12:19:43,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:43,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:43,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:43,760 INFO L87 Difference]: Start difference. First operand 644 states and 2658 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:45,501 INFO L93 Difference]: Finished difference Result 945 states and 3601 transitions. [2022-11-16 12:19:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:45,505 INFO L225 Difference]: With dead ends: 945 [2022-11-16 12:19:45,505 INFO L226 Difference]: Without dead ends: 938 [2022-11-16 12:19:45,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:45,506 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:45,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 80 Unchecked, 1.0s Time] [2022-11-16 12:19:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-11-16 12:19:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 648. [2022-11-16 12:19:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 4.142194744976816) internal successors, (2680), 647 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 2680 transitions. [2022-11-16 12:19:45,521 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 2680 transitions. Word has length 23 [2022-11-16 12:19:45,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:45,521 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 2680 transitions. [2022-11-16 12:19:45,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 2680 transitions. [2022-11-16 12:19:45,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:45,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:45,523 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:45,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Ended with exit code 0 [2022-11-16 12:19:45,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:45,727 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:45,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1429589957, now seen corresponding path program 19 times [2022-11-16 12:19:45,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:45,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544400522] [2022-11-16 12:19:45,728 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:19:45,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:45,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:45,729 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:45,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-16 12:19:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:45,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:45,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:46,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:46,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:46,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544400522] [2022-11-16 12:19:46,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544400522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:46,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:46,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:46,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410301334] [2022-11-16 12:19:46,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:46,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:46,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:46,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:46,596 INFO L87 Difference]: Start difference. First operand 648 states and 2680 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:47,532 INFO L93 Difference]: Finished difference Result 947 states and 3593 transitions. [2022-11-16 12:19:47,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:47,533 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:47,535 INFO L225 Difference]: With dead ends: 947 [2022-11-16 12:19:47,535 INFO L226 Difference]: Without dead ends: 936 [2022-11-16 12:19:47,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:47,536 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:47,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 0 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:19:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-11-16 12:19:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 648. [2022-11-16 12:19:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 4.142194744976816) internal successors, (2680), 647 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 2680 transitions. [2022-11-16 12:19:47,565 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 2680 transitions. Word has length 23 [2022-11-16 12:19:47,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:47,565 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 2680 transitions. [2022-11-16 12:19:47,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:47,566 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 2680 transitions. [2022-11-16 12:19:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:47,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:47,568 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:47,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-11-16 12:19:47,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:47,768 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 334640965, now seen corresponding path program 20 times [2022-11-16 12:19:47,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:47,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011845987] [2022-11-16 12:19:47,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:19:47,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:47,770 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:47,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-16 12:19:47,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:19:47,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:47,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:47,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:49,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:49,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:49,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011845987] [2022-11-16 12:19:49,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011845987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:49,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:49,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:49,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251867344] [2022-11-16 12:19:49,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:49,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:49,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:49,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:49,347 INFO L87 Difference]: Start difference. First operand 648 states and 2680 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:52,244 INFO L93 Difference]: Finished difference Result 930 states and 3570 transitions. [2022-11-16 12:19:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:52,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:52,248 INFO L225 Difference]: With dead ends: 930 [2022-11-16 12:19:52,248 INFO L226 Difference]: Without dead ends: 924 [2022-11-16 12:19:52,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:52,249 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:52,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 76 Unchecked, 1.5s Time] [2022-11-16 12:19:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-11-16 12:19:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 654. [2022-11-16 12:19:52,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 4.122511485451761) internal successors, (2692), 653 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 2692 transitions. [2022-11-16 12:19:52,264 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 2692 transitions. Word has length 23 [2022-11-16 12:19:52,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:52,265 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 2692 transitions. [2022-11-16 12:19:52,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:52,265 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 2692 transitions. [2022-11-16 12:19:52,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:52,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:52,267 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:52,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:52,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:52,467 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:52,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:52,468 INFO L85 PathProgramCache]: Analyzing trace with hash -631269845, now seen corresponding path program 21 times [2022-11-16 12:19:52,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:52,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528666699] [2022-11-16 12:19:52,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:19:52,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:52,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:52,470 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:52,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-16 12:19:52,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:19:52,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:52,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:52,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:53,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:53,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:53,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528666699] [2022-11-16 12:19:53,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528666699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:53,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:53,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:53,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387412049] [2022-11-16 12:19:53,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:53,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:53,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:53,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:53,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:53,302 INFO L87 Difference]: Start difference. First operand 654 states and 2692 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:54,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:54,342 INFO L93 Difference]: Finished difference Result 945 states and 3606 transitions. [2022-11-16 12:19:54,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:54,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:54,344 INFO L225 Difference]: With dead ends: 945 [2022-11-16 12:19:54,345 INFO L226 Difference]: Without dead ends: 934 [2022-11-16 12:19:54,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:54,345 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:54,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:19:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-16 12:19:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 658. [2022-11-16 12:19:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 657 states have (on average 4.1187214611872145) internal successors, (2706), 657 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:54,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 2706 transitions. [2022-11-16 12:19:54,365 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 2706 transitions. Word has length 23 [2022-11-16 12:19:54,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:54,365 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 2706 transitions. [2022-11-16 12:19:54,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 2706 transitions. [2022-11-16 12:19:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:54,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:54,366 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:54,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (53)] Ended with exit code 0 [2022-11-16 12:19:54,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:54,567 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:54,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:54,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1137080251, now seen corresponding path program 22 times [2022-11-16 12:19:54,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:54,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412371336] [2022-11-16 12:19:54,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:19:54,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:54,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:54,569 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:54,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-16 12:19:54,825 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:19:54,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:54,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:54,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:55,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:55,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:55,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412371336] [2022-11-16 12:19:55,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412371336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:55,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:55,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:55,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210173004] [2022-11-16 12:19:55,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:55,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:55,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:55,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:55,259 INFO L87 Difference]: Start difference. First operand 658 states and 2706 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:56,405 INFO L93 Difference]: Finished difference Result 1005 states and 3761 transitions. [2022-11-16 12:19:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:56,408 INFO L225 Difference]: With dead ends: 1005 [2022-11-16 12:19:56,408 INFO L226 Difference]: Without dead ends: 990 [2022-11-16 12:19:56,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:56,408 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:56,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:19:56,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-16 12:19:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 662. [2022-11-16 12:19:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 4.110438729198185) internal successors, (2717), 661 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:56,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2717 transitions. [2022-11-16 12:19:56,424 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2717 transitions. Word has length 23 [2022-11-16 12:19:56,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:56,425 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 2717 transitions. [2022-11-16 12:19:56,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:56,425 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2717 transitions. [2022-11-16 12:19:56,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:56,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:56,426 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:56,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2022-11-16 12:19:56,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:56,627 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:56,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:56,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1641336601, now seen corresponding path program 23 times [2022-11-16 12:19:56,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:56,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978103526] [2022-11-16 12:19:56,628 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:19:56,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:56,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:56,629 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:56,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-16 12:19:56,874 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:19:56,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:56,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:56,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:57,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:57,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:57,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978103526] [2022-11-16 12:19:57,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978103526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:57,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:57,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:57,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204799320] [2022-11-16 12:19:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:57,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:57,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:57,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:57,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:57,372 INFO L87 Difference]: Start difference. First operand 662 states and 2717 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:58,708 INFO L93 Difference]: Finished difference Result 983 states and 3732 transitions. [2022-11-16 12:19:58,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:58,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:19:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:58,711 INFO L225 Difference]: With dead ends: 983 [2022-11-16 12:19:58,711 INFO L226 Difference]: Without dead ends: 972 [2022-11-16 12:19:58,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:19:58,712 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:58,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:19:58,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-11-16 12:19:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 662. [2022-11-16 12:19:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 4.110438729198185) internal successors, (2717), 661 states have internal predecessors, (2717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 2717 transitions. [2022-11-16 12:19:58,727 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 2717 transitions. Word has length 23 [2022-11-16 12:19:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:58,727 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 2717 transitions. [2022-11-16 12:19:58,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 2717 transitions. [2022-11-16 12:19:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:19:58,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:58,729 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:58,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-16 12:19:58,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:58,930 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:19:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1079532235, now seen corresponding path program 24 times [2022-11-16 12:19:58,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:19:58,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348099727] [2022-11-16 12:19:58,931 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:19:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:19:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:19:58,932 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:19:58,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-16 12:19:59,201 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:19:59,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:59,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:19:59,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:19:59,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:59,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:19:59,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348099727] [2022-11-16 12:19:59,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348099727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:59,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:59,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:59,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895239703] [2022-11-16 12:19:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:59,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:59,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:19:59,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:59,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:59,532 INFO L87 Difference]: Start difference. First operand 662 states and 2717 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:00,519 INFO L93 Difference]: Finished difference Result 907 states and 3462 transitions. [2022-11-16 12:20:00,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:00,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:00,522 INFO L225 Difference]: With dead ends: 907 [2022-11-16 12:20:00,522 INFO L226 Difference]: Without dead ends: 892 [2022-11-16 12:20:00,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:00,523 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:00,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:00,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2022-11-16 12:20:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 674. [2022-11-16 12:20:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 4.078751857355126) internal successors, (2745), 673 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 2745 transitions. [2022-11-16 12:20:00,542 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 2745 transitions. Word has length 23 [2022-11-16 12:20:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:00,543 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 2745 transitions. [2022-11-16 12:20:00,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 2745 transitions. [2022-11-16 12:20:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:00,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:00,544 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:00,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (56)] Ended with exit code 0 [2022-11-16 12:20:00,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:00,745 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1583788585, now seen corresponding path program 25 times [2022-11-16 12:20:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:00,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763025957] [2022-11-16 12:20:00,745 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:20:00,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:00,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:00,747 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:00,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-16 12:20:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:00,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:00,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:01,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:01,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:01,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763025957] [2022-11-16 12:20:01,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763025957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:01,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:01,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:01,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207842869] [2022-11-16 12:20:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:01,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:01,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:01,358 INFO L87 Difference]: Start difference. First operand 674 states and 2745 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:02,409 INFO L93 Difference]: Finished difference Result 913 states and 3487 transitions. [2022-11-16 12:20:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:02,412 INFO L225 Difference]: With dead ends: 913 [2022-11-16 12:20:02,412 INFO L226 Difference]: Without dead ends: 902 [2022-11-16 12:20:02,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:02,413 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:02,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:20:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-11-16 12:20:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 670. [2022-11-16 12:20:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 4.086696562032885) internal successors, (2734), 669 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2734 transitions. [2022-11-16 12:20:02,431 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2734 transitions. Word has length 23 [2022-11-16 12:20:02,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:02,431 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2734 transitions. [2022-11-16 12:20:02,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2734 transitions. [2022-11-16 12:20:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:02,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:02,433 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:02,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:02,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:02,634 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1575911257, now seen corresponding path program 26 times [2022-11-16 12:20:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:02,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394063960] [2022-11-16 12:20:02,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:20:02,635 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:02,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:02,636 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:02,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-16 12:20:02,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:20:02,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:02,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:02,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:03,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:03,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:03,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394063960] [2022-11-16 12:20:03,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394063960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:03,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:03,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:03,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612411129] [2022-11-16 12:20:03,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:03,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:03,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:03,903 INFO L87 Difference]: Start difference. First operand 670 states and 2734 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:05,598 INFO L93 Difference]: Finished difference Result 939 states and 3555 transitions. [2022-11-16 12:20:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:05,602 INFO L225 Difference]: With dead ends: 939 [2022-11-16 12:20:05,602 INFO L226 Difference]: Without dead ends: 933 [2022-11-16 12:20:05,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:20:05,602 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:05,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 219 Invalid, 0 Unknown, 79 Unchecked, 1.0s Time] [2022-11-16 12:20:05,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-11-16 12:20:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 681. [2022-11-16 12:20:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 680 states have (on average 4.083823529411765) internal successors, (2777), 680 states have internal predecessors, (2777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:05,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 2777 transitions. [2022-11-16 12:20:05,625 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 2777 transitions. Word has length 23 [2022-11-16 12:20:05,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:05,626 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 2777 transitions. [2022-11-16 12:20:05,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 2777 transitions. [2022-11-16 12:20:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:05,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:05,629 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:05,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (58)] Ended with exit code 0 [2022-11-16 12:20:05,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:05,835 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash 134702051, now seen corresponding path program 27 times [2022-11-16 12:20:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:05,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114588271] [2022-11-16 12:20:05,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:20:05,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:05,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:05,838 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:05,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-16 12:20:06,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:20:06,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:06,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:06,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:06,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:06,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:06,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114588271] [2022-11-16 12:20:06,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114588271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:06,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:06,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930889675] [2022-11-16 12:20:06,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:06,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:06,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:06,480 INFO L87 Difference]: Start difference. First operand 681 states and 2777 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:07,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:07,658 INFO L93 Difference]: Finished difference Result 945 states and 3549 transitions. [2022-11-16 12:20:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:07,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:07,667 INFO L225 Difference]: With dead ends: 945 [2022-11-16 12:20:07,667 INFO L226 Difference]: Without dead ends: 932 [2022-11-16 12:20:07,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:07,667 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:07,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:07,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-16 12:20:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 676. [2022-11-16 12:20:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 675 states have (on average 4.0814814814814815) internal successors, (2755), 675 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 2755 transitions. [2022-11-16 12:20:07,692 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 2755 transitions. Word has length 23 [2022-11-16 12:20:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:07,692 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 2755 transitions. [2022-11-16 12:20:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 2755 transitions. [2022-11-16 12:20:07,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:07,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:07,694 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:07,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (59)] Ended with exit code 0 [2022-11-16 12:20:07,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:07,895 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1473613131, now seen corresponding path program 28 times [2022-11-16 12:20:07,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:07,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489440603] [2022-11-16 12:20:07,896 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:20:07,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:07,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:07,897 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:07,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-16 12:20:08,151 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:20:08,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:08,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:08,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:08,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:08,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:08,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489440603] [2022-11-16 12:20:08,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489440603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:08,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:08,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444015771] [2022-11-16 12:20:08,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:08,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:08,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:08,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:08,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:08,444 INFO L87 Difference]: Start difference. First operand 676 states and 2755 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:09,545 INFO L93 Difference]: Finished difference Result 931 states and 3520 transitions. [2022-11-16 12:20:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:09,548 INFO L225 Difference]: With dead ends: 931 [2022-11-16 12:20:09,548 INFO L226 Difference]: Without dead ends: 910 [2022-11-16 12:20:09,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:09,549 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:09,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-11-16 12:20:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 670. [2022-11-16 12:20:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 4.086696562032885) internal successors, (2734), 669 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2734 transitions. [2022-11-16 12:20:09,567 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2734 transitions. Word has length 23 [2022-11-16 12:20:09,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:09,567 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2734 transitions. [2022-11-16 12:20:09,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2734 transitions. [2022-11-16 12:20:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:09,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:09,570 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:09,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:09,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:09,783 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:09,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:09,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2102104223, now seen corresponding path program 29 times [2022-11-16 12:20:09,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:09,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900482307] [2022-11-16 12:20:09,784 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:20:09,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:09,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:09,786 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:09,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-16 12:20:10,074 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:20:10,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:10,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:10,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:11,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:11,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:11,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900482307] [2022-11-16 12:20:11,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900482307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:11,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:11,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:11,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834252356] [2022-11-16 12:20:11,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:11,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:11,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:11,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:11,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:11,618 INFO L87 Difference]: Start difference. First operand 670 states and 2734 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:15,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:15,032 INFO L93 Difference]: Finished difference Result 905 states and 3436 transitions. [2022-11-16 12:20:15,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:20:15,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:15,035 INFO L225 Difference]: With dead ends: 905 [2022-11-16 12:20:15,035 INFO L226 Difference]: Without dead ends: 899 [2022-11-16 12:20:15,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:20:15,047 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:15,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 205 Invalid, 0 Unknown, 54 Unchecked, 1.1s Time] [2022-11-16 12:20:15,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-11-16 12:20:15,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 675. [2022-11-16 12:20:15,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 4.093471810089021) internal successors, (2759), 674 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 2759 transitions. [2022-11-16 12:20:15,079 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 2759 transitions. Word has length 23 [2022-11-16 12:20:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:15,079 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 2759 transitions. [2022-11-16 12:20:15,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 2759 transitions. [2022-11-16 12:20:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:15,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:15,081 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:15,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-11-16 12:20:15,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:15,281 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1337556419, now seen corresponding path program 30 times [2022-11-16 12:20:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:15,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610498570] [2022-11-16 12:20:15,282 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:20:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:15,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:15,283 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:15,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-16 12:20:15,538 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:20:15,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:15,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:15,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:17,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:17,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:17,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610498570] [2022-11-16 12:20:17,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610498570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:17,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:17,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:17,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871656001] [2022-11-16 12:20:17,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:17,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:17,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:17,037 INFO L87 Difference]: Start difference. First operand 675 states and 2759 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:19,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:19,692 INFO L93 Difference]: Finished difference Result 909 states and 3446 transitions. [2022-11-16 12:20:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:19,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:19,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:19,694 INFO L225 Difference]: With dead ends: 909 [2022-11-16 12:20:19,695 INFO L226 Difference]: Without dead ends: 903 [2022-11-16 12:20:19,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:19,695 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:19,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 221 Invalid, 0 Unknown, 33 Unchecked, 1.1s Time] [2022-11-16 12:20:19,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-11-16 12:20:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 675. [2022-11-16 12:20:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 4.091988130563799) internal successors, (2758), 674 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:19,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 2758 transitions. [2022-11-16 12:20:19,709 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 2758 transitions. Word has length 23 [2022-11-16 12:20:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:19,709 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 2758 transitions. [2022-11-16 12:20:19,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 2758 transitions. [2022-11-16 12:20:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:19,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:19,716 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:19,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (62)] Ended with exit code 0 [2022-11-16 12:20:19,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:19,917 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:19,917 INFO L85 PathProgramCache]: Analyzing trace with hash -703458077, now seen corresponding path program 31 times [2022-11-16 12:20:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:19,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629720211] [2022-11-16 12:20:19,918 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:20:19,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:19,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:19,919 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:19,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-16 12:20:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:20,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:20,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:21,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:21,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:21,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629720211] [2022-11-16 12:20:21,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629720211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:21,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:21,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:21,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588045199] [2022-11-16 12:20:21,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:21,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:21,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:21,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:21,381 INFO L87 Difference]: Start difference. First operand 675 states and 2758 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:23,288 INFO L93 Difference]: Finished difference Result 931 states and 3497 transitions. [2022-11-16 12:20:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:23,293 INFO L225 Difference]: With dead ends: 931 [2022-11-16 12:20:23,293 INFO L226 Difference]: Without dead ends: 925 [2022-11-16 12:20:23,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:23,293 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:23,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 243 Invalid, 0 Unknown, 46 Unchecked, 1.2s Time] [2022-11-16 12:20:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-11-16 12:20:23,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 677. [2022-11-16 12:20:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 4.09319526627219) internal successors, (2767), 676 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 2767 transitions. [2022-11-16 12:20:23,319 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 2767 transitions. Word has length 23 [2022-11-16 12:20:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:23,320 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 2767 transitions. [2022-11-16 12:20:23,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 2767 transitions. [2022-11-16 12:20:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:23,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:23,323 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:23,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:23,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:23,539 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1862461885, now seen corresponding path program 32 times [2022-11-16 12:20:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:23,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193700073] [2022-11-16 12:20:23,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:20:23,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:23,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:23,544 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:23,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-16 12:20:23,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:20:23,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:23,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:23,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:24,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:24,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:24,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193700073] [2022-11-16 12:20:24,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193700073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771744206] [2022-11-16 12:20:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:24,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:24,566 INFO L87 Difference]: Start difference. First operand 677 states and 2767 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:25,717 INFO L93 Difference]: Finished difference Result 931 states and 3484 transitions. [2022-11-16 12:20:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:25,720 INFO L225 Difference]: With dead ends: 931 [2022-11-16 12:20:25,720 INFO L226 Difference]: Without dead ends: 918 [2022-11-16 12:20:25,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:20:25,721 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:25,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:20:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-11-16 12:20:25,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 674. [2022-11-16 12:20:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 4.093610698365527) internal successors, (2755), 673 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 2755 transitions. [2022-11-16 12:20:25,739 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 2755 transitions. Word has length 23 [2022-11-16 12:20:25,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:25,740 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 2755 transitions. [2022-11-16 12:20:25,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,740 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 2755 transitions. [2022-11-16 12:20:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:25,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:25,742 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:25,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:25,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:25,955 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash 896551075, now seen corresponding path program 33 times [2022-11-16 12:20:25,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:25,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461160860] [2022-11-16 12:20:25,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:20:25,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:25,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:25,958 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:25,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-16 12:20:26,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:20:26,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:26,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:26,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:27,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:27,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:27,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461160860] [2022-11-16 12:20:27,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461160860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:27,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:27,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:27,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641117858] [2022-11-16 12:20:27,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:27,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:27,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:27,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:27,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:27,476 INFO L87 Difference]: Start difference. First operand 674 states and 2755 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:29,113 INFO L93 Difference]: Finished difference Result 937 states and 3519 transitions. [2022-11-16 12:20:29,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:29,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:29,117 INFO L225 Difference]: With dead ends: 937 [2022-11-16 12:20:29,117 INFO L226 Difference]: Without dead ends: 931 [2022-11-16 12:20:29,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:29,118 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:29,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 195 Invalid, 0 Unknown, 35 Unchecked, 1.0s Time] [2022-11-16 12:20:29,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-11-16 12:20:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 678. [2022-11-16 12:20:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 677 states have (on average 4.097488921713442) internal successors, (2774), 677 states have internal predecessors, (2774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 2774 transitions. [2022-11-16 12:20:29,189 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 2774 transitions. Word has length 23 [2022-11-16 12:20:29,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:29,190 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 2774 transitions. [2022-11-16 12:20:29,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 2774 transitions. [2022-11-16 12:20:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:29,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:29,192 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:29,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:29,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:29,407 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:29,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:29,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1687802913, now seen corresponding path program 34 times [2022-11-16 12:20:29,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:29,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355708794] [2022-11-16 12:20:29,408 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:20:29,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:29,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:29,409 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:29,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-16 12:20:29,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:20:29,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:29,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:29,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:30,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:30,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:30,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355708794] [2022-11-16 12:20:30,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355708794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:30,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:30,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:30,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300769232] [2022-11-16 12:20:30,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:30,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:30,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:30,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:30,419 INFO L87 Difference]: Start difference. First operand 678 states and 2774 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:31,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:31,399 INFO L93 Difference]: Finished difference Result 935 states and 3500 transitions. [2022-11-16 12:20:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:31,402 INFO L225 Difference]: With dead ends: 935 [2022-11-16 12:20:31,402 INFO L226 Difference]: Without dead ends: 922 [2022-11-16 12:20:31,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:20:31,403 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:31,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:31,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-11-16 12:20:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 670. [2022-11-16 12:20:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 4.086696562032885) internal successors, (2734), 669 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:31,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2734 transitions. [2022-11-16 12:20:31,416 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2734 transitions. Word has length 23 [2022-11-16 12:20:31,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:31,416 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2734 transitions. [2022-11-16 12:20:31,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:31,417 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2734 transitions. [2022-11-16 12:20:31,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:31,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:31,419 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:31,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (66)] Ended with exit code 0 [2022-11-16 12:20:31,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:31,619 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1896900651, now seen corresponding path program 35 times [2022-11-16 12:20:31,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:31,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340694117] [2022-11-16 12:20:31,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:20:31,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:31,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:31,621 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:31,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-16 12:20:31,887 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:20:31,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:31,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:31,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:32,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:32,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:32,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340694117] [2022-11-16 12:20:32,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340694117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:32,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:32,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:32,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138809675] [2022-11-16 12:20:32,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:32,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:32,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:32,932 INFO L87 Difference]: Start difference. First operand 670 states and 2734 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:34,761 INFO L93 Difference]: Finished difference Result 959 states and 3577 transitions. [2022-11-16 12:20:34,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:34,762 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:34,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:34,764 INFO L225 Difference]: With dead ends: 959 [2022-11-16 12:20:34,764 INFO L226 Difference]: Without dead ends: 953 [2022-11-16 12:20:34,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:34,765 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:34,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 237 Invalid, 0 Unknown, 45 Unchecked, 1.1s Time] [2022-11-16 12:20:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-11-16 12:20:34,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 677. [2022-11-16 12:20:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 676 states have (on average 4.081360946745562) internal successors, (2759), 676 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 2759 transitions. [2022-11-16 12:20:34,780 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 2759 transitions. Word has length 23 [2022-11-16 12:20:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:34,780 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 2759 transitions. [2022-11-16 12:20:34,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:34,780 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 2759 transitions. [2022-11-16 12:20:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:34,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:34,781 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:34,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (67)] Ended with exit code 0 [2022-11-16 12:20:34,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:34,982 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:34,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash 669019311, now seen corresponding path program 36 times [2022-11-16 12:20:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:34,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236112383] [2022-11-16 12:20:34,983 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:20:34,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:34,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:34,984 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:34,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-16 12:20:35,237 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:20:35,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:35,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:35,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:35,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:35,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:35,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236112383] [2022-11-16 12:20:35,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236112383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:35,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:35,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95672419] [2022-11-16 12:20:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:35,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:35,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:35,848 INFO L87 Difference]: Start difference. First operand 677 states and 2759 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:37,235 INFO L93 Difference]: Finished difference Result 967 states and 3574 transitions. [2022-11-16 12:20:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:37,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:37,238 INFO L225 Difference]: With dead ends: 967 [2022-11-16 12:20:37,238 INFO L226 Difference]: Without dead ends: 954 [2022-11-16 12:20:37,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:37,239 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:37,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:20:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-11-16 12:20:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 674. [2022-11-16 12:20:37,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 673 states have (on average 4.081723625557206) internal successors, (2747), 673 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:37,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 2747 transitions. [2022-11-16 12:20:37,260 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 2747 transitions. Word has length 23 [2022-11-16 12:20:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:37,260 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 2747 transitions. [2022-11-16 12:20:37,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 2747 transitions. [2022-11-16 12:20:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:37,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:37,281 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:37,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:37,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:37,481 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:37,482 INFO L85 PathProgramCache]: Analyzing trace with hash -194593373, now seen corresponding path program 37 times [2022-11-16 12:20:37,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:37,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531675770] [2022-11-16 12:20:37,482 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:20:37,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:37,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:37,483 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:37,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-16 12:20:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:37,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:37,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:38,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:38,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:38,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531675770] [2022-11-16 12:20:38,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531675770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:38,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:38,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:38,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830963052] [2022-11-16 12:20:38,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:38,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:38,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:38,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:38,225 INFO L87 Difference]: Start difference. First operand 674 states and 2747 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:39,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:39,476 INFO L93 Difference]: Finished difference Result 989 states and 3619 transitions. [2022-11-16 12:20:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:39,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:39,479 INFO L225 Difference]: With dead ends: 989 [2022-11-16 12:20:39,479 INFO L226 Difference]: Without dead ends: 968 [2022-11-16 12:20:39,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:39,479 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:39,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:20:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-11-16 12:20:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 670. [2022-11-16 12:20:39,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 669 states have (on average 4.086696562032885) internal successors, (2734), 669 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2734 transitions. [2022-11-16 12:20:39,512 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2734 transitions. Word has length 23 [2022-11-16 12:20:39,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:39,512 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2734 transitions. [2022-11-16 12:20:39,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2734 transitions. [2022-11-16 12:20:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:39,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:39,514 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:39,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-16 12:20:39,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:39,715 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1314049459, now seen corresponding path program 38 times [2022-11-16 12:20:39,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:39,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697475306] [2022-11-16 12:20:39,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:20:39,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:39,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:39,716 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:39,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-16 12:20:39,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:20:39,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:39,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:39,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:41,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:41,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:41,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697475306] [2022-11-16 12:20:41,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697475306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:41,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:41,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077758707] [2022-11-16 12:20:41,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:41,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:41,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:41,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:41,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:41,216 INFO L87 Difference]: Start difference. First operand 670 states and 2734 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:43,187 INFO L93 Difference]: Finished difference Result 915 states and 3469 transitions. [2022-11-16 12:20:43,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:43,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:43,191 INFO L225 Difference]: With dead ends: 915 [2022-11-16 12:20:43,191 INFO L226 Difference]: Without dead ends: 908 [2022-11-16 12:20:43,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:43,191 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:43,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 77 Unchecked, 1.2s Time] [2022-11-16 12:20:43,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-11-16 12:20:43,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 680. [2022-11-16 12:20:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 4.085419734904271) internal successors, (2774), 679 states have internal predecessors, (2774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 2774 transitions. [2022-11-16 12:20:43,217 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 2774 transitions. Word has length 23 [2022-11-16 12:20:43,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:43,217 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 2774 transitions. [2022-11-16 12:20:43,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 2774 transitions. [2022-11-16 12:20:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:43,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:43,220 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:43,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-11-16 12:20:43,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:43,420 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:43,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1270304529, now seen corresponding path program 39 times [2022-11-16 12:20:43,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:43,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679342075] [2022-11-16 12:20:43,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:20:43,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:43,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:43,422 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:43,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-16 12:20:43,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:20:43,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:43,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:43,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:44,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:44,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:44,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679342075] [2022-11-16 12:20:44,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679342075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:44,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:44,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:44,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921414114] [2022-11-16 12:20:44,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:44,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:44,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:44,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:44,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:44,261 INFO L87 Difference]: Start difference. First operand 680 states and 2774 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:45,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:45,445 INFO L93 Difference]: Finished difference Result 921 states and 3462 transitions. [2022-11-16 12:20:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:45,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:45,447 INFO L225 Difference]: With dead ends: 921 [2022-11-16 12:20:45,448 INFO L226 Difference]: Without dead ends: 908 [2022-11-16 12:20:45,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:45,448 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:45,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:20:45,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2022-11-16 12:20:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 676. [2022-11-16 12:20:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 675 states have (on average 4.0814814814814815) internal successors, (2755), 675 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 2755 transitions. [2022-11-16 12:20:45,475 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 2755 transitions. Word has length 23 [2022-11-16 12:20:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:45,475 INFO L495 AbstractCegarLoop]: Abstraction has 676 states and 2755 transitions. [2022-11-16 12:20:45,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 2755 transitions. [2022-11-16 12:20:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:45,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:45,477 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:45,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:45,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:45,678 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:45,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1416347585, now seen corresponding path program 40 times [2022-11-16 12:20:45,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:45,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573220750] [2022-11-16 12:20:45,679 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:20:45,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:45,680 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:45,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-16 12:20:45,954 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:20:45,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:45,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:45,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:46,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:46,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573220750] [2022-11-16 12:20:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573220750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:46,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:46,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232937428] [2022-11-16 12:20:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:46,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:46,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:46,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:46,405 INFO L87 Difference]: Start difference. First operand 676 states and 2755 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:47,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:47,584 INFO L93 Difference]: Finished difference Result 939 states and 3494 transitions. [2022-11-16 12:20:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:47,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:47,587 INFO L225 Difference]: With dead ends: 939 [2022-11-16 12:20:47,587 INFO L226 Difference]: Without dead ends: 918 [2022-11-16 12:20:47,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:47,587 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:47,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:20:47,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-11-16 12:20:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 666. [2022-11-16 12:20:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 4.079699248120301) internal successors, (2713), 665 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 2713 transitions. [2022-11-16 12:20:47,601 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 2713 transitions. Word has length 23 [2022-11-16 12:20:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:47,602 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 2713 transitions. [2022-11-16 12:20:47,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 2713 transitions. [2022-11-16 12:20:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:47,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:47,603 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:47,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (72)] Ended with exit code 0 [2022-11-16 12:20:47,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:47,804 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:47,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash 328256807, now seen corresponding path program 41 times [2022-11-16 12:20:47,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:47,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128517240] [2022-11-16 12:20:47,805 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:20:47,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:47,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:47,806 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:47,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-16 12:20:48,126 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:20:48,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:48,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:20:48,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:48,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:48,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:48,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:48,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128517240] [2022-11-16 12:20:48,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128517240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:48,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:48,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:48,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879479278] [2022-11-16 12:20:48,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:48,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:48,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:48,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:48,597 INFO L87 Difference]: Start difference. First operand 666 states and 2713 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:49,633 INFO L93 Difference]: Finished difference Result 859 states and 3278 transitions. [2022-11-16 12:20:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:49,636 INFO L225 Difference]: With dead ends: 859 [2022-11-16 12:20:49,636 INFO L226 Difference]: Without dead ends: 840 [2022-11-16 12:20:49,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:49,636 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:49,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-11-16 12:20:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 688. [2022-11-16 12:20:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 4.097525473071324) internal successors, (2815), 687 states have internal predecessors, (2815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 2815 transitions. [2022-11-16 12:20:49,652 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 2815 transitions. Word has length 23 [2022-11-16 12:20:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:49,652 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 2815 transitions. [2022-11-16 12:20:49,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 2815 transitions. [2022-11-16 12:20:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:49,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:49,655 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:49,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-16 12:20:49,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:49,871 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1754643179, now seen corresponding path program 42 times [2022-11-16 12:20:49,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:49,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082566245] [2022-11-16 12:20:49,871 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:20:49,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:49,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:49,872 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:49,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-16 12:20:50,149 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:20:50,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:50,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:20:50,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:50,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:50,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:50,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:50,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082566245] [2022-11-16 12:20:50,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082566245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:50,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:50,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:50,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10458773] [2022-11-16 12:20:50,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:50,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:50,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:50,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:50,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:50,656 INFO L87 Difference]: Start difference. First operand 688 states and 2815 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:51,581 INFO L93 Difference]: Finished difference Result 871 states and 3313 transitions. [2022-11-16 12:20:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:51,583 INFO L225 Difference]: With dead ends: 871 [2022-11-16 12:20:51,584 INFO L226 Difference]: Without dead ends: 852 [2022-11-16 12:20:51,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:51,584 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:51,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:20:51,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-11-16 12:20:51,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 700. [2022-11-16 12:20:51,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 699 states have (on average 4.078683834048641) internal successors, (2851), 699 states have internal predecessors, (2851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 2851 transitions. [2022-11-16 12:20:51,598 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 2851 transitions. Word has length 23 [2022-11-16 12:20:51,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:51,599 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 2851 transitions. [2022-11-16 12:20:51,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 2851 transitions. [2022-11-16 12:20:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:51,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:51,600 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:51,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (74)] Ended with exit code 0 [2022-11-16 12:20:51,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:51,801 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:51,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:51,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1892405003, now seen corresponding path program 43 times [2022-11-16 12:20:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:51,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931647493] [2022-11-16 12:20:51,802 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:20:51,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:51,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:51,803 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:51,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-16 12:20:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:52,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:20:52,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:52,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:52,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:52,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931647493] [2022-11-16 12:20:52,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931647493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:52,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:52,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:52,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867056197] [2022-11-16 12:20:52,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:52,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:52,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:52,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:52,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:52,449 INFO L87 Difference]: Start difference. First operand 700 states and 2851 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:53,383 INFO L93 Difference]: Finished difference Result 845 states and 3253 transitions. [2022-11-16 12:20:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:53,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:53,386 INFO L225 Difference]: With dead ends: 845 [2022-11-16 12:20:53,386 INFO L226 Difference]: Without dead ends: 826 [2022-11-16 12:20:53,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:20:53,386 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:53,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:20:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-16 12:20:53,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 726. [2022-11-16 12:20:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 4.019310344827586) internal successors, (2914), 725 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 2914 transitions. [2022-11-16 12:20:53,402 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 2914 transitions. Word has length 23 [2022-11-16 12:20:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:53,403 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 2914 transitions. [2022-11-16 12:20:53,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 2914 transitions. [2022-11-16 12:20:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:53,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:53,404 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:53,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (75)] Ended with exit code 0 [2022-11-16 12:20:53,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:53,605 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:53,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:53,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2081911423, now seen corresponding path program 44 times [2022-11-16 12:20:53,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:53,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58633930] [2022-11-16 12:20:53,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:20:53,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:53,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:53,607 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:53,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-16 12:20:53,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:20:53,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:53,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:53,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:55,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:55,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:55,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58633930] [2022-11-16 12:20:55,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58633930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:55,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:55,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:55,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094301348] [2022-11-16 12:20:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:55,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:55,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:55,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:55,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:55,282 INFO L87 Difference]: Start difference. First operand 726 states and 2914 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:57,597 INFO L93 Difference]: Finished difference Result 967 states and 3618 transitions. [2022-11-16 12:20:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:20:57,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:57,600 INFO L225 Difference]: With dead ends: 967 [2022-11-16 12:20:57,600 INFO L226 Difference]: Without dead ends: 960 [2022-11-16 12:20:57,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:20:57,600 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:57,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 276 Invalid, 0 Unknown, 72 Unchecked, 1.3s Time] [2022-11-16 12:20:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-11-16 12:20:57,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 730. [2022-11-16 12:20:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.01920438957476) internal successors, (2930), 729 states have internal predecessors, (2930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2930 transitions. [2022-11-16 12:20:57,614 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2930 transitions. Word has length 23 [2022-11-16 12:20:57,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:57,615 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2930 transitions. [2022-11-16 12:20:57,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:57,615 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2930 transitions. [2022-11-16 12:20:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:57,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:57,617 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:57,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (76)] Ended with exit code 0 [2022-11-16 12:20:57,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:57,818 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:57,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:57,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1226604769, now seen corresponding path program 45 times [2022-11-16 12:20:57,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:57,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972850917] [2022-11-16 12:20:57,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:20:57,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:57,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:57,820 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:57,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-16 12:20:58,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:20:58,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:20:58,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:20:58,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:20:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:20:58,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:20:58,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:20:58,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972850917] [2022-11-16 12:20:58,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972850917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:58,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:58,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:20:58,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487151265] [2022-11-16 12:20:58,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:58,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:20:58,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:20:58,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:20:58,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:20:58,580 INFO L87 Difference]: Start difference. First operand 730 states and 2930 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:59,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:20:59,654 INFO L93 Difference]: Finished difference Result 975 states and 3616 transitions. [2022-11-16 12:20:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:20:59,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:20:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:20:59,656 INFO L225 Difference]: With dead ends: 975 [2022-11-16 12:20:59,657 INFO L226 Difference]: Without dead ends: 964 [2022-11-16 12:20:59,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:20:59,657 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:20:59,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 0 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:20:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-11-16 12:20:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 728. [2022-11-16 12:20:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 4.017881705639615) internal successors, (2921), 727 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2921 transitions. [2022-11-16 12:20:59,673 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2921 transitions. Word has length 23 [2022-11-16 12:20:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:20:59,673 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 2921 transitions. [2022-11-16 12:20:59,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2921 transitions. [2022-11-16 12:20:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:20:59,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:20:59,675 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:59,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (77)] Ended with exit code 0 [2022-11-16 12:20:59,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:59,876 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:20:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:59,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1511759075, now seen corresponding path program 46 times [2022-11-16 12:20:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:20:59,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554894441] [2022-11-16 12:20:59,876 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:20:59,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:20:59,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:20:59,877 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:20:59,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-16 12:21:00,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:21:00,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:00,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:00,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:00,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:00,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:00,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554894441] [2022-11-16 12:21:00,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554894441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:00,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:00,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:00,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20995723] [2022-11-16 12:21:00,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:00,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:00,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:00,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:00,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:00,553 INFO L87 Difference]: Start difference. First operand 728 states and 2921 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:01,487 INFO L93 Difference]: Finished difference Result 995 states and 3657 transitions. [2022-11-16 12:21:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:01,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:01,490 INFO L225 Difference]: With dead ends: 995 [2022-11-16 12:21:01,490 INFO L226 Difference]: Without dead ends: 980 [2022-11-16 12:21:01,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:01,490 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:01,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:21:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-11-16 12:21:01,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 726. [2022-11-16 12:21:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 4.019310344827586) internal successors, (2914), 725 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 2914 transitions. [2022-11-16 12:21:01,512 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 2914 transitions. Word has length 23 [2022-11-16 12:21:01,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:01,512 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 2914 transitions. [2022-11-16 12:21:01,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:01,512 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 2914 transitions. [2022-11-16 12:21:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:01,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:01,515 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:01,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (78)] Ended with exit code 0 [2022-11-16 12:21:01,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:01,715 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:01,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:01,716 INFO L85 PathProgramCache]: Analyzing trace with hash -533989089, now seen corresponding path program 47 times [2022-11-16 12:21:01,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:01,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190495571] [2022-11-16 12:21:01,716 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:21:01,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:01,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:01,717 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:01,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-16 12:21:02,022 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:21:02,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:02,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:02,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:03,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:03,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:03,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190495571] [2022-11-16 12:21:03,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190495571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:03,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:03,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261427223] [2022-11-16 12:21:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:03,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:03,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:03,572 INFO L87 Difference]: Start difference. First operand 726 states and 2914 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:05,669 INFO L93 Difference]: Finished difference Result 965 states and 3620 transitions. [2022-11-16 12:21:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:21:05,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:05,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:05,673 INFO L225 Difference]: With dead ends: 965 [2022-11-16 12:21:05,673 INFO L226 Difference]: Without dead ends: 958 [2022-11-16 12:21:05,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:05,673 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:05,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 250 Invalid, 0 Unknown, 80 Unchecked, 1.3s Time] [2022-11-16 12:21:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-11-16 12:21:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 730. [2022-11-16 12:21:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.027434842249657) internal successors, (2936), 729 states have internal predecessors, (2936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2936 transitions. [2022-11-16 12:21:05,687 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2936 transitions. Word has length 23 [2022-11-16 12:21:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:05,687 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2936 transitions. [2022-11-16 12:21:05,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2936 transitions. [2022-11-16 12:21:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:05,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:05,689 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:05,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-16 12:21:05,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:05,889 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 321317565, now seen corresponding path program 48 times [2022-11-16 12:21:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:05,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674578773] [2022-11-16 12:21:05,890 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:21:05,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:05,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:05,891 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:05,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-16 12:21:06,156 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:21:06,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:06,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:06,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:06,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:06,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:06,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674578773] [2022-11-16 12:21:06,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674578773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:06,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:06,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:06,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970763776] [2022-11-16 12:21:06,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:06,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:06,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:06,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:06,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:06,738 INFO L87 Difference]: Start difference. First operand 730 states and 2936 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:07,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:07,809 INFO L93 Difference]: Finished difference Result 967 states and 3612 transitions. [2022-11-16 12:21:07,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:07,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:07,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:07,812 INFO L225 Difference]: With dead ends: 967 [2022-11-16 12:21:07,812 INFO L226 Difference]: Without dead ends: 956 [2022-11-16 12:21:07,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:21:07,813 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:07,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:21:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-11-16 12:21:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 730. [2022-11-16 12:21:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.027434842249657) internal successors, (2936), 729 states have internal predecessors, (2936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:07,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2936 transitions. [2022-11-16 12:21:07,829 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2936 transitions. Word has length 23 [2022-11-16 12:21:07,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:07,829 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2936 transitions. [2022-11-16 12:21:07,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:07,829 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2936 transitions. [2022-11-16 12:21:07,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:07,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:07,831 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:07,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (80)] Ended with exit code 0 [2022-11-16 12:21:08,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:08,032 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:08,032 INFO L85 PathProgramCache]: Analyzing trace with hash -773631427, now seen corresponding path program 49 times [2022-11-16 12:21:08,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:08,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875033193] [2022-11-16 12:21:08,033 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:21:08,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:08,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:08,033 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:08,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-16 12:21:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:08,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:08,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:09,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:09,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:09,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875033193] [2022-11-16 12:21:09,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875033193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:09,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:09,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:09,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98111011] [2022-11-16 12:21:09,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:09,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:09,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:09,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:09,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:09,791 INFO L87 Difference]: Start difference. First operand 730 states and 2936 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:12,313 INFO L93 Difference]: Finished difference Result 951 states and 3590 transitions. [2022-11-16 12:21:12,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:21:12,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:12,315 INFO L225 Difference]: With dead ends: 951 [2022-11-16 12:21:12,316 INFO L226 Difference]: Without dead ends: 945 [2022-11-16 12:21:12,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:12,316 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:12,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 63 Unchecked, 1.1s Time] [2022-11-16 12:21:12,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-11-16 12:21:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 730. [2022-11-16 12:21:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.026063100137174) internal successors, (2935), 729 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2935 transitions. [2022-11-16 12:21:12,329 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2935 transitions. Word has length 23 [2022-11-16 12:21:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:12,329 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2935 transitions. [2022-11-16 12:21:12,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2935 transitions. [2022-11-16 12:21:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:12,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:12,330 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:12,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:12,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:12,531 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:12,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1739542237, now seen corresponding path program 50 times [2022-11-16 12:21:12,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:12,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484951218] [2022-11-16 12:21:12,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:21:12,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:12,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:12,533 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:12,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-16 12:21:12,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:21:12,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:12,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:12,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:13,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:13,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:13,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484951218] [2022-11-16 12:21:13,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484951218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:13,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:13,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362761639] [2022-11-16 12:21:13,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:13,371 INFO L87 Difference]: Start difference. First operand 730 states and 2935 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:14,518 INFO L93 Difference]: Finished difference Result 977 states and 3643 transitions. [2022-11-16 12:21:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:14,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:14,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:14,521 INFO L225 Difference]: With dead ends: 977 [2022-11-16 12:21:14,521 INFO L226 Difference]: Without dead ends: 966 [2022-11-16 12:21:14,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:21:14,522 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:14,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:21:14,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-11-16 12:21:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 726. [2022-11-16 12:21:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 4.019310344827586) internal successors, (2914), 725 states have internal predecessors, (2914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 2914 transitions. [2022-11-16 12:21:14,538 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 2914 transitions. Word has length 23 [2022-11-16 12:21:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:14,538 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 2914 transitions. [2022-11-16 12:21:14,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 2914 transitions. [2022-11-16 12:21:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:14,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:14,541 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:14,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (82)] Ended with exit code 0 [2022-11-16 12:21:14,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:14,745 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 2049614653, now seen corresponding path program 51 times [2022-11-16 12:21:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:14,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168331043] [2022-11-16 12:21:14,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:21:14,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:14,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:14,747 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:14,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-16 12:21:15,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:21:15,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:15,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:15,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:15,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:15,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:15,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:15,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168331043] [2022-11-16 12:21:15,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168331043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:15,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:15,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:15,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663197639] [2022-11-16 12:21:15,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:15,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:15,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:15,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:15,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:15,377 INFO L87 Difference]: Start difference. First operand 726 states and 2914 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:16,286 INFO L93 Difference]: Finished difference Result 959 states and 3585 transitions. [2022-11-16 12:21:16,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:16,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:16,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:16,289 INFO L225 Difference]: With dead ends: 959 [2022-11-16 12:21:16,289 INFO L226 Difference]: Without dead ends: 944 [2022-11-16 12:21:16,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:16,289 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:16,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:21:16,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-11-16 12:21:16,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 730. [2022-11-16 12:21:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.012345679012346) internal successors, (2925), 729 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2925 transitions. [2022-11-16 12:21:16,302 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2925 transitions. Word has length 23 [2022-11-16 12:21:16,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:16,303 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2925 transitions. [2022-11-16 12:21:16,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2925 transitions. [2022-11-16 12:21:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:16,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:16,304 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:16,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-16 12:21:16,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:16,505 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:16,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1545358303, now seen corresponding path program 52 times [2022-11-16 12:21:16,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:16,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866540066] [2022-11-16 12:21:16,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:21:16,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:16,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:16,507 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:16,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-16 12:21:16,803 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:21:16,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:16,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:16,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:17,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:17,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:17,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866540066] [2022-11-16 12:21:17,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866540066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:17,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:17,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:17,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760889602] [2022-11-16 12:21:17,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:17,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:17,295 INFO L87 Difference]: Start difference. First operand 730 states and 2925 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:18,292 INFO L93 Difference]: Finished difference Result 949 states and 3574 transitions. [2022-11-16 12:21:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:18,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:18,295 INFO L225 Difference]: With dead ends: 949 [2022-11-16 12:21:18,295 INFO L226 Difference]: Without dead ends: 938 [2022-11-16 12:21:18,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:18,296 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:18,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:21:18,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-11-16 12:21:18,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 724. [2022-11-16 12:21:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 723 states have (on average 4.01521438450899) internal successors, (2903), 723 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:18,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 2903 transitions. [2022-11-16 12:21:18,317 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 2903 transitions. Word has length 23 [2022-11-16 12:21:18,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:18,317 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 2903 transitions. [2022-11-16 12:21:18,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 2903 transitions. [2022-11-16 12:21:18,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:18,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:18,320 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:18,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:18,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:18,520 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:18,521 INFO L85 PathProgramCache]: Analyzing trace with hash -128334079, now seen corresponding path program 53 times [2022-11-16 12:21:18,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:18,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963866270] [2022-11-16 12:21:18,521 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:21:18,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:18,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:18,522 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:18,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-16 12:21:18,827 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:21:18,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:18,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:18,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:19,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:19,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:19,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963866270] [2022-11-16 12:21:19,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963866270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:19,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:19,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:19,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089628561] [2022-11-16 12:21:19,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:19,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:19,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:19,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:19,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:19,787 INFO L87 Difference]: Start difference. First operand 724 states and 2903 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:21,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:21,819 INFO L93 Difference]: Finished difference Result 875 states and 3314 transitions. [2022-11-16 12:21:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:21:21,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:21,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:21,821 INFO L225 Difference]: With dead ends: 875 [2022-11-16 12:21:21,821 INFO L226 Difference]: Without dead ends: 868 [2022-11-16 12:21:21,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:21:21,822 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:21,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 68 Unchecked, 1.0s Time] [2022-11-16 12:21:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-11-16 12:21:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 730. [2022-11-16 12:21:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 4.0109739368998625) internal successors, (2924), 729 states have internal predecessors, (2924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:21,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2924 transitions. [2022-11-16 12:21:21,836 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2924 transitions. Word has length 23 [2022-11-16 12:21:21,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:21,837 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 2924 transitions. [2022-11-16 12:21:21,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:21,837 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2924 transitions. [2022-11-16 12:21:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:21,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:21,839 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:21,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:22,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:22,040 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash 726972575, now seen corresponding path program 54 times [2022-11-16 12:21:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:22,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793969448] [2022-11-16 12:21:22,041 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:21:22,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:22,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:22,042 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:22,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-11-16 12:21:22,323 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-16 12:21:22,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:22,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:22,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:22,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:22,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:22,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793969448] [2022-11-16 12:21:22,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793969448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:22,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:22,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:22,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564702040] [2022-11-16 12:21:22,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:22,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:22,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:22,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:22,730 INFO L87 Difference]: Start difference. First operand 730 states and 2924 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:23,936 INFO L93 Difference]: Finished difference Result 883 states and 3313 transitions. [2022-11-16 12:21:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:23,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:23,938 INFO L225 Difference]: With dead ends: 883 [2022-11-16 12:21:23,939 INFO L226 Difference]: Without dead ends: 872 [2022-11-16 12:21:23,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:23,939 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:23,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:21:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-11-16 12:21:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 728. [2022-11-16 12:21:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 4.009628610729023) internal successors, (2915), 727 states have internal predecessors, (2915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:23,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2915 transitions. [2022-11-16 12:21:23,953 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2915 transitions. Word has length 23 [2022-11-16 12:21:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:23,953 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 2915 transitions. [2022-11-16 12:21:23,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:23,953 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2915 transitions. [2022-11-16 12:21:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:23,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:23,955 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:23,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:24,161 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -829630877, now seen corresponding path program 55 times [2022-11-16 12:21:24,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:24,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734306887] [2022-11-16 12:21:24,162 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:21:24,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:24,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:24,164 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:24,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-16 12:21:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:24,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:21:24,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:24,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:24,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:24,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734306887] [2022-11-16 12:21:24,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734306887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:24,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:24,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:21:24,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403807495] [2022-11-16 12:21:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:24,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:21:24,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:21:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:24,789 INFO L87 Difference]: Start difference. First operand 728 states and 2915 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:25,783 INFO L93 Difference]: Finished difference Result 871 states and 3293 transitions. [2022-11-16 12:21:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:25,785 INFO L225 Difference]: With dead ends: 871 [2022-11-16 12:21:25,785 INFO L226 Difference]: Without dead ends: 856 [2022-11-16 12:21:25,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:25,786 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:25,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:21:25,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-11-16 12:21:25,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 726. [2022-11-16 12:21:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 725 states have (on average 4.011034482758621) internal successors, (2908), 725 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 2908 transitions. [2022-11-16 12:21:25,800 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 2908 transitions. Word has length 23 [2022-11-16 12:21:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:25,801 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 2908 transitions. [2022-11-16 12:21:25,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:25,801 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 2908 transitions. [2022-11-16 12:21:25,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:25,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:25,803 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:25,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:26,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:26,003 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1482606879, now seen corresponding path program 56 times [2022-11-16 12:21:26,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:26,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546729577] [2022-11-16 12:21:26,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:21:26,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:26,005 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:26,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-16 12:21:26,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:21:26,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:26,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:21:26,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:26,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:26,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546729577] [2022-11-16 12:21:26,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546729577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:26,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:26,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:26,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411173210] [2022-11-16 12:21:26,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:26,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:26,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:26,535 INFO L87 Difference]: Start difference. First operand 726 states and 2908 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:27,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:27,400 INFO L93 Difference]: Finished difference Result 845 states and 3245 transitions. [2022-11-16 12:21:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:27,402 INFO L225 Difference]: With dead ends: 845 [2022-11-16 12:21:27,402 INFO L226 Difference]: Without dead ends: 826 [2022-11-16 12:21:27,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:21:27,403 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:27,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:21:27,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-16 12:21:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 738. [2022-11-16 12:21:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 3.987788331071913) internal successors, (2939), 737 states have internal predecessors, (2939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 2939 transitions. [2022-11-16 12:21:27,416 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 2939 transitions. Word has length 23 [2022-11-16 12:21:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:27,416 INFO L495 AbstractCegarLoop]: Abstraction has 738 states and 2939 transitions. [2022-11-16 12:21:27,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 2939 transitions. [2022-11-16 12:21:27,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:27,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:27,418 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:27,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:27,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:27,618 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2071408319, now seen corresponding path program 57 times [2022-11-16 12:21:27,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:27,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757487393] [2022-11-16 12:21:27,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:21:27,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:27,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:27,620 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:27,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-16 12:21:27,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 12:21:27,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:27,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:21:27,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:28,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:28,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757487393] [2022-11-16 12:21:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757487393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:28,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42977432] [2022-11-16 12:21:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:28,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:28,272 INFO L87 Difference]: Start difference. First operand 738 states and 2939 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:29,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:29,239 INFO L93 Difference]: Finished difference Result 885 states and 3326 transitions. [2022-11-16 12:21:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:29,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:29,242 INFO L225 Difference]: With dead ends: 885 [2022-11-16 12:21:29,242 INFO L226 Difference]: Without dead ends: 866 [2022-11-16 12:21:29,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:29,242 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:29,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:21:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-11-16 12:21:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 736. [2022-11-16 12:21:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 735 states have (on average 3.9891156462585036) internal successors, (2932), 735 states have internal predecessors, (2932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 2932 transitions. [2022-11-16 12:21:29,254 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 2932 transitions. Word has length 23 [2022-11-16 12:21:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:29,255 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 2932 transitions. [2022-11-16 12:21:29,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 2932 transitions. [2022-11-16 12:21:29,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:21:29,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:29,257 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:29,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:29,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:29,457 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash -645021947, now seen corresponding path program 58 times [2022-11-16 12:21:29,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:29,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753101810] [2022-11-16 12:21:29,458 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:21:29,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:29,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:29,459 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:29,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-16 12:21:29,765 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:21:29,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:29,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:21:29,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:30,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:30,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:21:30,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:30,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753101810] [2022-11-16 12:21:30,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753101810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:30,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:30,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:30,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820968852] [2022-11-16 12:21:30,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:30,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:30,177 INFO L87 Difference]: Start difference. First operand 736 states and 2932 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:31,082 INFO L93 Difference]: Finished difference Result 849 states and 3236 transitions. [2022-11-16 12:21:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-16 12:21:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:31,085 INFO L225 Difference]: With dead ends: 849 [2022-11-16 12:21:31,085 INFO L226 Difference]: Without dead ends: 830 [2022-11-16 12:21:31,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:21:31,085 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:31,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:21:31,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-16 12:21:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 718. [2022-11-16 12:21:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 3.9609483960948397) internal successors, (2840), 717 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 2840 transitions. [2022-11-16 12:21:31,096 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 2840 transitions. Word has length 23 [2022-11-16 12:21:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:31,096 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 2840 transitions. [2022-11-16 12:21:31,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 2840 transitions. [2022-11-16 12:21:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:31,098 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:31,098 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:31,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:31,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:31,311 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1971908266, now seen corresponding path program 1 times [2022-11-16 12:21:31,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:31,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967054898] [2022-11-16 12:21:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:31,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:31,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:31,312 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:31,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-16 12:21:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:31,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:31,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:32,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:32,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:32,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967054898] [2022-11-16 12:21:32,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967054898] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:32,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:32,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:21:32,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219124849] [2022-11-16 12:21:32,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:32,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:32,995 INFO L87 Difference]: Start difference. First operand 718 states and 2840 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:34,902 INFO L93 Difference]: Finished difference Result 1212 states and 4492 transitions. [2022-11-16 12:21:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:34,906 INFO L225 Difference]: With dead ends: 1212 [2022-11-16 12:21:34,906 INFO L226 Difference]: Without dead ends: 1212 [2022-11-16 12:21:34,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:21:34,906 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:34,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:21:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-16 12:21:34,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 754. [2022-11-16 12:21:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 3.9853917662682603) internal successors, (3001), 753 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 3001 transitions. [2022-11-16 12:21:34,933 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 3001 transitions. Word has length 24 [2022-11-16 12:21:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:34,933 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 3001 transitions. [2022-11-16 12:21:34,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:34,934 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 3001 transitions. [2022-11-16 12:21:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:34,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:34,935 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:34,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:35,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:35,136 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:35,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:35,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2083416692, now seen corresponding path program 2 times [2022-11-16 12:21:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:35,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102915353] [2022-11-16 12:21:35,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:21:35,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:35,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:35,138 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:35,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-11-16 12:21:35,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:21:35,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:35,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:35,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:35,942 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:35,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:36,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:36,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102915353] [2022-11-16 12:21:36,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102915353] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:21:36,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:21:36,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:21:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696718519] [2022-11-16 12:21:36,901 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:21:36,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:21:36,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:36,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:21:36,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:36,901 INFO L87 Difference]: Start difference. First operand 754 states and 3001 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:38,345 INFO L93 Difference]: Finished difference Result 1230 states and 4544 transitions. [2022-11-16 12:21:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:38,348 INFO L225 Difference]: With dead ends: 1230 [2022-11-16 12:21:38,348 INFO L226 Difference]: Without dead ends: 1230 [2022-11-16 12:21:38,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:21:38,349 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 109 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:38,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 0 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:21:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2022-11-16 12:21:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 766. [2022-11-16 12:21:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 765 states have (on average 3.976470588235294) internal successors, (3042), 765 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 3042 transitions. [2022-11-16 12:21:38,366 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 3042 transitions. Word has length 24 [2022-11-16 12:21:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:38,367 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 3042 transitions. [2022-11-16 12:21:38,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 3042 transitions. [2022-11-16 12:21:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:38,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:38,369 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:38,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (92)] Ended with exit code 0 [2022-11-16 12:21:38,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:38,569 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:38,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash 26361434, now seen corresponding path program 3 times [2022-11-16 12:21:38,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:38,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124946048] [2022-11-16 12:21:38,570 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:21:38,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:38,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:38,571 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:38,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-16 12:21:38,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:21:38,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:38,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:38,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:39,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:39,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:39,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:39,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124946048] [2022-11-16 12:21:39,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124946048] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:39,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:39,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:21:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826161430] [2022-11-16 12:21:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:39,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:39,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:39,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:39,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:21:39,894 INFO L87 Difference]: Start difference. First operand 766 states and 3042 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:42,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:42,163 INFO L93 Difference]: Finished difference Result 1328 states and 4858 transitions. [2022-11-16 12:21:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:42,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:42,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:42,167 INFO L225 Difference]: With dead ends: 1328 [2022-11-16 12:21:42,167 INFO L226 Difference]: Without dead ends: 1328 [2022-11-16 12:21:42,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:21:42,167 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:42,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 0 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:21:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-11-16 12:21:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 784. [2022-11-16 12:21:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 3.9578544061302683) internal successors, (3099), 783 states have internal predecessors, (3099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 3099 transitions. [2022-11-16 12:21:42,194 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 3099 transitions. Word has length 24 [2022-11-16 12:21:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:42,195 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 3099 transitions. [2022-11-16 12:21:42,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:42,195 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 3099 transitions. [2022-11-16 12:21:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:42,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:42,198 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:42,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (93)] Ended with exit code 0 [2022-11-16 12:21:42,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:42,412 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1148779495, now seen corresponding path program 1 times [2022-11-16 12:21:42,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:42,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785792568] [2022-11-16 12:21:42,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:42,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:42,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:42,413 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:42,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2022-11-16 12:21:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:42,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:42,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:43,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:44,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:44,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785792568] [2022-11-16 12:21:44,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785792568] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:44,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:44,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:21:44,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804136251] [2022-11-16 12:21:44,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:44,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:44,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:44,553 INFO L87 Difference]: Start difference. First operand 784 states and 3099 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:46,542 INFO L93 Difference]: Finished difference Result 1138 states and 4176 transitions. [2022-11-16 12:21:46,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:46,545 INFO L225 Difference]: With dead ends: 1138 [2022-11-16 12:21:46,545 INFO L226 Difference]: Without dead ends: 1138 [2022-11-16 12:21:46,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:21:46,546 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:21:46,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-11-16 12:21:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 800. [2022-11-16 12:21:46,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 3.9762202753441804) internal successors, (3177), 799 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 3177 transitions. [2022-11-16 12:21:46,562 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 3177 transitions. Word has length 24 [2022-11-16 12:21:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:46,562 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 3177 transitions. [2022-11-16 12:21:46,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 3177 transitions. [2022-11-16 12:21:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:46,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:46,563 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:46,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:46,764 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2004086149, now seen corresponding path program 2 times [2022-11-16 12:21:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:46,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [288262209] [2022-11-16 12:21:46,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:21:46,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:46,766 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2022-11-16 12:21:47,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:21:47,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:47,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:47,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:47,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:48,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:48,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:48,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [288262209] [2022-11-16 12:21:48,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [288262209] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:48,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:48,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:21:48,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286211628] [2022-11-16 12:21:48,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:48,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:48,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:48,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:48,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:48,973 INFO L87 Difference]: Start difference. First operand 800 states and 3177 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:51,365 INFO L93 Difference]: Finished difference Result 1154 states and 4224 transitions. [2022-11-16 12:21:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:51,370 INFO L225 Difference]: With dead ends: 1154 [2022-11-16 12:21:51,370 INFO L226 Difference]: Without dead ends: 1154 [2022-11-16 12:21:51,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:21:51,370 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:51,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:21:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-16 12:21:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 812. [2022-11-16 12:21:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.967940813810111) internal successors, (3218), 811 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 3218 transitions. [2022-11-16 12:21:51,386 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 3218 transitions. Word has length 24 [2022-11-16 12:21:51,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:51,386 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 3218 transitions. [2022-11-16 12:21:51,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 3218 transitions. [2022-11-16 12:21:51,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:51,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:51,389 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:51,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2022-11-16 12:21:51,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:51,603 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:51,604 INFO L85 PathProgramCache]: Analyzing trace with hash -648171864, now seen corresponding path program 4 times [2022-11-16 12:21:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:51,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322307849] [2022-11-16 12:21:51,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:21:51,604 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:51,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:51,605 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:51,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-16 12:21:51,940 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:21:51,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:51,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:51,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:52,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:53,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:53,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322307849] [2022-11-16 12:21:53,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322307849] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:53,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:53,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:21:53,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525279857] [2022-11-16 12:21:53,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:53,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:53,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:53,475 INFO L87 Difference]: Start difference. First operand 812 states and 3218 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:55,584 INFO L93 Difference]: Finished difference Result 1368 states and 4988 transitions. [2022-11-16 12:21:55,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:21:55,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:21:55,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:55,588 INFO L225 Difference]: With dead ends: 1368 [2022-11-16 12:21:55,588 INFO L226 Difference]: Without dead ends: 1368 [2022-11-16 12:21:55,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:21:55,588 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 78 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:55,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 0 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:21:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-11-16 12:21:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 820. [2022-11-16 12:21:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 3.9853479853479854) internal successors, (3264), 819 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 3264 transitions. [2022-11-16 12:21:55,604 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 3264 transitions. Word has length 24 [2022-11-16 12:21:55,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:21:55,605 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 3264 transitions. [2022-11-16 12:21:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 3264 transitions. [2022-11-16 12:21:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:21:55,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:21:55,606 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:55,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (96)] Ended with exit code 0 [2022-11-16 12:21:55,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:55,807 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:21:55,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:55,807 INFO L85 PathProgramCache]: Analyzing trace with hash -887814202, now seen corresponding path program 5 times [2022-11-16 12:21:55,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:21:55,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888400363] [2022-11-16 12:21:55,808 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:21:55,808 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:21:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:21:55,809 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:21:55,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2022-11-16 12:21:56,186 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:21:56,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:21:56,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:21:56,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:21:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:56,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:21:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:21:57,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:21:57,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888400363] [2022-11-16 12:21:57,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888400363] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:21:57,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:21:57,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:21:57,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165853000] [2022-11-16 12:21:57,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:57,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:21:57,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:21:57,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:21:57,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:21:57,839 INFO L87 Difference]: Start difference. First operand 820 states and 3264 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:00,177 INFO L93 Difference]: Finished difference Result 1388 states and 5047 transitions. [2022-11-16 12:22:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:22:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:22:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:22:00,180 INFO L225 Difference]: With dead ends: 1388 [2022-11-16 12:22:00,180 INFO L226 Difference]: Without dead ends: 1388 [2022-11-16 12:22:00,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:22:00,181 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:22:00,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:22:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2022-11-16 12:22:00,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 812. [2022-11-16 12:22:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.967940813810111) internal successors, (3218), 811 states have internal predecessors, (3218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:00,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 3218 transitions. [2022-11-16 12:22:00,197 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 3218 transitions. Word has length 24 [2022-11-16 12:22:00,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:00,198 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 3218 transitions. [2022-11-16 12:22:00,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 3218 transitions. [2022-11-16 12:22:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:22:00,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:00,200 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:00,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (97)] Ended with exit code 0 [2022-11-16 12:22:00,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:22:00,401 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:22:00,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1383805022, now seen corresponding path program 6 times [2022-11-16 12:22:00,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:22:00,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211704436] [2022-11-16 12:22:00,402 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:22:00,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:22:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:22:00,403 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:22:00,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2022-11-16 12:22:00,930 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:22:00,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:22:00,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:22:00,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:22:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:22:01,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:22:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:22:02,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:22:02,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211704436] [2022-11-16 12:22:02,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211704436] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:22:02,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:22:02,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:22:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279174576] [2022-11-16 12:22:02,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:02,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:22:02,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:22:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:22:02,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:22:02,373 INFO L87 Difference]: Start difference. First operand 812 states and 3218 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:22:04,490 INFO L93 Difference]: Finished difference Result 1288 states and 4721 transitions. [2022-11-16 12:22:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. WARNING: YOUR LOGFILE WAS TOO LONG, SOME LINES IN THE MIDDLE WERE REMOVED. [2022-11-16 12:24:16,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:24:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-16 12:24:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 874. [2022-11-16 12:24:16,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 3.9278350515463916) internal successors, (3429), 873 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:16,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 3429 transitions. [2022-11-16 12:24:16,844 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 3429 transitions. Word has length 24 [2022-11-16 12:24:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:16,845 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 3429 transitions. [2022-11-16 12:24:16,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:16,845 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 3429 transitions. [2022-11-16 12:24:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:16,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:16,846 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:16,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (140)] Ended with exit code 0 [2022-11-16 12:24:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:17,047 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 41202168, now seen corresponding path program 29 times [2022-11-16 12:24:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:17,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302729894] [2022-11-16 12:24:17,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:24:17,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:17,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:17,049 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-16 12:24:17,534 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:24:17,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:17,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:17,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:17,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:18,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:18,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302729894] [2022-11-16 12:24:18,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302729894] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:18,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:18,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:18,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486490998] [2022-11-16 12:24:18,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:18,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:18,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:18,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:18,848 INFO L87 Difference]: Start difference. First operand 874 states and 3429 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:20,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:20,950 INFO L93 Difference]: Finished difference Result 1412 states and 5356 transitions. [2022-11-16 12:24:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:20,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:20,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:20,956 INFO L225 Difference]: With dead ends: 1412 [2022-11-16 12:24:20,956 INFO L226 Difference]: Without dead ends: 1412 [2022-11-16 12:24:20,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:24:20,956 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:20,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:24:20,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-11-16 12:24:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 882. [2022-11-16 12:24:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 3.9443813847900113) internal successors, (3475), 881 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 3475 transitions. [2022-11-16 12:24:21,014 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 3475 transitions. Word has length 24 [2022-11-16 12:24:21,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:21,015 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 3475 transitions. [2022-11-16 12:24:21,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 3475 transitions. [2022-11-16 12:24:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:21,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:21,017 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:21,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (141)] Ended with exit code 0 [2022-11-16 12:24:21,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:21,218 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:21,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:21,218 INFO L85 PathProgramCache]: Analyzing trace with hash -198440170, now seen corresponding path program 30 times [2022-11-16 12:24:21,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:21,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142792302] [2022-11-16 12:24:21,219 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:24:21,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:21,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:21,220 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:21,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (142)] Waiting until timeout for monitored process [2022-11-16 12:24:21,936 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:24:21,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:21,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:21,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:22,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:23,558 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:23,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:23,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142792302] [2022-11-16 12:24:23,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142792302] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:24:23,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:24:23,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:24:23,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134142140] [2022-11-16 12:24:23,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:24:23,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:24:23,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:24:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:23,559 INFO L87 Difference]: Start difference. First operand 882 states and 3475 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:26,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:26,788 INFO L93 Difference]: Finished difference Result 1676 states and 6126 transitions. [2022-11-16 12:24:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:24:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:26,794 INFO L225 Difference]: With dead ends: 1676 [2022-11-16 12:24:26,794 INFO L226 Difference]: Without dead ends: 1676 [2022-11-16 12:24:26,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:24:26,794 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 142 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:26,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 0 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 12:24:26,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-16 12:24:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 874. [2022-11-16 12:24:26,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 3.9278350515463916) internal successors, (3429), 873 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 3429 transitions. [2022-11-16 12:24:26,819 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 3429 transitions. Word has length 24 [2022-11-16 12:24:26,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:26,819 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 3429 transitions. [2022-11-16 12:24:26,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:26,819 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 3429 transitions. [2022-11-16 12:24:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:26,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:26,821 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:26,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (142)] Ended with exit code 0 [2022-11-16 12:24:27,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:27,022 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:27,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2039471868, now seen corresponding path program 31 times [2022-11-16 12:24:27,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:27,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315855408] [2022-11-16 12:24:27,023 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:24:27,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:27,024 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:27,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (143)] Waiting until timeout for monitored process [2022-11-16 12:24:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:27,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:27,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:27,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:28,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:28,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315855408] [2022-11-16 12:24:28,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315855408] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:28,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:28,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:24:28,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619223107] [2022-11-16 12:24:28,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:28,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:28,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:24:28,566 INFO L87 Difference]: Start difference. First operand 874 states and 3429 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:30,626 INFO L93 Difference]: Finished difference Result 1524 states and 5675 transitions. [2022-11-16 12:24:30,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:30,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:30,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:30,631 INFO L225 Difference]: With dead ends: 1524 [2022-11-16 12:24:30,631 INFO L226 Difference]: Without dead ends: 1524 [2022-11-16 12:24:30,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:24:30,632 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:30,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:24:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-11-16 12:24:30,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 858. [2022-11-16 12:24:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9171528588098017) internal successors, (3357), 857 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3357 transitions. [2022-11-16 12:24:30,654 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3357 transitions. Word has length 24 [2022-11-16 12:24:30,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:30,654 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3357 transitions. [2022-11-16 12:24:30,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3357 transitions. [2022-11-16 12:24:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:30,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:30,658 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:30,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (143)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:30,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:30,874 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1133077367, now seen corresponding path program 23 times [2022-11-16 12:24:30,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:30,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543230194] [2022-11-16 12:24:30,875 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:24:30,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:30,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:30,876 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:30,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-16 12:24:31,421 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:24:31,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:31,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:31,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:32,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:33,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:33,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:33,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543230194] [2022-11-16 12:24:33,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543230194] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:33,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:33,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:33,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740801718] [2022-11-16 12:24:33,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:33,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:33,584 INFO L87 Difference]: Start difference. First operand 858 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:36,169 INFO L93 Difference]: Finished difference Result 1128 states and 4117 transitions. [2022-11-16 12:24:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:36,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:36,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:36,173 INFO L225 Difference]: With dead ends: 1128 [2022-11-16 12:24:36,173 INFO L226 Difference]: Without dead ends: 1128 [2022-11-16 12:24:36,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:24:36,174 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:36,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 0 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:24:36,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-11-16 12:24:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 866. [2022-11-16 12:24:36,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 3.9341040462427745) internal successors, (3403), 865 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 3403 transitions. [2022-11-16 12:24:36,193 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 3403 transitions. Word has length 24 [2022-11-16 12:24:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:36,193 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 3403 transitions. [2022-11-16 12:24:36,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:36,194 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 3403 transitions. [2022-11-16 12:24:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:36,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:36,195 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:36,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (144)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:36,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:36,396 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:36,396 INFO L85 PathProgramCache]: Analyzing trace with hash -277770713, now seen corresponding path program 24 times [2022-11-16 12:24:36,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:36,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105845698] [2022-11-16 12:24:36,397 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:24:36,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:36,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:36,398 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:36,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (145)] Waiting until timeout for monitored process [2022-11-16 12:24:37,134 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:24:37,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:37,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:37,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:37,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:39,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:39,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105845698] [2022-11-16 12:24:39,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105845698] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:39,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:39,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:39,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172093631] [2022-11-16 12:24:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:39,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:39,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:39,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:39,254 INFO L87 Difference]: Start difference. First operand 866 states and 3403 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:42,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:42,040 INFO L93 Difference]: Finished difference Result 1144 states and 4165 transitions. [2022-11-16 12:24:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:42,044 INFO L225 Difference]: With dead ends: 1144 [2022-11-16 12:24:42,044 INFO L226 Difference]: Without dead ends: 1144 [2022-11-16 12:24:42,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:24:42,045 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:42,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:24:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-11-16 12:24:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 858. [2022-11-16 12:24:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9171528588098017) internal successors, (3357), 857 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:42,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3357 transitions. [2022-11-16 12:24:42,064 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3357 transitions. Word has length 24 [2022-11-16 12:24:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:42,064 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3357 transitions. [2022-11-16 12:24:42,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:42,064 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3357 transitions. [2022-11-16 12:24:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:42,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:42,066 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:42,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (145)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:42,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:42,266 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:42,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1364938570, now seen corresponding path program 32 times [2022-11-16 12:24:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:42,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814908476] [2022-11-16 12:24:42,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:24:42,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:42,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:42,268 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:42,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (146)] Waiting until timeout for monitored process [2022-11-16 12:24:42,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:24:42,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:42,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:42,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:43,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:43,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:44,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:44,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814908476] [2022-11-16 12:24:44,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814908476] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:44,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:44,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:44,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127707181] [2022-11-16 12:24:44,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:44,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:44,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:44,571 INFO L87 Difference]: Start difference. First operand 858 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:47,140 INFO L93 Difference]: Finished difference Result 1346 states and 5029 transitions. [2022-11-16 12:24:47,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:47,144 INFO L225 Difference]: With dead ends: 1346 [2022-11-16 12:24:47,144 INFO L226 Difference]: Without dead ends: 1346 [2022-11-16 12:24:47,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:24:47,145 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:47,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:24:47,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-16 12:24:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 866. [2022-11-16 12:24:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 865 states have (on average 3.9341040462427745) internal successors, (3403), 865 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 3403 transitions. [2022-11-16 12:24:47,166 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 3403 transitions. Word has length 24 [2022-11-16 12:24:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:47,166 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 3403 transitions. [2022-11-16 12:24:47,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 3403 transitions. [2022-11-16 12:24:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:47,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:47,168 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:47,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (146)] Ended with exit code 0 [2022-11-16 12:24:47,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:47,368 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:47,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:47,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1125296232, now seen corresponding path program 33 times [2022-11-16 12:24:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:47,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915459656] [2022-11-16 12:24:47,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:24:47,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:47,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:47,370 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:47,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-16 12:24:47,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:24:47,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:47,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:47,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:48,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:49,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:49,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915459656] [2022-11-16 12:24:49,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915459656] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:49,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:49,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:49,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355819515] [2022-11-16 12:24:49,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:49,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:49,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:49,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:49,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:49,819 INFO L87 Difference]: Start difference. First operand 866 states and 3403 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:52,343 INFO L93 Difference]: Finished difference Result 1366 states and 5088 transitions. [2022-11-16 12:24:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:52,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:52,347 INFO L225 Difference]: With dead ends: 1366 [2022-11-16 12:24:52,347 INFO L226 Difference]: Without dead ends: 1366 [2022-11-16 12:24:52,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:24:52,348 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:52,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 0 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:24:52,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2022-11-16 12:24:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 858. [2022-11-16 12:24:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9171528588098017) internal successors, (3357), 857 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3357 transitions. [2022-11-16 12:24:52,368 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3357 transitions. Word has length 24 [2022-11-16 12:24:52,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:52,369 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3357 transitions. [2022-11-16 12:24:52,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3357 transitions. [2022-11-16 12:24:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:52,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:52,379 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:52,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-16 12:24:52,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:52,579 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash -898051840, now seen corresponding path program 34 times [2022-11-16 12:24:52,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:52,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773219213] [2022-11-16 12:24:52,580 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:24:52,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:52,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:52,581 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:52,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (148)] Waiting until timeout for monitored process [2022-11-16 12:24:53,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:24:53,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:53,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:53,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:53,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:24:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:54,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:54,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773219213] [2022-11-16 12:24:54,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773219213] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:24:54,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:24:54,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:24:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936913469] [2022-11-16 12:24:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:54,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:54,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:54,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:24:54,659 INFO L87 Difference]: Start difference. First operand 858 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:57,045 INFO L93 Difference]: Finished difference Result 1266 states and 4762 transitions. [2022-11-16 12:24:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:57,050 INFO L225 Difference]: With dead ends: 1266 [2022-11-16 12:24:57,050 INFO L226 Difference]: Without dead ends: 1266 [2022-11-16 12:24:57,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:24:57,050 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:57,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:24:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-11-16 12:24:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 860. [2022-11-16 12:24:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.9161816065192085) internal successors, (3364), 859 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3364 transitions. [2022-11-16 12:24:57,071 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3364 transitions. Word has length 24 [2022-11-16 12:24:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:57,071 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3364 transitions. [2022-11-16 12:24:57,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:57,071 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3364 transitions. [2022-11-16 12:24:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:57,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:57,073 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:57,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (148)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:57,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:57,287 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1793155194, now seen corresponding path program 35 times [2022-11-16 12:24:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:57,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581133483] [2022-11-16 12:24:57,288 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:24:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:57,289 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:57,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (149)] Waiting until timeout for monitored process [2022-11-16 12:24:57,821 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:24:57,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:24:57,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:24:57,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:24:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:24:58,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:24:58,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:24:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581133483] [2022-11-16 12:24:58,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581133483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:58,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:58,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:24:58,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485152939] [2022-11-16 12:24:58,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:58,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:58,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:24:58,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:58,360 INFO L87 Difference]: Start difference. First operand 860 states and 3364 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:59,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:59,454 INFO L93 Difference]: Finished difference Result 1068 states and 3963 transitions. [2022-11-16 12:24:59,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:59,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:24:59,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:59,457 INFO L225 Difference]: With dead ends: 1068 [2022-11-16 12:24:59,457 INFO L226 Difference]: Without dead ends: 1064 [2022-11-16 12:24:59,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:24:59,458 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:59,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:24:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-16 12:24:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 858. [2022-11-16 12:24:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9171528588098017) internal successors, (3357), 857 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:59,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3357 transitions. [2022-11-16 12:24:59,475 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3357 transitions. Word has length 24 [2022-11-16 12:24:59,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:59,475 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3357 transitions. [2022-11-16 12:24:59,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:24:59,475 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3357 transitions. [2022-11-16 12:24:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:24:59,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:59,477 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:59,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (149)] Forceful destruction successful, exit code 0 [2022-11-16 12:24:59,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:59,678 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:24:59,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:59,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1325722239, now seen corresponding path program 25 times [2022-11-16 12:24:59,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:24:59,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522173690] [2022-11-16 12:24:59,679 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:24:59,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:24:59,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:24:59,680 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:24:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-16 12:25:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:00,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:00,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:00,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:02,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:02,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522173690] [2022-11-16 12:25:02,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522173690] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:02,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:02,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:02,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691345040] [2022-11-16 12:25:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:02,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:02,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:02,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:02,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:02,069 INFO L87 Difference]: Start difference. First operand 858 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:04,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:04,563 INFO L93 Difference]: Finished difference Result 1176 states and 4233 transitions. [2022-11-16 12:25:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:04,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:04,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:04,567 INFO L225 Difference]: With dead ends: 1176 [2022-11-16 12:25:04,567 INFO L226 Difference]: Without dead ends: 1176 [2022-11-16 12:25:04,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:25:04,568 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:04,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:25:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-11-16 12:25:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 858. [2022-11-16 12:25:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9171528588098017) internal successors, (3357), 857 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3357 transitions. [2022-11-16 12:25:04,592 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3357 transitions. Word has length 24 [2022-11-16 12:25:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:04,593 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3357 transitions. [2022-11-16 12:25:04,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:04,593 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3357 transitions. [2022-11-16 12:25:04,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:04,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:04,596 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:04,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (150)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:04,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:04,812 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:04,812 INFO L85 PathProgramCache]: Analyzing trace with hash 241705053, now seen corresponding path program 26 times [2022-11-16 12:25:04,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:04,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871305860] [2022-11-16 12:25:04,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:25:04,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:04,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:04,814 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:04,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Waiting until timeout for monitored process [2022-11-16 12:25:05,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:25:05,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:05,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:05,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:05,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:07,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:07,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871305860] [2022-11-16 12:25:07,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871305860] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:07,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:07,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951802373] [2022-11-16 12:25:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:07,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:07,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:07,274 INFO L87 Difference]: Start difference. First operand 858 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:09,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:09,721 INFO L93 Difference]: Finished difference Result 1210 states and 4327 transitions. [2022-11-16 12:25:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:09,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:09,725 INFO L225 Difference]: With dead ends: 1210 [2022-11-16 12:25:09,726 INFO L226 Difference]: Without dead ends: 1210 [2022-11-16 12:25:09,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:25:09,726 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:09,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:25:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-11-16 12:25:09,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 862. [2022-11-16 12:25:09,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 3.916376306620209) internal successors, (3372), 861 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 3372 transitions. [2022-11-16 12:25:09,745 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 3372 transitions. Word has length 24 [2022-11-16 12:25:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:09,745 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 3372 transitions. [2022-11-16 12:25:09,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:09,745 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 3372 transitions. [2022-11-16 12:25:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:09,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:09,747 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:09,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (151)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:09,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:09,951 INFO L420 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1565749410, now seen corresponding path program 36 times [2022-11-16 12:25:09,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:09,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454094528] [2022-11-16 12:25:09,952 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:25:09,952 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:09,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:09,953 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:09,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (152)] Waiting until timeout for monitored process [2022-11-16 12:25:10,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:25:10,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:10,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:10,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:11,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:25:11,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:11,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454094528] [2022-11-16 12:25:11,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454094528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:11,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:11,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:25:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41245164] [2022-11-16 12:25:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:11,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:11,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:11,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:11,276 INFO L87 Difference]: Start difference. First operand 862 states and 3372 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:12,438 INFO L93 Difference]: Finished difference Result 1118 states and 4084 transitions. [2022-11-16 12:25:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:12,441 INFO L225 Difference]: With dead ends: 1118 [2022-11-16 12:25:12,441 INFO L226 Difference]: Without dead ends: 1118 [2022-11-16 12:25:12,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:25:12,441 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:12,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:25:12,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-16 12:25:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 862. [2022-11-16 12:25:12,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 3.916376306620209) internal successors, (3372), 861 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 3372 transitions. [2022-11-16 12:25:12,458 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 3372 transitions. Word has length 24 [2022-11-16 12:25:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:12,458 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 3372 transitions. [2022-11-16 12:25:12,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 3372 transitions. [2022-11-16 12:25:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:12,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:12,460 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:12,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (152)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:12,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:12,661 INFO L420 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:12,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:12,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1963956524, now seen corresponding path program 37 times [2022-11-16 12:25:12,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:12,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000903237] [2022-11-16 12:25:12,662 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:25:12,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:12,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:12,663 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:12,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2022-11-16 12:25:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:13,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:13,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:13,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:25:13,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:13,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000903237] [2022-11-16 12:25:13,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000903237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:13,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:13,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:25:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127858236] [2022-11-16 12:25:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:13,585 INFO L87 Difference]: Start difference. First operand 862 states and 3372 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:14,578 INFO L93 Difference]: Finished difference Result 1080 states and 3992 transitions. [2022-11-16 12:25:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:14,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:14,581 INFO L225 Difference]: With dead ends: 1080 [2022-11-16 12:25:14,581 INFO L226 Difference]: Without dead ends: 1076 [2022-11-16 12:25:14,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:25:14,582 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:14,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:25:14,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-16 12:25:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 856. [2022-11-16 12:25:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.911111111111111) internal successors, (3344), 855 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3344 transitions. [2022-11-16 12:25:14,600 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3344 transitions. Word has length 24 [2022-11-16 12:25:14,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:14,600 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3344 transitions. [2022-11-16 12:25:14,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3344 transitions. [2022-11-16 12:25:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:14,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:14,602 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:14,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (153)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:14,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 153 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:14,803 INFO L420 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:14,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:14,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1311259187, now seen corresponding path program 27 times [2022-11-16 12:25:14,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:14,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032549678] [2022-11-16 12:25:14,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:25:14,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:14,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:14,805 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:14,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Waiting until timeout for monitored process [2022-11-16 12:25:15,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:25:15,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:15,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:15,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:15,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:17,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:17,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032549678] [2022-11-16 12:25:17,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032549678] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:17,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:17,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:17,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084272661] [2022-11-16 12:25:17,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:17,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:17,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:17,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:17,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:17,046 INFO L87 Difference]: Start difference. First operand 856 states and 3344 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:19,892 INFO L93 Difference]: Finished difference Result 1108 states and 4071 transitions. [2022-11-16 12:25:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:19,896 INFO L225 Difference]: With dead ends: 1108 [2022-11-16 12:25:19,896 INFO L226 Difference]: Without dead ends: 1108 [2022-11-16 12:25:19,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:25:19,897 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:19,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:25:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-11-16 12:25:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 850. [2022-11-16 12:25:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 3.92226148409894) internal successors, (3330), 849 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 3330 transitions. [2022-11-16 12:25:19,915 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 3330 transitions. Word has length 24 [2022-11-16 12:25:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:19,915 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 3330 transitions. [2022-11-16 12:25:19,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 3330 transitions. [2022-11-16 12:25:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:19,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:19,917 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:19,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (154)] Ended with exit code 0 [2022-11-16 12:25:20,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 154 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:20,118 INFO L420 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash 706239542, now seen corresponding path program 38 times [2022-11-16 12:25:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:20,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687807372] [2022-11-16 12:25:20,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:25:20,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:20,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:20,120 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:20,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Waiting until timeout for monitored process [2022-11-16 12:25:20,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:25:20,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:20,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:20,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:21,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:25:21,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687807372] [2022-11-16 12:25:21,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687807372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:21,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:21,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:25:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283873009] [2022-11-16 12:25:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:21,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:21,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:21,060 INFO L87 Difference]: Start difference. First operand 850 states and 3330 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:22,034 INFO L93 Difference]: Finished difference Result 1210 states and 4416 transitions. [2022-11-16 12:25:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:22,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:22,038 INFO L225 Difference]: With dead ends: 1210 [2022-11-16 12:25:22,038 INFO L226 Difference]: Without dead ends: 1210 [2022-11-16 12:25:22,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:25:22,038 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:22,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:25:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-11-16 12:25:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 850. [2022-11-16 12:25:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 3.92226148409894) internal successors, (3330), 849 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 3330 transitions. [2022-11-16 12:25:22,059 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 3330 transitions. Word has length 24 [2022-11-16 12:25:22,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:22,059 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 3330 transitions. [2022-11-16 12:25:22,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:22,059 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 3330 transitions. [2022-11-16 12:25:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:22,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:22,061 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:22,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (155)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:22,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 155 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:22,267 INFO L420 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:22,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash 299253069, now seen corresponding path program 28 times [2022-11-16 12:25:22,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:22,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261650373] [2022-11-16 12:25:22,268 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:25:22,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:22,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:22,269 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:22,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Waiting until timeout for monitored process [2022-11-16 12:25:22,804 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:25:22,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:22,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:22,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:23,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:24,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:24,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261650373] [2022-11-16 12:25:24,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261650373] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:24,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:24,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895318022] [2022-11-16 12:25:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:24,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:24,432 INFO L87 Difference]: Start difference. First operand 850 states and 3330 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:26,648 INFO L93 Difference]: Finished difference Result 1108 states and 4062 transitions. [2022-11-16 12:25:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:26,652 INFO L225 Difference]: With dead ends: 1108 [2022-11-16 12:25:26,653 INFO L226 Difference]: Without dead ends: 1108 [2022-11-16 12:25:26,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:25:26,653 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:26,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:25:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-11-16 12:25:26,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 850. [2022-11-16 12:25:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 3.92226148409894) internal successors, (3330), 849 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 3330 transitions. [2022-11-16 12:25:26,672 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 3330 transitions. Word has length 24 [2022-11-16 12:25:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:26,672 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 3330 transitions. [2022-11-16 12:25:26,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:26,672 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 3330 transitions. [2022-11-16 12:25:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:26,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:26,674 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:26,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (156)] Ended with exit code 0 [2022-11-16 12:25:26,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 156 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:26,874 INFO L420 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1508201394, now seen corresponding path program 39 times [2022-11-16 12:25:26,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:26,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60733494] [2022-11-16 12:25:26,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:25:26,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:26,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:26,876 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:26,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (157)] Waiting until timeout for monitored process [2022-11-16 12:25:27,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:25:27,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:27,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:27,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:27,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:25:27,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:27,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60733494] [2022-11-16 12:25:27,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60733494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:27,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:27,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:25:27,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429117124] [2022-11-16 12:25:27,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:27,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:27,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:27,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:27,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:27,783 INFO L87 Difference]: Start difference. First operand 850 states and 3330 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:28,825 INFO L93 Difference]: Finished difference Result 1104 states and 4050 transitions. [2022-11-16 12:25:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:28,829 INFO L225 Difference]: With dead ends: 1104 [2022-11-16 12:25:28,829 INFO L226 Difference]: Without dead ends: 1104 [2022-11-16 12:25:28,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:25:28,829 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:28,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:25:28,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-11-16 12:25:28,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 850. [2022-11-16 12:25:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 849 states have (on average 3.92226148409894) internal successors, (3330), 849 states have internal predecessors, (3330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 3330 transitions. [2022-11-16 12:25:28,861 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 3330 transitions. Word has length 24 [2022-11-16 12:25:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:28,861 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 3330 transitions. [2022-11-16 12:25:28,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 3330 transitions. [2022-11-16 12:25:28,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:28,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:28,863 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:28,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (157)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:29,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 157 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:29,063 INFO L420 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:29,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1906408508, now seen corresponding path program 40 times [2022-11-16 12:25:29,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:29,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120507937] [2022-11-16 12:25:29,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:25:29,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:29,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:29,066 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:29,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (158)] Waiting until timeout for monitored process [2022-11-16 12:25:29,592 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:25:29,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:29,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:29,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:29,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:25:29,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:29,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120507937] [2022-11-16 12:25:29,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [120507937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:29,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:29,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:25:29,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115505828] [2022-11-16 12:25:29,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:29,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:29,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:29,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:25:29,980 INFO L87 Difference]: Start difference. First operand 850 states and 3330 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:31,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:31,209 INFO L93 Difference]: Finished difference Result 1066 states and 3958 transitions. [2022-11-16 12:25:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:31,213 INFO L225 Difference]: With dead ends: 1066 [2022-11-16 12:25:31,213 INFO L226 Difference]: Without dead ends: 1062 [2022-11-16 12:25:31,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:25:31,213 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:31,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:25:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-16 12:25:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 836. [2022-11-16 12:25:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 835 states have (on average 3.926946107784431) internal successors, (3279), 835 states have internal predecessors, (3279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 3279 transitions. [2022-11-16 12:25:31,232 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 3279 transitions. Word has length 24 [2022-11-16 12:25:31,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:31,232 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 3279 transitions. [2022-11-16 12:25:31,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:31,232 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 3279 transitions. [2022-11-16 12:25:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:31,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:31,235 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:31,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (158)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:31,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 158 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:31,451 INFO L420 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:31,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:31,451 INFO L85 PathProgramCache]: Analyzing trace with hash 773933637, now seen corresponding path program 29 times [2022-11-16 12:25:31,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:31,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242747414] [2022-11-16 12:25:31,452 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:25:31,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:31,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:31,453 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:31,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Waiting until timeout for monitored process [2022-11-16 12:25:32,034 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:25:32,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:32,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:32,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:32,532 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:32,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:33,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:33,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242747414] [2022-11-16 12:25:33,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242747414] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:33,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:33,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149651417] [2022-11-16 12:25:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:33,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:33,550 INFO L87 Difference]: Start difference. First operand 836 states and 3279 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:36,630 INFO L93 Difference]: Finished difference Result 1218 states and 4532 transitions. [2022-11-16 12:25:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:36,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:36,635 INFO L225 Difference]: With dead ends: 1218 [2022-11-16 12:25:36,635 INFO L226 Difference]: Without dead ends: 1218 [2022-11-16 12:25:36,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:25:36,635 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:36,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 0 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 12:25:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2022-11-16 12:25:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 854. [2022-11-16 12:25:36,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 3.955451348182884) internal successors, (3374), 853 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 3374 transitions. [2022-11-16 12:25:36,655 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 3374 transitions. Word has length 24 [2022-11-16 12:25:36,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:36,655 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 3374 transitions. [2022-11-16 12:25:36,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 3374 transitions. [2022-11-16 12:25:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:36,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:36,657 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:36,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (159)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:36,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 159 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:36,858 INFO L420 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:36,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1629240291, now seen corresponding path program 30 times [2022-11-16 12:25:36,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:36,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140213313] [2022-11-16 12:25:36,858 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:25:36,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:36,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:36,860 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:36,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (160)] Waiting until timeout for monitored process [2022-11-16 12:25:37,614 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:25:37,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:37,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:37,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:38,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:39,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:39,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140213313] [2022-11-16 12:25:39,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140213313] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:39,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:39,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:25:39,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341992180] [2022-11-16 12:25:39,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:39,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:39,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:39,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:39,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:39,062 INFO L87 Difference]: Start difference. First operand 854 states and 3374 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:41,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:41,364 INFO L93 Difference]: Finished difference Result 1192 states and 4464 transitions. [2022-11-16 12:25:41,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:41,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:41,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:41,368 INFO L225 Difference]: With dead ends: 1192 [2022-11-16 12:25:41,368 INFO L226 Difference]: Without dead ends: 1192 [2022-11-16 12:25:41,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:25:41,368 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:41,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:25:41,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2022-11-16 12:25:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 846. [2022-11-16 12:25:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 3.9384615384615387) internal successors, (3328), 845 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 3328 transitions. [2022-11-16 12:25:41,384 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 3328 transitions. Word has length 24 [2022-11-16 12:25:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:41,384 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 3328 transitions. [2022-11-16 12:25:41,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:41,384 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 3328 transitions. [2022-11-16 12:25:41,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:41,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:41,386 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:41,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (160)] Ended with exit code 0 [2022-11-16 12:25:41,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 160 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:41,586 INFO L420 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:41,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:41,586 INFO L85 PathProgramCache]: Analyzing trace with hash -782669815, now seen corresponding path program 31 times [2022-11-16 12:25:41,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:41,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758103612] [2022-11-16 12:25:41,587 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:25:41,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:41,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:41,588 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:41,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (161)] Waiting until timeout for monitored process [2022-11-16 12:25:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:42,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:42,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:42,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:43,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:43,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758103612] [2022-11-16 12:25:43,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758103612] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:25:43,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:25:43,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:25:43,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040234039] [2022-11-16 12:25:43,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:43,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:25:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:43,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:25:43,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:25:43,032 INFO L87 Difference]: Start difference. First operand 846 states and 3328 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:45,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:45,449 INFO L93 Difference]: Finished difference Result 1208 states and 4496 transitions. [2022-11-16 12:25:45,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:45,453 INFO L225 Difference]: With dead ends: 1208 [2022-11-16 12:25:45,454 INFO L226 Difference]: Without dead ends: 1208 [2022-11-16 12:25:45,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:25:45,454 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:45,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:25:45,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-11-16 12:25:45,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 852. [2022-11-16 12:25:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.933019976498237) internal successors, (3347), 851 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3347 transitions. [2022-11-16 12:25:45,473 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3347 transitions. Word has length 24 [2022-11-16 12:25:45,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:45,473 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3347 transitions. [2022-11-16 12:25:45,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3347 transitions. [2022-11-16 12:25:45,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:45,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:45,475 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:45,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (161)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:45,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 161 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:45,676 INFO L420 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash 903016356, now seen corresponding path program 41 times [2022-11-16 12:25:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:45,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091011167] [2022-11-16 12:25:45,676 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:25:45,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:45,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:45,677 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:45,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Waiting until timeout for monitored process [2022-11-16 12:25:46,181 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:25:46,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:46,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:46,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:46,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:46,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:46,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091011167] [2022-11-16 12:25:46,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091011167] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:25:46,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:25:46,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:25:46,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056027207] [2022-11-16 12:25:46,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:25:46,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:25:46,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:25:46,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:25:46,986 INFO L87 Difference]: Start difference. First operand 852 states and 3347 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:49,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:49,334 INFO L93 Difference]: Finished difference Result 1492 states and 5452 transitions. [2022-11-16 12:25:49,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:25:49,335 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:49,338 INFO L225 Difference]: With dead ends: 1492 [2022-11-16 12:25:49,338 INFO L226 Difference]: Without dead ends: 1492 [2022-11-16 12:25:49,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:25:49,339 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:49,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:25:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2022-11-16 12:25:49,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 860. [2022-11-16 12:25:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.940628637951106) internal successors, (3385), 859 states have internal predecessors, (3385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3385 transitions. [2022-11-16 12:25:49,361 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3385 transitions. Word has length 24 [2022-11-16 12:25:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:49,361 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3385 transitions. [2022-11-16 12:25:49,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3385 transitions. [2022-11-16 12:25:49,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:49,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:49,363 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:49,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (162)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:49,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 162 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:49,564 INFO L420 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash 839997732, now seen corresponding path program 42 times [2022-11-16 12:25:49,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:49,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953022586] [2022-11-16 12:25:49,565 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:25:49,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:49,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:49,566 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:49,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Waiting until timeout for monitored process [2022-11-16 12:25:50,327 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:25:50,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:50,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:50,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:50,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:51,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:51,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953022586] [2022-11-16 12:25:51,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953022586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:25:51,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:25:51,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:25:51,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106451282] [2022-11-16 12:25:51,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:25:51,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:25:51,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:51,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:25:51,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:51,606 INFO L87 Difference]: Start difference. First operand 860 states and 3385 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:54,482 INFO L93 Difference]: Finished difference Result 1494 states and 5495 transitions. [2022-11-16 12:25:54,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:25:54,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:54,486 INFO L225 Difference]: With dead ends: 1494 [2022-11-16 12:25:54,487 INFO L226 Difference]: Without dead ends: 1494 [2022-11-16 12:25:54,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:25:54,487 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 151 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:54,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 0 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:25:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2022-11-16 12:25:54,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 868. [2022-11-16 12:25:54,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 3.9573241061130333) internal successors, (3431), 867 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 3431 transitions. [2022-11-16 12:25:54,523 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 3431 transitions. Word has length 24 [2022-11-16 12:25:54,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:54,523 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 3431 transitions. [2022-11-16 12:25:54,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 3431 transitions. [2022-11-16 12:25:54,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:54,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:54,525 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:54,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (163)] Ended with exit code 0 [2022-11-16 12:25:54,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 163 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:54,725 INFO L420 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:54,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 600355394, now seen corresponding path program 43 times [2022-11-16 12:25:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013492989] [2022-11-16 12:25:54,727 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:25:54,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:54,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:54,728 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:54,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Waiting until timeout for monitored process [2022-11-16 12:25:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:55,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:55,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:25:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:55,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:25:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:25:56,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:25:56,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013492989] [2022-11-16 12:25:56,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013492989] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:25:56,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:25:56,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:25:56,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182576473] [2022-11-16 12:25:56,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:25:56,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:25:56,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:25:56,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:25:56,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:56,538 INFO L87 Difference]: Start difference. First operand 868 states and 3431 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:58,933 INFO L93 Difference]: Finished difference Result 1460 states and 5404 transitions. [2022-11-16 12:25:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:25:58,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:25:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:58,938 INFO L225 Difference]: With dead ends: 1460 [2022-11-16 12:25:58,938 INFO L226 Difference]: Without dead ends: 1460 [2022-11-16 12:25:58,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:25:58,938 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 152 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:58,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 0 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:25:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-11-16 12:25:58,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 852. [2022-11-16 12:25:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.933019976498237) internal successors, (3347), 851 states have internal predecessors, (3347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3347 transitions. [2022-11-16 12:25:58,960 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3347 transitions. Word has length 24 [2022-11-16 12:25:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:58,960 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3347 transitions. [2022-11-16 12:25:58,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:25:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3347 transitions. [2022-11-16 12:25:58,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:25:58,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:58,962 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:58,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (164)] Forceful destruction successful, exit code 0 [2022-11-16 12:25:59,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 164 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:59,162 INFO L420 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:25:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:59,163 INFO L85 PathProgramCache]: Analyzing trace with hash -530209618, now seen corresponding path program 44 times [2022-11-16 12:25:59,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:25:59,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344910507] [2022-11-16 12:25:59,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:25:59,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:25:59,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:25:59,165 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:25:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Waiting until timeout for monitored process [2022-11-16 12:25:59,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:25:59,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:25:59,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:25:59,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:00,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:00,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:00,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344910507] [2022-11-16 12:26:00,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344910507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:26:00,516 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:26:00,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:26:00,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196474216] [2022-11-16 12:26:00,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:26:00,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:26:00,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:00,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:26:00,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:26:00,517 INFO L87 Difference]: Start difference. First operand 852 states and 3347 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:02,258 INFO L93 Difference]: Finished difference Result 1212 states and 4504 transitions. [2022-11-16 12:26:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:26:02,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:02,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:02,262 INFO L225 Difference]: With dead ends: 1212 [2022-11-16 12:26:02,262 INFO L226 Difference]: Without dead ends: 1212 [2022-11-16 12:26:02,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:02,262 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 102 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:02,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 0 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:26:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-16 12:26:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 854. [2022-11-16 12:26:02,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 3.929660023446659) internal successors, (3352), 853 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 3352 transitions. [2022-11-16 12:26:02,281 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 3352 transitions. Word has length 24 [2022-11-16 12:26:02,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:02,281 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 3352 transitions. [2022-11-16 12:26:02,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 3352 transitions. [2022-11-16 12:26:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:02,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:02,283 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:02,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (165)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:02,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 165 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:02,483 INFO L420 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:02,484 INFO L85 PathProgramCache]: Analyzing trace with hash -52746888, now seen corresponding path program 45 times [2022-11-16 12:26:02,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:02,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67315103] [2022-11-16 12:26:02,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:26:02,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:02,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:02,485 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:02,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (166)] Waiting until timeout for monitored process [2022-11-16 12:26:03,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:26:03,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:03,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:03,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:03,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:04,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67315103] [2022-11-16 12:26:04,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67315103] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:04,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:04,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:04,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237222406] [2022-11-16 12:26:04,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:04,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:04,028 INFO L87 Difference]: Start difference. First operand 854 states and 3352 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:05,675 INFO L93 Difference]: Finished difference Result 1084 states and 4145 transitions. [2022-11-16 12:26:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:05,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:05,679 INFO L225 Difference]: With dead ends: 1084 [2022-11-16 12:26:05,679 INFO L226 Difference]: Without dead ends: 1084 [2022-11-16 12:26:05,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:05,680 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:05,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:26:05,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-11-16 12:26:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 856. [2022-11-16 12:26:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.928654970760234) internal successors, (3359), 855 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3359 transitions. [2022-11-16 12:26:05,708 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3359 transitions. Word has length 24 [2022-11-16 12:26:05,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:05,708 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3359 transitions. [2022-11-16 12:26:05,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3359 transitions. [2022-11-16 12:26:05,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:05,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:05,710 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:05,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (166)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:05,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 166 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:05,911 INFO L420 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:05,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1656507150, now seen corresponding path program 46 times [2022-11-16 12:26:05,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:05,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172380018] [2022-11-16 12:26:05,912 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:26:05,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:05,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:05,913 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:05,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (167)] Waiting until timeout for monitored process [2022-11-16 12:26:06,416 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:26:06,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:06,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:06,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:06,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:06,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:06,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172380018] [2022-11-16 12:26:06,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172380018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:06,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:06,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:06,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786892864] [2022-11-16 12:26:06,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:06,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:06,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:06,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:06,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:06,752 INFO L87 Difference]: Start difference. First operand 856 states and 3359 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:07,674 INFO L93 Difference]: Finished difference Result 994 states and 3756 transitions. [2022-11-16 12:26:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:07,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:07,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:07,677 INFO L225 Difference]: With dead ends: 994 [2022-11-16 12:26:07,677 INFO L226 Difference]: Without dead ends: 990 [2022-11-16 12:26:07,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:26:07,678 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:07,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:26:07,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-11-16 12:26:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 854. [2022-11-16 12:26:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 3.929660023446659) internal successors, (3352), 853 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 3352 transitions. [2022-11-16 12:26:07,692 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 3352 transitions. Word has length 24 [2022-11-16 12:26:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:07,692 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 3352 transitions. [2022-11-16 12:26:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 3352 transitions. [2022-11-16 12:26:07,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:07,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:07,694 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:07,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (167)] Ended with exit code 0 [2022-11-16 12:26:07,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 167 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:07,894 INFO L420 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:07,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:07,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1944675215, now seen corresponding path program 32 times [2022-11-16 12:26:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:07,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041203509] [2022-11-16 12:26:07,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:26:07,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:07,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:07,896 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:07,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (168)] Waiting until timeout for monitored process [2022-11-16 12:26:08,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:26:08,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:08,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:08,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:08,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:09,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:09,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041203509] [2022-11-16 12:26:09,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041203509] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:09,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:09,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:09,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015536342] [2022-11-16 12:26:09,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:09,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:09,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:09,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:09,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:09,903 INFO L87 Difference]: Start difference. First operand 854 states and 3352 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:12,302 INFO L93 Difference]: Finished difference Result 1324 states and 4837 transitions. [2022-11-16 12:26:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:12,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:12,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:12,306 INFO L225 Difference]: With dead ends: 1324 [2022-11-16 12:26:12,307 INFO L226 Difference]: Without dead ends: 1324 [2022-11-16 12:26:12,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:12,307 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:12,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 0 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:26:12,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-16 12:26:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 864. [2022-11-16 12:26:12,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 3.9524913093858633) internal successors, (3411), 863 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:12,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 3411 transitions. [2022-11-16 12:26:12,328 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 3411 transitions. Word has length 24 [2022-11-16 12:26:12,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:12,328 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 3411 transitions. [2022-11-16 12:26:12,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 3411 transitions. [2022-11-16 12:26:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:12,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:12,330 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:12,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (168)] Ended with exit code 0 [2022-11-16 12:26:12,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 168 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:12,539 INFO L420 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:12,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:12,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1494985427, now seen corresponding path program 33 times [2022-11-16 12:26:12,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:12,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845556501] [2022-11-16 12:26:12,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:26:12,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:12,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:12,541 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:12,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (169)] Waiting until timeout for monitored process [2022-11-16 12:26:13,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:26:13,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:13,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:13,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:13,670 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:13,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:14,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:14,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845556501] [2022-11-16 12:26:14,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845556501] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:14,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:14,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:14,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492519576] [2022-11-16 12:26:14,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:14,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:14,794 INFO L87 Difference]: Start difference. First operand 864 states and 3411 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:17,430 INFO L93 Difference]: Finished difference Result 1340 states and 4888 transitions. [2022-11-16 12:26:17,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:17,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:17,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:17,435 INFO L225 Difference]: With dead ends: 1340 [2022-11-16 12:26:17,435 INFO L226 Difference]: Without dead ends: 1340 [2022-11-16 12:26:17,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:26:17,436 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:17,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:26:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-11-16 12:26:17,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 856. [2022-11-16 12:26:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.935672514619883) internal successors, (3365), 855 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3365 transitions. [2022-11-16 12:26:17,456 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3365 transitions. Word has length 24 [2022-11-16 12:26:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:17,456 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3365 transitions. [2022-11-16 12:26:17,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3365 transitions. [2022-11-16 12:26:17,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:17,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:17,458 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:17,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (169)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:17,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 169 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:17,659 INFO L420 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:17,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:17,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1748161710, now seen corresponding path program 47 times [2022-11-16 12:26:17,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:17,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394758201] [2022-11-16 12:26:17,660 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:26:17,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:17,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:17,661 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:17,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (170)] Waiting until timeout for monitored process [2022-11-16 12:26:18,215 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:26:18,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:18,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:18,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:18,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:19,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:19,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394758201] [2022-11-16 12:26:19,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394758201] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:19,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:19,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83907682] [2022-11-16 12:26:19,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:19,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:19,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:19,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:19,870 INFO L87 Difference]: Start difference. First operand 856 states and 3365 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:21,965 INFO L93 Difference]: Finished difference Result 1182 states and 4465 transitions. [2022-11-16 12:26:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:21,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:21,969 INFO L225 Difference]: With dead ends: 1182 [2022-11-16 12:26:21,969 INFO L226 Difference]: Without dead ends: 1182 [2022-11-16 12:26:21,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:21,970 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:21,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:26:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-11-16 12:26:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 864. [2022-11-16 12:26:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 3.9524913093858633) internal successors, (3411), 863 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 3411 transitions. [2022-11-16 12:26:21,989 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 3411 transitions. Word has length 24 [2022-11-16 12:26:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:21,989 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 3411 transitions. [2022-11-16 12:26:21,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 3411 transitions. [2022-11-16 12:26:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:21,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:21,991 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:22,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (170)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:22,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 170 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:22,191 INFO L420 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:22,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:22,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1508519372, now seen corresponding path program 48 times [2022-11-16 12:26:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:22,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999443931] [2022-11-16 12:26:22,192 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:26:22,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:22,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:22,193 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:22,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (171)] Waiting until timeout for monitored process [2022-11-16 12:26:22,909 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:26:22,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:22,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:22,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:23,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:24,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:24,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999443931] [2022-11-16 12:26:24,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999443931] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:24,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:24,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:24,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319452623] [2022-11-16 12:26:24,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:24,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:24,588 INFO L87 Difference]: Start difference. First operand 864 states and 3411 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:26,580 INFO L93 Difference]: Finished difference Result 1200 states and 4517 transitions. [2022-11-16 12:26:26,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:26,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:26,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:26,584 INFO L225 Difference]: With dead ends: 1200 [2022-11-16 12:26:26,584 INFO L226 Difference]: Without dead ends: 1200 [2022-11-16 12:26:26,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:26,585 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:26,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:26:26,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-11-16 12:26:26,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 856. [2022-11-16 12:26:26,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.935672514619883) internal successors, (3365), 855 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3365 transitions. [2022-11-16 12:26:26,620 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3365 transitions. Word has length 24 [2022-11-16 12:26:26,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:26,620 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3365 transitions. [2022-11-16 12:26:26,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3365 transitions. [2022-11-16 12:26:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:26,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:26,622 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:26,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (171)] Ended with exit code 0 [2022-11-16 12:26:26,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 171 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:26,822 INFO L420 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2006324232, now seen corresponding path program 49 times [2022-11-16 12:26:26,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:26,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313695822] [2022-11-16 12:26:26,823 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:26:26,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:26,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:26,824 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:26,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (172)] Waiting until timeout for monitored process [2022-11-16 12:26:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:27,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:27,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:27,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:28,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:28,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:28,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313695822] [2022-11-16 12:26:28,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313695822] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:28,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:28,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:28,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474032811] [2022-11-16 12:26:28,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:28,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:28,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:28,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:28,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:28,742 INFO L87 Difference]: Start difference. First operand 856 states and 3365 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:31,082 INFO L93 Difference]: Finished difference Result 1146 states and 4319 transitions. [2022-11-16 12:26:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:31,086 INFO L225 Difference]: With dead ends: 1146 [2022-11-16 12:26:31,086 INFO L226 Difference]: Without dead ends: 1146 [2022-11-16 12:26:31,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:31,087 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:31,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:26:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-11-16 12:26:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 858. [2022-11-16 12:26:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9346557759626606) internal successors, (3372), 857 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3372 transitions. [2022-11-16 12:26:31,106 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3372 transitions. Word has length 24 [2022-11-16 12:26:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:31,107 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3372 transitions. [2022-11-16 12:26:31,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:31,107 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3372 transitions. [2022-11-16 12:26:31,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:31,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:31,109 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:31,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (172)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:31,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 172 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:31,309 INFO L420 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 684882802, now seen corresponding path program 50 times [2022-11-16 12:26:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471769991] [2022-11-16 12:26:31,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:26:31,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:31,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:31,311 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:31,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (173)] Waiting until timeout for monitored process [2022-11-16 12:26:31,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:26:31,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:31,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:31,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:32,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:32,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:32,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471769991] [2022-11-16 12:26:32,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471769991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:32,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:32,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480838564] [2022-11-16 12:26:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:32,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:32,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:32,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:32,392 INFO L87 Difference]: Start difference. First operand 858 states and 3372 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:33,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:33,481 INFO L93 Difference]: Finished difference Result 1010 states and 3798 transitions. [2022-11-16 12:26:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:33,484 INFO L225 Difference]: With dead ends: 1010 [2022-11-16 12:26:33,484 INFO L226 Difference]: Without dead ends: 1006 [2022-11-16 12:26:33,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:26:33,485 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:33,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:26:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-11-16 12:26:33,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 856. [2022-11-16 12:26:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.935672514619883) internal successors, (3365), 855 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3365 transitions. [2022-11-16 12:26:33,505 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3365 transitions. Word has length 24 [2022-11-16 12:26:33,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:33,506 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3365 transitions. [2022-11-16 12:26:33,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3365 transitions. [2022-11-16 12:26:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:33,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:33,508 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:33,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (173)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:33,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 173 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:33,708 INFO L420 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 217449847, now seen corresponding path program 34 times [2022-11-16 12:26:33,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:33,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759994892] [2022-11-16 12:26:33,709 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:26:33,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:33,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:33,710 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:33,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (174)] Waiting until timeout for monitored process [2022-11-16 12:26:34,265 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:26:34,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:34,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:34,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:34,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:35,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:35,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759994892] [2022-11-16 12:26:35,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759994892] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:35,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:35,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:35,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277044198] [2022-11-16 12:26:35,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:35,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:35,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:35,907 INFO L87 Difference]: Start difference. First operand 856 states and 3365 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:38,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:38,812 INFO L93 Difference]: Finished difference Result 1298 states and 4713 transitions. [2022-11-16 12:26:38,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:38,817 INFO L225 Difference]: With dead ends: 1298 [2022-11-16 12:26:38,817 INFO L226 Difference]: Without dead ends: 1298 [2022-11-16 12:26:38,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:38,817 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:38,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:26:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-11-16 12:26:38,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 858. [2022-11-16 12:26:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.9346557759626606) internal successors, (3372), 857 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:38,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3372 transitions. [2022-11-16 12:26:38,848 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3372 transitions. Word has length 24 [2022-11-16 12:26:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:38,848 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3372 transitions. [2022-11-16 12:26:38,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:38,848 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3372 transitions. [2022-11-16 12:26:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:38,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:38,850 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:38,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (174)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:39,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 174 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:39,051 INFO L420 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:39,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:39,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1069005391, now seen corresponding path program 35 times [2022-11-16 12:26:39,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:39,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504492511] [2022-11-16 12:26:39,052 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:26:39,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:39,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:39,053 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:39,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (175)] Waiting until timeout for monitored process [2022-11-16 12:26:39,565 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:26:39,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:39,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:39,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:40,070 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:40,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:40,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:40,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504492511] [2022-11-16 12:26:40,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504492511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:40,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:40,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:40,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068087207] [2022-11-16 12:26:40,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:40,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:40,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:40,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:40,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:40,071 INFO L87 Difference]: Start difference. First operand 858 states and 3372 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:41,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:41,123 INFO L93 Difference]: Finished difference Result 1018 states and 3811 transitions. [2022-11-16 12:26:41,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:41,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:41,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:41,126 INFO L225 Difference]: With dead ends: 1018 [2022-11-16 12:26:41,126 INFO L226 Difference]: Without dead ends: 1012 [2022-11-16 12:26:41,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:26:41,126 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:41,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:26:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-16 12:26:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 856. [2022-11-16 12:26:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.935672514619883) internal successors, (3365), 855 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:41,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3365 transitions. [2022-11-16 12:26:41,145 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3365 transitions. Word has length 24 [2022-11-16 12:26:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:41,145 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3365 transitions. [2022-11-16 12:26:41,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3365 transitions. [2022-11-16 12:26:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:41,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:41,147 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:41,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (175)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:41,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 175 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:41,348 INFO L420 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash -866567339, now seen corresponding path program 36 times [2022-11-16 12:26:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:41,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995220579] [2022-11-16 12:26:41,349 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:26:41,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:41,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:41,350 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:41,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (176)] Waiting until timeout for monitored process [2022-11-16 12:26:42,133 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:26:42,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:42,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:42,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:42,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:43,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:43,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:43,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995220579] [2022-11-16 12:26:43,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995220579] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:43,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:43,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:43,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233384694] [2022-11-16 12:26:43,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:43,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:43,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:43,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:43,565 INFO L87 Difference]: Start difference. First operand 856 states and 3365 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:45,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:45,962 INFO L93 Difference]: Finished difference Result 1256 states and 4606 transitions. [2022-11-16 12:26:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:45,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:45,967 INFO L225 Difference]: With dead ends: 1256 [2022-11-16 12:26:45,967 INFO L226 Difference]: Without dead ends: 1256 [2022-11-16 12:26:45,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:26:45,968 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:45,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:26:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2022-11-16 12:26:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 860. [2022-11-16 12:26:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.939464493597206) internal successors, (3384), 859 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3384 transitions. [2022-11-16 12:26:45,987 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3384 transitions. Word has length 24 [2022-11-16 12:26:45,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:45,987 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3384 transitions. [2022-11-16 12:26:45,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3384 transitions. [2022-11-16 12:26:45,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:45,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:45,989 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:46,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (176)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:46,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 176 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:46,190 INFO L420 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1620945494, now seen corresponding path program 51 times [2022-11-16 12:26:46,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:46,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543807410] [2022-11-16 12:26:46,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:26:46,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:46,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:46,192 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:46,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (177)] Waiting until timeout for monitored process [2022-11-16 12:26:46,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:26:46,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:46,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:46,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:47,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:47,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:47,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543807410] [2022-11-16 12:26:47,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543807410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:47,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:47,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:47,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532902661] [2022-11-16 12:26:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:47,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:47,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:47,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:47,302 INFO L87 Difference]: Start difference. First operand 860 states and 3384 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:48,438 INFO L93 Difference]: Finished difference Result 1044 states and 3881 transitions. [2022-11-16 12:26:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:48,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:48,442 INFO L225 Difference]: With dead ends: 1044 [2022-11-16 12:26:48,442 INFO L226 Difference]: Without dead ends: 1044 [2022-11-16 12:26:48,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:26:48,442 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:48,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:26:48,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-16 12:26:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 860. [2022-11-16 12:26:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.939464493597206) internal successors, (3384), 859 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3384 transitions. [2022-11-16 12:26:48,460 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3384 transitions. Word has length 24 [2022-11-16 12:26:48,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:48,460 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3384 transitions. [2022-11-16 12:26:48,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:48,461 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3384 transitions. [2022-11-16 12:26:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:48,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:48,462 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:48,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (177)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:48,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 177 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:48,663 INFO L420 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:48,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1222738380, now seen corresponding path program 52 times [2022-11-16 12:26:48,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:48,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766994895] [2022-11-16 12:26:48,664 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:26:48,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:48,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:48,665 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:48,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (178)] Waiting until timeout for monitored process [2022-11-16 12:26:49,204 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:26:49,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:49,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:49,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:49,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:49,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:49,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766994895] [2022-11-16 12:26:49,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766994895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:49,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:49,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:49,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642156422] [2022-11-16 12:26:49,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:49,706 INFO L87 Difference]: Start difference. First operand 860 states and 3384 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:50,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:50,709 INFO L93 Difference]: Finished difference Result 1006 states and 3789 transitions. [2022-11-16 12:26:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:50,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:50,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:50,712 INFO L225 Difference]: With dead ends: 1006 [2022-11-16 12:26:50,712 INFO L226 Difference]: Without dead ends: 1002 [2022-11-16 12:26:50,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:26:50,712 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:50,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:26:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-16 12:26:50,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 860. [2022-11-16 12:26:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.9348079161816063) internal successors, (3380), 859 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3380 transitions. [2022-11-16 12:26:50,728 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3380 transitions. Word has length 24 [2022-11-16 12:26:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:50,729 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3380 transitions. [2022-11-16 12:26:50,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3380 transitions. [2022-11-16 12:26:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:50,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:50,730 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:50,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (178)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:50,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 178 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:50,931 INFO L420 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1615020947, now seen corresponding path program 37 times [2022-11-16 12:26:50,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:50,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118969170] [2022-11-16 12:26:50,931 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:26:50,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:50,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:50,932 INFO L229 MonitoredProcess]: Starting monitored process 179 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:50,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (179)] Waiting until timeout for monitored process [2022-11-16 12:26:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:51,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:51,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:51,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:51,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:51,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118969170] [2022-11-16 12:26:51,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118969170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:51,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:51,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:26:51,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633798044] [2022-11-16 12:26:51,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:51,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:51,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:51,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:51,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:26:51,882 INFO L87 Difference]: Start difference. First operand 860 states and 3380 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:52,857 INFO L93 Difference]: Finished difference Result 1008 states and 3787 transitions. [2022-11-16 12:26:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:26:52,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:52,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:52,860 INFO L225 Difference]: With dead ends: 1008 [2022-11-16 12:26:52,860 INFO L226 Difference]: Without dead ends: 1002 [2022-11-16 12:26:52,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:26:52,861 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:52,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:26:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-16 12:26:52,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 854. [2022-11-16 12:26:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 853 states have (on average 3.929660023446659) internal successors, (3352), 853 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 3352 transitions. [2022-11-16 12:26:52,884 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 3352 transitions. Word has length 24 [2022-11-16 12:26:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:52,884 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 3352 transitions. [2022-11-16 12:26:52,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 3352 transitions. [2022-11-16 12:26:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:52,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:52,886 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:52,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (179)] Ended with exit code 0 [2022-11-16 12:26:53,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 179 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:53,087 INFO L420 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:53,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1176715091, now seen corresponding path program 38 times [2022-11-16 12:26:53,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:53,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456465157] [2022-11-16 12:26:53,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:26:53,087 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:53,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:53,088 INFO L229 MonitoredProcess]: Starting monitored process 180 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:53,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (180)] Waiting until timeout for monitored process [2022-11-16 12:26:53,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:26:53,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:53,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:53,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:53,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:54,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:54,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456465157] [2022-11-16 12:26:54,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456465157] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:26:54,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:26:54,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:26:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509170732] [2022-11-16 12:26:54,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:26:54,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:26:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:26:54,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:26:54,602 INFO L87 Difference]: Start difference. First operand 854 states and 3352 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:56,613 INFO L93 Difference]: Finished difference Result 1292 states and 4685 transitions. [2022-11-16 12:26:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:26:56,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:26:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:56,617 INFO L225 Difference]: With dead ends: 1292 [2022-11-16 12:26:56,617 INFO L226 Difference]: Without dead ends: 1292 [2022-11-16 12:26:56,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:56,617 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 81 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:56,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 0 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:26:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-11-16 12:26:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 856. [2022-11-16 12:26:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.9263157894736844) internal successors, (3357), 855 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:56,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3357 transitions. [2022-11-16 12:26:56,638 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3357 transitions. Word has length 24 [2022-11-16 12:26:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:56,638 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3357 transitions. [2022-11-16 12:26:56,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:56,638 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3357 transitions. [2022-11-16 12:26:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:26:56,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:56,640 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:56,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (180)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:56,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 180 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:56,841 INFO L420 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:26:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1029848517, now seen corresponding path program 39 times [2022-11-16 12:26:56,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:26:56,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840716485] [2022-11-16 12:26:56,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:26:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:26:56,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:26:56,843 INFO L229 MonitoredProcess]: Starting monitored process 181 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:26:56,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (181)] Waiting until timeout for monitored process [2022-11-16 12:26:57,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:26:57,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:26:57,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:26:57,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:57,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:57,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:26:58,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:26:58,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840716485] [2022-11-16 12:26:58,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840716485] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:58,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:58,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:26:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644251340] [2022-11-16 12:26:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:58,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:26:58,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:26:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:26:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:58,563 INFO L87 Difference]: Start difference. First operand 856 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:01,093 INFO L93 Difference]: Finished difference Result 1248 states and 4540 transitions. [2022-11-16 12:27:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:01,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:01,097 INFO L225 Difference]: With dead ends: 1248 [2022-11-16 12:27:01,097 INFO L226 Difference]: Without dead ends: 1248 [2022-11-16 12:27:01,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:27:01,098 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:01,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:27:01,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-16 12:27:01,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 858. [2022-11-16 12:27:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.925320886814469) internal successors, (3364), 857 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3364 transitions. [2022-11-16 12:27:01,117 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3364 transitions. Word has length 24 [2022-11-16 12:27:01,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:01,117 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3364 transitions. [2022-11-16 12:27:01,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,117 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3364 transitions. [2022-11-16 12:27:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:01,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:01,119 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:01,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (181)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:01,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 181 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:01,319 INFO L420 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:01,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash -178292973, now seen corresponding path program 40 times [2022-11-16 12:27:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:01,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021148631] [2022-11-16 12:27:01,320 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:27:01,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:01,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:01,321 INFO L229 MonitoredProcess]: Starting monitored process 182 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:01,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (182)] Waiting until timeout for monitored process [2022-11-16 12:27:01,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:27:01,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:01,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:01,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:02,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:27:02,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:02,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021148631] [2022-11-16 12:27:02,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021148631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:02,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:02,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:27:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789764932] [2022-11-16 12:27:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:02,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:02,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:02,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:02,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:27:02,235 INFO L87 Difference]: Start difference. First operand 858 states and 3364 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:03,358 INFO L93 Difference]: Finished difference Result 1008 states and 3778 transitions. [2022-11-16 12:27:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:03,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:03,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:03,362 INFO L225 Difference]: With dead ends: 1008 [2022-11-16 12:27:03,362 INFO L226 Difference]: Without dead ends: 1002 [2022-11-16 12:27:03,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:27:03,362 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:03,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:27:03,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-11-16 12:27:03,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 856. [2022-11-16 12:27:03,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.9263157894736844) internal successors, (3357), 855 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3357 transitions. [2022-11-16 12:27:03,380 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3357 transitions. Word has length 24 [2022-11-16 12:27:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3357 transitions. [2022-11-16 12:27:03,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3357 transitions. [2022-11-16 12:27:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:03,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:03,382 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:03,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (182)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:03,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 182 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:03,582 INFO L420 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:03,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:03,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1034669509, now seen corresponding path program 41 times [2022-11-16 12:27:03,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:03,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704111010] [2022-11-16 12:27:03,583 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:27:03,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:03,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:03,584 INFO L229 MonitoredProcess]: Starting monitored process 183 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:03,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (183)] Waiting until timeout for monitored process [2022-11-16 12:27:04,148 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:27:04,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:04,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:04,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:04,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:04,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:04,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704111010] [2022-11-16 12:27:04,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704111010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:04,843 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:27:04,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-11-16 12:27:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337260449] [2022-11-16 12:27:04,843 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:04,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:27:04,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:27:04,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:27:04,844 INFO L87 Difference]: Start difference. First operand 856 states and 3357 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:06,165 INFO L93 Difference]: Finished difference Result 1040 states and 3850 transitions. [2022-11-16 12:27:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:06,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:06,169 INFO L225 Difference]: With dead ends: 1040 [2022-11-16 12:27:06,169 INFO L226 Difference]: Without dead ends: 1040 [2022-11-16 12:27:06,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:27:06,169 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:06,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:27:06,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-11-16 12:27:06,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 858. [2022-11-16 12:27:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.922987164527421) internal successors, (3362), 857 states have internal predecessors, (3362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3362 transitions. [2022-11-16 12:27:06,186 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3362 transitions. Word has length 24 [2022-11-16 12:27:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:06,186 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3362 transitions. [2022-11-16 12:27:06,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3362 transitions. [2022-11-16 12:27:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:06,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:06,188 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:06,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (183)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:06,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 183 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:06,389 INFO L420 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:06,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:06,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1171894099, now seen corresponding path program 42 times [2022-11-16 12:27:06,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:06,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861098723] [2022-11-16 12:27:06,389 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:27:06,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:06,390 INFO L229 MonitoredProcess]: Starting monitored process 184 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:06,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (184)] Waiting until timeout for monitored process [2022-11-16 12:27:07,078 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:27:07,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:07,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:07,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:07,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:07,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:07,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861098723] [2022-11-16 12:27:07,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861098723] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:07,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:07,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:27:07,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607346454] [2022-11-16 12:27:07,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:07,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:07,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:07,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:07,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:07,901 INFO L87 Difference]: Start difference. First operand 858 states and 3362 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:09,112 INFO L93 Difference]: Finished difference Result 1088 states and 3957 transitions. [2022-11-16 12:27:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:09,115 INFO L225 Difference]: With dead ends: 1088 [2022-11-16 12:27:09,115 INFO L226 Difference]: Without dead ends: 1088 [2022-11-16 12:27:09,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:27:09,116 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:09,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:27:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2022-11-16 12:27:09,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 860. [2022-11-16 12:27:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.9220023282887078) internal successors, (3369), 859 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3369 transitions. [2022-11-16 12:27:09,137 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3369 transitions. Word has length 24 [2022-11-16 12:27:09,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:09,137 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3369 transitions. [2022-11-16 12:27:09,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3369 transitions. [2022-11-16 12:27:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:09,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:09,139 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:09,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (184)] Ended with exit code 0 [2022-11-16 12:27:09,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 184 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:09,339 INFO L420 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:09,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:09,339 INFO L85 PathProgramCache]: Analyzing trace with hash -320338555, now seen corresponding path program 43 times [2022-11-16 12:27:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:09,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164742290] [2022-11-16 12:27:09,340 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:27:09,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:09,341 INFO L229 MonitoredProcess]: Starting monitored process 185 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:09,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (185)] Waiting until timeout for monitored process [2022-11-16 12:27:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:09,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:09,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:10,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:27:10,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:10,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164742290] [2022-11-16 12:27:10,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164742290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:10,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:10,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:27:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130668364] [2022-11-16 12:27:10,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:27:10,133 INFO L87 Difference]: Start difference. First operand 860 states and 3369 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:11,046 INFO L93 Difference]: Finished difference Result 966 states and 3632 transitions. [2022-11-16 12:27:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:11,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:11,049 INFO L225 Difference]: With dead ends: 966 [2022-11-16 12:27:11,049 INFO L226 Difference]: Without dead ends: 960 [2022-11-16 12:27:11,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:11,049 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:11,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:27:11,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-11-16 12:27:11,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 856. [2022-11-16 12:27:11,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.9263157894736844) internal successors, (3357), 855 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3357 transitions. [2022-11-16 12:27:11,073 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3357 transitions. Word has length 24 [2022-11-16 12:27:11,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:11,074 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3357 transitions. [2022-11-16 12:27:11,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,074 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3357 transitions. [2022-11-16 12:27:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:11,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:11,076 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:11,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (185)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:11,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 185 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:11,291 INFO L420 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash 672740923, now seen corresponding path program 44 times [2022-11-16 12:27:11,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:11,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647123093] [2022-11-16 12:27:11,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:27:11,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:11,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:11,293 INFO L229 MonitoredProcess]: Starting monitored process 186 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:11,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (186)] Waiting until timeout for monitored process [2022-11-16 12:27:11,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:27:11,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:11,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:11,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:12,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:12,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:12,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647123093] [2022-11-16 12:27:12,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647123093] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:12,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:12,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:27:12,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44024194] [2022-11-16 12:27:12,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:12,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:12,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:12,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:12,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:12,915 INFO L87 Difference]: Start difference. First operand 856 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:14,599 INFO L93 Difference]: Finished difference Result 1042 states and 3805 transitions. [2022-11-16 12:27:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:14,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:14,603 INFO L225 Difference]: With dead ends: 1042 [2022-11-16 12:27:14,603 INFO L226 Difference]: Without dead ends: 1042 [2022-11-16 12:27:14,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:27:14,604 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:14,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:27:14,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-11-16 12:27:14,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 858. [2022-11-16 12:27:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 3.925320886814469) internal successors, (3364), 857 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 3364 transitions. [2022-11-16 12:27:14,623 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 3364 transitions. Word has length 24 [2022-11-16 12:27:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:14,623 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 3364 transitions. [2022-11-16 12:27:14,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 3364 transitions. [2022-11-16 12:27:14,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:14,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:14,625 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:14,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (186)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:14,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 186 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:14,825 INFO L420 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:14,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:14,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1524296467, now seen corresponding path program 45 times [2022-11-16 12:27:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:14,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500570641] [2022-11-16 12:27:14,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:27:14,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:14,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:14,827 INFO L229 MonitoredProcess]: Starting monitored process 187 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:14,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (187)] Waiting until timeout for monitored process [2022-11-16 12:27:15,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:27:15,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:15,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:15,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:15,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:27:15,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:15,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500570641] [2022-11-16 12:27:15,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500570641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:15,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:15,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:27:15,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905455581] [2022-11-16 12:27:15,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:15,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:15,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:27:15,766 INFO L87 Difference]: Start difference. First operand 858 states and 3364 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:16,971 INFO L93 Difference]: Finished difference Result 1014 states and 3736 transitions. [2022-11-16 12:27:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:16,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:16,974 INFO L225 Difference]: With dead ends: 1014 [2022-11-16 12:27:16,974 INFO L226 Difference]: Without dead ends: 1008 [2022-11-16 12:27:16,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:16,975 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:16,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:27:16,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-11-16 12:27:16,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 856. [2022-11-16 12:27:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 3.9263157894736844) internal successors, (3357), 855 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 3357 transitions. [2022-11-16 12:27:16,994 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 3357 transitions. Word has length 24 [2022-11-16 12:27:16,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:16,994 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 3357 transitions. [2022-11-16 12:27:16,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 3357 transitions. [2022-11-16 12:27:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:16,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:16,996 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:17,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (187)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:17,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 187 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:17,196 INFO L420 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:17,197 INFO L85 PathProgramCache]: Analyzing trace with hash 522107039, now seen corresponding path program 46 times [2022-11-16 12:27:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:17,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626387497] [2022-11-16 12:27:17,198 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:27:17,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:17,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:17,199 INFO L229 MonitoredProcess]: Starting monitored process 188 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:17,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (188)] Waiting until timeout for monitored process [2022-11-16 12:27:17,814 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:27:17,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:17,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:17,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:18,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:27:18,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:18,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626387497] [2022-11-16 12:27:18,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [626387497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:18,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:18,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:27:18,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310781873] [2022-11-16 12:27:18,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:18,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:18,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:18,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:18,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:27:18,029 INFO L87 Difference]: Start difference. First operand 856 states and 3357 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:19,039 INFO L93 Difference]: Finished difference Result 1006 states and 3718 transitions. [2022-11-16 12:27:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:19,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:19,042 INFO L225 Difference]: With dead ends: 1006 [2022-11-16 12:27:19,042 INFO L226 Difference]: Without dead ends: 992 [2022-11-16 12:27:19,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:19,043 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:19,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:27:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-11-16 12:27:19,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 852. [2022-11-16 12:27:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.929494712103408) internal successors, (3344), 851 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3344 transitions. [2022-11-16 12:27:19,072 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3344 transitions. Word has length 24 [2022-11-16 12:27:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:19,072 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3344 transitions. [2022-11-16 12:27:19,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:19,072 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3344 transitions. [2022-11-16 12:27:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:19,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:19,074 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:19,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (188)] Ended with exit code 0 [2022-11-16 12:27:19,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 188 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:19,275 INFO L420 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1211883703, now seen corresponding path program 47 times [2022-11-16 12:27:19,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:19,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590184499] [2022-11-16 12:27:19,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:27:19,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:19,277 INFO L229 MonitoredProcess]: Starting monitored process 189 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (189)] Waiting until timeout for monitored process [2022-11-16 12:27:19,797 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:27:19,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:19,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:19,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:20,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:20,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:20,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590184499] [2022-11-16 12:27:20,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590184499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:20,631 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:27:20,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:27:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594740581] [2022-11-16 12:27:20,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:20,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:20,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:20,632 INFO L87 Difference]: Start difference. First operand 852 states and 3344 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:21,984 INFO L93 Difference]: Finished difference Result 1168 states and 4418 transitions. [2022-11-16 12:27:21,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:21,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:21,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:21,988 INFO L225 Difference]: With dead ends: 1168 [2022-11-16 12:27:21,988 INFO L226 Difference]: Without dead ends: 1168 [2022-11-16 12:27:21,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:21,989 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 103 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:21,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 0 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:27:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-11-16 12:27:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 868. [2022-11-16 12:27:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 3.9538638985005767) internal successors, (3428), 867 states have internal predecessors, (3428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 3428 transitions. [2022-11-16 12:27:22,005 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 3428 transitions. Word has length 24 [2022-11-16 12:27:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:22,005 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 3428 transitions. [2022-11-16 12:27:22,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 3428 transitions. [2022-11-16 12:27:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:22,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:22,007 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:22,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (189)] Ended with exit code 0 [2022-11-16 12:27:22,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 189 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:22,208 INFO L420 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:22,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash -356577049, now seen corresponding path program 48 times [2022-11-16 12:27:22,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:22,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152630498] [2022-11-16 12:27:22,208 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:27:22,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:22,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:22,209 INFO L229 MonitoredProcess]: Starting monitored process 190 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:22,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (190)] Waiting until timeout for monitored process [2022-11-16 12:27:22,784 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:27:22,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:22,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:22,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:23,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:23,636 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:23,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:23,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152630498] [2022-11-16 12:27:23,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152630498] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:23,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:27:23,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:27:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862188917] [2022-11-16 12:27:23,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:23,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:27:23,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:23,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:27:23,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:23,637 INFO L87 Difference]: Start difference. First operand 868 states and 3428 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:25,469 INFO L93 Difference]: Finished difference Result 1184 states and 4466 transitions. [2022-11-16 12:27:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:25,474 INFO L225 Difference]: With dead ends: 1184 [2022-11-16 12:27:25,474 INFO L226 Difference]: Without dead ends: 1184 [2022-11-16 12:27:25,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:25,474 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 83 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:25,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 0 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:27:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-11-16 12:27:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 860. [2022-11-16 12:27:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.937136204889406) internal successors, (3382), 859 states have internal predecessors, (3382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3382 transitions. [2022-11-16 12:27:25,494 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3382 transitions. Word has length 24 [2022-11-16 12:27:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:25,494 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3382 transitions. [2022-11-16 12:27:25,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3382 transitions. [2022-11-16 12:27:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:25,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:25,497 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:25,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (190)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:25,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 190 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:25,697 INFO L420 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:25,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:25,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1913180501, now seen corresponding path program 49 times [2022-11-16 12:27:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:25,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520621568] [2022-11-16 12:27:25,698 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:27:25,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:25,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:25,701 INFO L229 MonitoredProcess]: Starting monitored process 191 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:25,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (191)] Waiting until timeout for monitored process [2022-11-16 12:27:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:26,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:26,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:26,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:26,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:26,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520621568] [2022-11-16 12:27:26,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520621568] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:26,843 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:27:26,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-11-16 12:27:26,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271389466] [2022-11-16 12:27:26,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:26,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:27:26,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:26,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:27:26,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:27:26,844 INFO L87 Difference]: Start difference. First operand 860 states and 3382 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:28,157 INFO L93 Difference]: Finished difference Result 1126 states and 4282 transitions. [2022-11-16 12:27:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:28,160 INFO L225 Difference]: With dead ends: 1126 [2022-11-16 12:27:28,160 INFO L226 Difference]: Without dead ends: 1126 [2022-11-16 12:27:28,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:28,161 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 81 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:28,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 0 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:27:28,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-16 12:27:28,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 852. [2022-11-16 12:27:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.929494712103408) internal successors, (3344), 851 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3344 transitions. [2022-11-16 12:27:28,180 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3344 transitions. Word has length 24 [2022-11-16 12:27:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:28,180 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3344 transitions. [2022-11-16 12:27:28,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3344 transitions. [2022-11-16 12:27:28,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:28,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:28,181 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:28,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (191)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:28,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 191 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:28,382 INFO L420 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1942332697, now seen corresponding path program 50 times [2022-11-16 12:27:28,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490586977] [2022-11-16 12:27:28,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:27:28,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:28,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:28,384 INFO L229 MonitoredProcess]: Starting monitored process 192 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:28,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (192)] Waiting until timeout for monitored process [2022-11-16 12:27:29,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:27:29,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:29,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:29,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:29,411 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:29,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:29,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:29,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490586977] [2022-11-16 12:27:29,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490586977] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:29,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:29,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:27:29,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627965195] [2022-11-16 12:27:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:29,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:29,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:29,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:29,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:29,929 INFO L87 Difference]: Start difference. First operand 852 states and 3344 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:31,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:31,584 INFO L93 Difference]: Finished difference Result 1170 states and 4380 transitions. [2022-11-16 12:27:31,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:31,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:31,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:31,588 INFO L225 Difference]: With dead ends: 1170 [2022-11-16 12:27:31,588 INFO L226 Difference]: Without dead ends: 1170 [2022-11-16 12:27:31,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:27:31,588 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:31,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:27:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-11-16 12:27:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 868. [2022-11-16 12:27:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 3.9538638985005767) internal successors, (3428), 867 states have internal predecessors, (3428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 3428 transitions. [2022-11-16 12:27:31,617 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 3428 transitions. Word has length 24 [2022-11-16 12:27:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:31,617 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 3428 transitions. [2022-11-16 12:27:31,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:31,618 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 3428 transitions. [2022-11-16 12:27:31,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:31,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:31,619 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:31,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (192)] Ended with exit code 0 [2022-11-16 12:27:31,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 192 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:31,823 INFO L420 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:31,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:31,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1087026043, now seen corresponding path program 51 times [2022-11-16 12:27:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:31,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552624443] [2022-11-16 12:27:31,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:27:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:31,825 INFO L229 MonitoredProcess]: Starting monitored process 193 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:31,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (193)] Waiting until timeout for monitored process [2022-11-16 12:27:32,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:27:32,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:32,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:32,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:32,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:33,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:33,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552624443] [2022-11-16 12:27:33,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552624443] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:33,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:33,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:27:33,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401558404] [2022-11-16 12:27:33,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:33,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:33,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:33,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:33,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:33,190 INFO L87 Difference]: Start difference. First operand 868 states and 3428 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:35,110 INFO L93 Difference]: Finished difference Result 1144 states and 4312 transitions. [2022-11-16 12:27:35,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:35,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:35,114 INFO L225 Difference]: With dead ends: 1144 [2022-11-16 12:27:35,114 INFO L226 Difference]: Without dead ends: 1144 [2022-11-16 12:27:35,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:27:35,115 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:35,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:27:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-11-16 12:27:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 860. [2022-11-16 12:27:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.937136204889406) internal successors, (3382), 859 states have internal predecessors, (3382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3382 transitions. [2022-11-16 12:27:35,134 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3382 transitions. Word has length 24 [2022-11-16 12:27:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:35,135 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3382 transitions. [2022-11-16 12:27:35,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3382 transitions. [2022-11-16 12:27:35,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:35,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:35,137 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:35,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (193)] Ended with exit code 0 [2022-11-16 12:27:35,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 193 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:35,338 INFO L420 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:35,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:35,338 INFO L85 PathProgramCache]: Analyzing trace with hash 796031147, now seen corresponding path program 52 times [2022-11-16 12:27:35,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:35,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194429442] [2022-11-16 12:27:35,339 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:27:35,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:35,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:35,340 INFO L229 MonitoredProcess]: Starting monitored process 194 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:35,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (194)] Waiting until timeout for monitored process [2022-11-16 12:27:35,900 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:27:35,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:35,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:35,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:36,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:36,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:36,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194429442] [2022-11-16 12:27:36,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194429442] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:36,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:36,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2022-11-16 12:27:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725548190] [2022-11-16 12:27:36,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:36,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:36,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:36,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:36,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:27:36,425 INFO L87 Difference]: Start difference. First operand 860 states and 3382 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:37,791 INFO L93 Difference]: Finished difference Result 1086 states and 4136 transitions. [2022-11-16 12:27:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:37,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:37,795 INFO L225 Difference]: With dead ends: 1086 [2022-11-16 12:27:37,795 INFO L226 Difference]: Without dead ends: 1086 [2022-11-16 12:27:37,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:27:37,796 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:37,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:27:37,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-11-16 12:27:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 852. [2022-11-16 12:27:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.929494712103408) internal successors, (3344), 851 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3344 transitions. [2022-11-16 12:27:37,814 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3344 transitions. Word has length 24 [2022-11-16 12:27:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:37,814 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3344 transitions. [2022-11-16 12:27:37,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3344 transitions. [2022-11-16 12:27:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:37,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:37,816 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:37,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (194)] Ended with exit code 0 [2022-11-16 12:27:38,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 194 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:38,017 INFO L420 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:38,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1620023105, now seen corresponding path program 53 times [2022-11-16 12:27:38,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:38,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569486557] [2022-11-16 12:27:38,018 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:27:38,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:38,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:38,019 INFO L229 MonitoredProcess]: Starting monitored process 195 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:38,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (195)] Waiting until timeout for monitored process [2022-11-16 12:27:38,633 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:27:38,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:38,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:38,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:39,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:39,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:39,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569486557] [2022-11-16 12:27:39,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569486557] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:39,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:39,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:27:39,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635815356] [2022-11-16 12:27:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:39,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:39,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:39,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:39,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:39,802 INFO L87 Difference]: Start difference. First operand 852 states and 3344 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:41,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:41,702 INFO L93 Difference]: Finished difference Result 1372 states and 5225 transitions. [2022-11-16 12:27:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:41,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:41,706 INFO L225 Difference]: With dead ends: 1372 [2022-11-16 12:27:41,706 INFO L226 Difference]: Without dead ends: 1372 [2022-11-16 12:27:41,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:27:41,706 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:41,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:27:41,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-11-16 12:27:41,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 860. [2022-11-16 12:27:41,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 859 states have (on average 3.946449359720605) internal successors, (3390), 859 states have internal predecessors, (3390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 3390 transitions. [2022-11-16 12:27:41,725 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 3390 transitions. Word has length 24 [2022-11-16 12:27:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:41,725 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 3390 transitions. [2022-11-16 12:27:41,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:41,725 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 3390 transitions. [2022-11-16 12:27:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:41,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:41,726 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:41,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (195)] Ended with exit code 0 [2022-11-16 12:27:41,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 195 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:41,927 INFO L420 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:41,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:41,927 INFO L85 PathProgramCache]: Analyzing trace with hash -764716451, now seen corresponding path program 54 times [2022-11-16 12:27:41,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:41,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333823960] [2022-11-16 12:27:41,928 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:27:41,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:41,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:41,929 INFO L229 MonitoredProcess]: Starting monitored process 196 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:41,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (196)] Waiting until timeout for monitored process [2022-11-16 12:27:42,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:27:42,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:42,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:42,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:43,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:43,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:43,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333823960] [2022-11-16 12:27:43,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333823960] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:43,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:43,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:27:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34142161] [2022-11-16 12:27:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:43,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:43,887 INFO L87 Difference]: Start difference. First operand 860 states and 3390 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:46,086 INFO L93 Difference]: Finished difference Result 1394 states and 5291 transitions. [2022-11-16 12:27:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:46,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:46,091 INFO L225 Difference]: With dead ends: 1394 [2022-11-16 12:27:46,091 INFO L226 Difference]: Without dead ends: 1394 [2022-11-16 12:27:46,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:27:46,091 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:46,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:27:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-11-16 12:27:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 852. [2022-11-16 12:27:46,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.929494712103408) internal successors, (3344), 851 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3344 transitions. [2022-11-16 12:27:46,111 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3344 transitions. Word has length 24 [2022-11-16 12:27:46,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:46,111 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3344 transitions. [2022-11-16 12:27:46,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:46,111 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3344 transitions. [2022-11-16 12:27:46,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:46,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:46,113 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:46,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (196)] Ended with exit code 0 [2022-11-16 12:27:46,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 196 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:46,313 INFO L420 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:46,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1973647393, now seen corresponding path program 55 times [2022-11-16 12:27:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:46,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469133780] [2022-11-16 12:27:46,314 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:27:46,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:46,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:46,315 INFO L229 MonitoredProcess]: Starting monitored process 197 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:46,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (197)] Waiting until timeout for monitored process [2022-11-16 12:27:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:46,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:46,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:47,111 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:47,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:47,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:47,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469133780] [2022-11-16 12:27:47,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469133780] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:47,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:47,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:27:47,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618661722] [2022-11-16 12:27:47,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:47,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:27:47,610 INFO L87 Difference]: Start difference. First operand 852 states and 3344 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:49,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:49,189 INFO L93 Difference]: Finished difference Result 1452 states and 5462 transitions. [2022-11-16 12:27:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:49,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:49,194 INFO L225 Difference]: With dead ends: 1452 [2022-11-16 12:27:49,195 INFO L226 Difference]: Without dead ends: 1452 [2022-11-16 12:27:49,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:27:49,195 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:49,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:27:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2022-11-16 12:27:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 844. [2022-11-16 12:27:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:27:49,214 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:27:49,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:49,214 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:27:49,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:27:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:49,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:49,216 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:49,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (197)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:49,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 197 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:49,417 INFO L420 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:49,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1753517986, now seen corresponding path program 53 times [2022-11-16 12:27:49,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:49,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144278688] [2022-11-16 12:27:49,418 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:27:49,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:49,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:49,418 INFO L229 MonitoredProcess]: Starting monitored process 198 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:49,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (198)] Waiting until timeout for monitored process [2022-11-16 12:27:49,970 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:27:49,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:49,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:49,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:50,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:51,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144278688] [2022-11-16 12:27:51,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144278688] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:51,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:51,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:27:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887762879] [2022-11-16 12:27:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:51,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:51,302 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:53,612 INFO L93 Difference]: Finished difference Result 1064 states and 3926 transitions. [2022-11-16 12:27:53,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:53,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:53,616 INFO L225 Difference]: With dead ends: 1064 [2022-11-16 12:27:53,616 INFO L226 Difference]: Without dead ends: 1064 [2022-11-16 12:27:53,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:27:53,616 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:53,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:27:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-16 12:27:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 844. [2022-11-16 12:27:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:27:53,632 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:27:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:53,632 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:27:53,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:27:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:53,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:53,634 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:53,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (198)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:53,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 198 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:53,835 INFO L420 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:53,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1356533737, now seen corresponding path program 56 times [2022-11-16 12:27:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:53,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131585054] [2022-11-16 12:27:53,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:27:53,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:53,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:53,836 INFO L229 MonitoredProcess]: Starting monitored process 199 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:53,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (199)] Waiting until timeout for monitored process [2022-11-16 12:27:54,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:27:54,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:54,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:54,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:54,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:55,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:27:55,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131585054] [2022-11-16 12:27:55,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131585054] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:55,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:27:55,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:27:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799421433] [2022-11-16 12:27:55,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:27:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:27:55,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:27:55,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:27:55,918 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:57,959 INFO L93 Difference]: Finished difference Result 1310 states and 4870 transitions. [2022-11-16 12:27:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:27:57,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:27:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:57,963 INFO L225 Difference]: With dead ends: 1310 [2022-11-16 12:27:57,963 INFO L226 Difference]: Without dead ends: 1310 [2022-11-16 12:27:57,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:27:57,964 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:57,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:27:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-11-16 12:27:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 852. [2022-11-16 12:27:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.938895417156287) internal successors, (3352), 851 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3352 transitions. [2022-11-16 12:27:57,990 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3352 transitions. Word has length 24 [2022-11-16 12:27:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:57,990 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3352 transitions. [2022-11-16 12:27:57,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3352 transitions. [2022-11-16 12:27:57,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:27:57,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:57,992 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:58,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (199)] Ended with exit code 0 [2022-11-16 12:27:58,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 199 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:58,193 INFO L420 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:27:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash -501227083, now seen corresponding path program 57 times [2022-11-16 12:27:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:27:58,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309160218] [2022-11-16 12:27:58,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:27:58,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:27:58,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:27:58,195 INFO L229 MonitoredProcess]: Starting monitored process 200 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:27:58,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (200)] Waiting until timeout for monitored process [2022-11-16 12:27:58,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:27:58,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:58,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:27:58,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:27:59,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:00,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:00,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309160218] [2022-11-16 12:28:00,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309160218] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:00,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:00,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:00,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282189195] [2022-11-16 12:28:00,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:00,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:00,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:00,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:00,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:00,278 INFO L87 Difference]: Start difference. First operand 852 states and 3352 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:02,208 INFO L93 Difference]: Finished difference Result 1326 states and 4921 transitions. [2022-11-16 12:28:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:02,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:02,211 INFO L225 Difference]: With dead ends: 1326 [2022-11-16 12:28:02,212 INFO L226 Difference]: Without dead ends: 1326 [2022-11-16 12:28:02,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:02,212 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:02,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:28:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-11-16 12:28:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 844. [2022-11-16 12:28:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:28:02,240 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:28:02,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:02,240 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:28:02,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:28:02,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:02,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:02,242 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:02,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (200)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:02,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 200 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:02,442 INFO L420 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:02,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:02,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1553047242, now seen corresponding path program 54 times [2022-11-16 12:28:02,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125167203] [2022-11-16 12:28:02,443 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:28:02,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:02,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:02,444 INFO L229 MonitoredProcess]: Starting monitored process 201 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:02,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (201)] Waiting until timeout for monitored process [2022-11-16 12:28:03,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:28:03,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:03,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:03,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:03,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:04,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125167203] [2022-11-16 12:28:04,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125167203] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:04,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:04,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:04,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371483053] [2022-11-16 12:28:04,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:04,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:04,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:04,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:04,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:04,884 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:07,472 INFO L93 Difference]: Finished difference Result 1108 states and 4072 transitions. [2022-11-16 12:28:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:07,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:07,475 INFO L225 Difference]: With dead ends: 1108 [2022-11-16 12:28:07,475 INFO L226 Difference]: Without dead ends: 1108 [2022-11-16 12:28:07,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:07,476 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:07,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:28:07,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2022-11-16 12:28:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 852. [2022-11-16 12:28:07,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 851 states have (on average 3.938895417156287) internal successors, (3352), 851 states have internal predecessors, (3352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 3352 transitions. [2022-11-16 12:28:07,494 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 3352 transitions. Word has length 24 [2022-11-16 12:28:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:07,494 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 3352 transitions. [2022-11-16 12:28:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 3352 transitions. [2022-11-16 12:28:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:07,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:07,496 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:07,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (201)] Ended with exit code 0 [2022-11-16 12:28:07,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 201 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:07,696 INFO L420 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:07,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:07,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1792689580, now seen corresponding path program 55 times [2022-11-16 12:28:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:07,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978982914] [2022-11-16 12:28:07,697 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:28:07,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:07,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:07,698 INFO L229 MonitoredProcess]: Starting monitored process 202 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:07,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (202)] Waiting until timeout for monitored process [2022-11-16 12:28:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:08,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:08,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:08,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:09,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:09,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978982914] [2022-11-16 12:28:09,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978982914] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:09,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:09,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:09,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914480076] [2022-11-16 12:28:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:09,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:09,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:09,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:09,916 INFO L87 Difference]: Start difference. First operand 852 states and 3352 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:12,119 INFO L93 Difference]: Finished difference Result 1118 states and 4102 transitions. [2022-11-16 12:28:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:12,123 INFO L225 Difference]: With dead ends: 1118 [2022-11-16 12:28:12,123 INFO L226 Difference]: Without dead ends: 1118 [2022-11-16 12:28:12,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:28:12,124 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:12,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 0 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:28:12,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-16 12:28:12,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 844. [2022-11-16 12:28:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:28:12,141 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:28:12,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:12,141 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:28:12,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:28:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:12,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:12,143 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:12,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (202)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:12,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 202 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:12,344 INFO L420 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:12,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:12,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1012565888, now seen corresponding path program 56 times [2022-11-16 12:28:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:12,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025933209] [2022-11-16 12:28:12,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:12,345 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:12,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:12,346 INFO L229 MonitoredProcess]: Starting monitored process 203 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:12,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (203)] Waiting until timeout for monitored process [2022-11-16 12:28:13,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:13,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:13,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:13,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:13,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:14,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:14,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025933209] [2022-11-16 12:28:14,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025933209] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:14,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:14,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:14,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444470816] [2022-11-16 12:28:14,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:14,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:14,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:14,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:14,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:14,444 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:16,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:16,848 INFO L93 Difference]: Finished difference Result 1152 states and 4180 transitions. [2022-11-16 12:28:16,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:16,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:16,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:16,852 INFO L225 Difference]: With dead ends: 1152 [2022-11-16 12:28:16,852 INFO L226 Difference]: Without dead ends: 1152 [2022-11-16 12:28:16,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:16,853 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:16,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:28:16,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-16 12:28:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 844. [2022-11-16 12:28:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:28:16,870 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:28:16,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:16,870 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:28:16,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:16,870 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:28:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:16,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:16,872 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:16,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (203)] Ended with exit code 0 [2022-11-16 12:28:17,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 203 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:17,072 INFO L420 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:17,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:17,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1211208191, now seen corresponding path program 58 times [2022-11-16 12:28:17,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:17,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649385974] [2022-11-16 12:28:17,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:28:17,073 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:17,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:17,074 INFO L229 MonitoredProcess]: Starting monitored process 204 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:17,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (204)] Waiting until timeout for monitored process [2022-11-16 12:28:17,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:28:17,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:17,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:17,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:18,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:18,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:18,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649385974] [2022-11-16 12:28:18,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649385974] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:18,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:18,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:18,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491352746] [2022-11-16 12:28:18,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:18,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:18,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:18,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:18,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:18,787 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:20,676 INFO L93 Difference]: Finished difference Result 1228 states and 4597 transitions. [2022-11-16 12:28:20,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:20,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:20,680 INFO L225 Difference]: With dead ends: 1228 [2022-11-16 12:28:20,680 INFO L226 Difference]: Without dead ends: 1228 [2022-11-16 12:28:20,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:20,680 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:20,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:28:20,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2022-11-16 12:28:20,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 846. [2022-11-16 12:28:20,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 3.9207100591715975) internal successors, (3313), 845 states have internal predecessors, (3313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 3313 transitions. [2022-11-16 12:28:20,697 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 3313 transitions. Word has length 24 [2022-11-16 12:28:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:20,697 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 3313 transitions. [2022-11-16 12:28:20,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:20,697 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 3313 transitions. [2022-11-16 12:28:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:20,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:20,699 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:20,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (204)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:20,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 204 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:20,899 INFO L420 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:20,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:20,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2062763735, now seen corresponding path program 59 times [2022-11-16 12:28:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:20,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916484610] [2022-11-16 12:28:20,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:28:20,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:20,901 INFO L229 MonitoredProcess]: Starting monitored process 205 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:20,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (205)] Waiting until timeout for monitored process [2022-11-16 12:28:21,437 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:28:21,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:21,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:21,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:21,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:21,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916484610] [2022-11-16 12:28:21,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916484610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:21,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:21,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381879072] [2022-11-16 12:28:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:21,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:21,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:21,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:21,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:21,833 INFO L87 Difference]: Start difference. First operand 846 states and 3313 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:22,763 INFO L93 Difference]: Finished difference Result 1024 states and 3815 transitions. [2022-11-16 12:28:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:22,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:22,766 INFO L225 Difference]: With dead ends: 1024 [2022-11-16 12:28:22,766 INFO L226 Difference]: Without dead ends: 1018 [2022-11-16 12:28:22,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:28:22,766 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 58 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:22,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:28:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2022-11-16 12:28:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 844. [2022-11-16 12:28:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 843 states have (on average 3.921708185053381) internal successors, (3306), 843 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 3306 transitions. [2022-11-16 12:28:22,783 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 3306 transitions. Word has length 24 [2022-11-16 12:28:22,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:22,783 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 3306 transitions. [2022-11-16 12:28:22,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 3306 transitions. [2022-11-16 12:28:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:22,785 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:22,785 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:22,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (205)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:22,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 205 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:22,986 INFO L420 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:22,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:22,986 INFO L85 PathProgramCache]: Analyzing trace with hash 127191005, now seen corresponding path program 60 times [2022-11-16 12:28:22,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:22,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079311717] [2022-11-16 12:28:22,986 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:28:22,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:22,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:22,988 INFO L229 MonitoredProcess]: Starting monitored process 206 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:22,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (206)] Waiting until timeout for monitored process [2022-11-16 12:28:23,820 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:28:23,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:23,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:23,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:24,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:25,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079311717] [2022-11-16 12:28:25,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079311717] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:25,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:25,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:25,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200869382] [2022-11-16 12:28:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:25,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:25,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:25,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:25,202 INFO L87 Difference]: Start difference. First operand 844 states and 3306 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:27,556 INFO L93 Difference]: Finished difference Result 1268 states and 4713 transitions. [2022-11-16 12:28:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:27,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:27,560 INFO L225 Difference]: With dead ends: 1268 [2022-11-16 12:28:27,560 INFO L226 Difference]: Without dead ends: 1268 [2022-11-16 12:28:27,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:27,560 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:27,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:28:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-11-16 12:28:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 848. [2022-11-16 12:28:27,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 3.9208972845336483) internal successors, (3321), 847 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 3321 transitions. [2022-11-16 12:28:27,588 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 3321 transitions. Word has length 24 [2022-11-16 12:28:27,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:27,589 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 3321 transitions. [2022-11-16 12:28:27,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 3321 transitions. [2022-11-16 12:28:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:27,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:27,591 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:27,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (206)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:27,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 206 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:27,806 INFO L420 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:27,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:27,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1680263458, now seen corresponding path program 57 times [2022-11-16 12:28:27,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:27,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868619259] [2022-11-16 12:28:27,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:28:27,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:27,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:27,808 INFO L229 MonitoredProcess]: Starting monitored process 207 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:27,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (207)] Waiting until timeout for monitored process [2022-11-16 12:28:28,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:28:28,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:28,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:28,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:28,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:28,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:28,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868619259] [2022-11-16 12:28:28,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868619259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:28,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:28,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:28,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166029799] [2022-11-16 12:28:28,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:28,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:28,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:28,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:28,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:28,940 INFO L87 Difference]: Start difference. First operand 848 states and 3321 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:30,167 INFO L93 Difference]: Finished difference Result 1046 states and 3886 transitions. [2022-11-16 12:28:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:30,171 INFO L225 Difference]: With dead ends: 1046 [2022-11-16 12:28:30,171 INFO L226 Difference]: Without dead ends: 1046 [2022-11-16 12:28:30,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:28:30,171 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:30,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:28:30,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-16 12:28:30,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 848. [2022-11-16 12:28:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 3.9208972845336483) internal successors, (3321), 847 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 3321 transitions. [2022-11-16 12:28:30,195 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 3321 transitions. Word has length 24 [2022-11-16 12:28:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:30,195 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 3321 transitions. [2022-11-16 12:28:30,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 3321 transitions. [2022-11-16 12:28:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:30,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:30,197 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:30,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (207)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:30,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 207 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:30,398 INFO L420 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:30,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:30,398 INFO L85 PathProgramCache]: Analyzing trace with hash -621262603, now seen corresponding path program 61 times [2022-11-16 12:28:30,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:30,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390719891] [2022-11-16 12:28:30,399 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:28:30,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:30,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:30,400 INFO L229 MonitoredProcess]: Starting monitored process 208 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:30,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (208)] Waiting until timeout for monitored process [2022-11-16 12:28:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:31,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:31,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:31,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:31,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:31,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390719891] [2022-11-16 12:28:31,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390719891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:31,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:31,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:31,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67457370] [2022-11-16 12:28:31,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:31,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:31,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:31,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:31,541 INFO L87 Difference]: Start difference. First operand 848 states and 3321 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:32,685 INFO L93 Difference]: Finished difference Result 1028 states and 3828 transitions. [2022-11-16 12:28:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:32,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:32,688 INFO L225 Difference]: With dead ends: 1028 [2022-11-16 12:28:32,689 INFO L226 Difference]: Without dead ends: 1022 [2022-11-16 12:28:32,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:28:32,689 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:32,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:28:32,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-16 12:28:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 842. [2022-11-16 12:28:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 3.915576694411415) internal successors, (3293), 841 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 3293 transitions. [2022-11-16 12:28:32,710 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 3293 transitions. Word has length 24 [2022-11-16 12:28:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:32,711 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 3293 transitions. [2022-11-16 12:28:32,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 3293 transitions. [2022-11-16 12:28:32,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:32,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:32,713 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:32,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (208)] Ended with exit code 0 [2022-11-16 12:28:32,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 208 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:32,913 INFO L420 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:32,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:32,913 INFO L85 PathProgramCache]: Analyzing trace with hash -20228359, now seen corresponding path program 62 times [2022-11-16 12:28:32,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:32,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008227852] [2022-11-16 12:28:32,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:32,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:32,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:32,915 INFO L229 MonitoredProcess]: Starting monitored process 209 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:32,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (209)] Waiting until timeout for monitored process [2022-11-16 12:28:33,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:33,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:33,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:33,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:33,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:34,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:34,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008227852] [2022-11-16 12:28:34,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008227852] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:34,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:34,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:28:34,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250482046] [2022-11-16 12:28:34,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:34,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:34,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:34,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:34,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:34,237 INFO L87 Difference]: Start difference. First operand 842 states and 3293 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:35,596 INFO L93 Difference]: Finished difference Result 1248 states and 4694 transitions. [2022-11-16 12:28:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:35,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:35,601 INFO L225 Difference]: With dead ends: 1248 [2022-11-16 12:28:35,601 INFO L226 Difference]: Without dead ends: 1248 [2022-11-16 12:28:35,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:28:35,601 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:35,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:28:35,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2022-11-16 12:28:35,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 842. [2022-11-16 12:28:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 3.915576694411415) internal successors, (3293), 841 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:35,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 3293 transitions. [2022-11-16 12:28:35,626 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 3293 transitions. Word has length 24 [2022-11-16 12:28:35,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:35,626 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 3293 transitions. [2022-11-16 12:28:35,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:35,626 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 3293 transitions. [2022-11-16 12:28:35,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:35,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:35,628 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:35,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (209)] Ended with exit code 0 [2022-11-16 12:28:35,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 209 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:35,829 INFO L420 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:35,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1120107359, now seen corresponding path program 63 times [2022-11-16 12:28:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:35,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423989701] [2022-11-16 12:28:35,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:28:35,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:35,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:35,830 INFO L229 MonitoredProcess]: Starting monitored process 210 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:35,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (210)] Waiting until timeout for monitored process [2022-11-16 12:28:36,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:28:36,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:36,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:36,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:36,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:37,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:37,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423989701] [2022-11-16 12:28:37,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423989701] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:37,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:37,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:37,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623485900] [2022-11-16 12:28:37,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:37,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:37,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:37,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:37,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:37,376 INFO L87 Difference]: Start difference. First operand 842 states and 3293 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:38,972 INFO L93 Difference]: Finished difference Result 1162 states and 4384 transitions. [2022-11-16 12:28:38,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:38,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:38,976 INFO L225 Difference]: With dead ends: 1162 [2022-11-16 12:28:38,976 INFO L226 Difference]: Without dead ends: 1162 [2022-11-16 12:28:38,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:28:38,976 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:38,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:28:38,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-11-16 12:28:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 842. [2022-11-16 12:28:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 3.915576694411415) internal successors, (3293), 841 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 3293 transitions. [2022-11-16 12:28:39,004 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 3293 transitions. Word has length 24 [2022-11-16 12:28:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:39,005 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 3293 transitions. [2022-11-16 12:28:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 3293 transitions. [2022-11-16 12:28:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:39,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:39,006 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:39,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (210)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:39,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 210 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:39,207 INFO L420 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:39,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1367405474, now seen corresponding path program 58 times [2022-11-16 12:28:39,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:39,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105914743] [2022-11-16 12:28:39,208 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:28:39,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:39,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:39,209 INFO L229 MonitoredProcess]: Starting monitored process 211 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:39,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (211)] Waiting until timeout for monitored process [2022-11-16 12:28:39,865 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:28:39,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:39,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:39,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:40,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:40,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:40,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105914743] [2022-11-16 12:28:40,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105914743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:40,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:40,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630775414] [2022-11-16 12:28:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:40,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:40,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:40,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:40,279 INFO L87 Difference]: Start difference. First operand 842 states and 3293 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:41,337 INFO L93 Difference]: Finished difference Result 1030 states and 3837 transitions. [2022-11-16 12:28:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:41,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:41,340 INFO L225 Difference]: With dead ends: 1030 [2022-11-16 12:28:41,340 INFO L226 Difference]: Without dead ends: 1030 [2022-11-16 12:28:41,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:28:41,341 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:41,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:28:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-16 12:28:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 842. [2022-11-16 12:28:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 3.915576694411415) internal successors, (3293), 841 states have internal predecessors, (3293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 3293 transitions. [2022-11-16 12:28:41,359 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 3293 transitions. Word has length 24 [2022-11-16 12:28:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:41,359 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 3293 transitions. [2022-11-16 12:28:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 3293 transitions. [2022-11-16 12:28:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:41,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:41,361 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:41,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (211)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:41,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 211 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:41,561 INFO L420 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1868560967, now seen corresponding path program 64 times [2022-11-16 12:28:41,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:41,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024668068] [2022-11-16 12:28:41,562 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:28:41,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:41,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:41,564 INFO L229 MonitoredProcess]: Starting monitored process 212 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:41,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (212)] Waiting until timeout for monitored process [2022-11-16 12:28:42,241 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:28:42,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:42,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:42,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:42,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:42,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024668068] [2022-11-16 12:28:42,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024668068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:42,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:42,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:42,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502076420] [2022-11-16 12:28:42,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:42,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:42,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:42,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:42,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:42,578 INFO L87 Difference]: Start difference. First operand 842 states and 3293 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:43,711 INFO L93 Difference]: Finished difference Result 1012 states and 3779 transitions. [2022-11-16 12:28:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:43,715 INFO L225 Difference]: With dead ends: 1012 [2022-11-16 12:28:43,715 INFO L226 Difference]: Without dead ends: 1006 [2022-11-16 12:28:43,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:28:43,715 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:43,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:28:43,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2022-11-16 12:28:43,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 832. [2022-11-16 12:28:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 831 states have (on average 3.918170878459687) internal successors, (3256), 831 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:43,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 3256 transitions. [2022-11-16 12:28:43,733 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 3256 transitions. Word has length 24 [2022-11-16 12:28:43,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:43,733 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 3256 transitions. [2022-11-16 12:28:43,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 3256 transitions. [2022-11-16 12:28:43,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:43,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:43,735 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:43,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (212)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:43,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 212 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:43,936 INFO L420 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1322162466, now seen corresponding path program 59 times [2022-11-16 12:28:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:43,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501346529] [2022-11-16 12:28:43,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:28:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:43,938 INFO L229 MonitoredProcess]: Starting monitored process 213 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:43,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (213)] Waiting until timeout for monitored process [2022-11-16 12:28:44,637 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:28:44,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:44,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:44,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:44,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:45,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:45,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501346529] [2022-11-16 12:28:45,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501346529] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:45,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:45,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:28:45,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737475149] [2022-11-16 12:28:45,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:45,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:45,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:45,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:45,674 INFO L87 Difference]: Start difference. First operand 832 states and 3256 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:47,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:47,389 INFO L93 Difference]: Finished difference Result 956 states and 3575 transitions. [2022-11-16 12:28:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:47,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:47,392 INFO L225 Difference]: With dead ends: 956 [2022-11-16 12:28:47,393 INFO L226 Difference]: Without dead ends: 956 [2022-11-16 12:28:47,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:28:47,393 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:47,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:28:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-11-16 12:28:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 828. [2022-11-16 12:28:47,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 3.92503022974607) internal successors, (3246), 827 states have internal predecessors, (3246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 3246 transitions. [2022-11-16 12:28:47,411 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 3246 transitions. Word has length 24 [2022-11-16 12:28:47,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:47,411 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 3246 transitions. [2022-11-16 12:28:47,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:47,411 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 3246 transitions. [2022-11-16 12:28:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:47,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:47,413 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:47,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (213)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:47,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 213 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:47,614 INFO L420 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash 894904246, now seen corresponding path program 60 times [2022-11-16 12:28:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:47,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540957641] [2022-11-16 12:28:47,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:28:47,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:47,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:47,616 INFO L229 MonitoredProcess]: Starting monitored process 214 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:47,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (214)] Waiting until timeout for monitored process [2022-11-16 12:28:48,444 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:28:48,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:48,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:48,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:48,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:49,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:49,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540957641] [2022-11-16 12:28:49,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540957641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:49,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:28:49,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2022-11-16 12:28:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640177355] [2022-11-16 12:28:49,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:49,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:28:49,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:49,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:28:49,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:28:49,123 INFO L87 Difference]: Start difference. First operand 828 states and 3246 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:50,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:50,810 INFO L93 Difference]: Finished difference Result 992 states and 3693 transitions. [2022-11-16 12:28:50,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:50,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:50,824 INFO L225 Difference]: With dead ends: 992 [2022-11-16 12:28:50,824 INFO L226 Difference]: Without dead ends: 992 [2022-11-16 12:28:50,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:28:50,824 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:50,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:28:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-11-16 12:28:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 830. [2022-11-16 12:28:50,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 3.9215922798552474) internal successors, (3251), 829 states have internal predecessors, (3251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:50,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 3251 transitions. [2022-11-16 12:28:50,841 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 3251 transitions. Word has length 24 [2022-11-16 12:28:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:50,842 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 3251 transitions. [2022-11-16 12:28:50,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 3251 transitions. [2022-11-16 12:28:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:50,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:50,843 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:50,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (214)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:51,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 214 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:51,044 INFO L420 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:51,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1372366976, now seen corresponding path program 61 times [2022-11-16 12:28:51,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:51,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990806550] [2022-11-16 12:28:51,045 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:28:51,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:51,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:51,046 INFO L229 MonitoredProcess]: Starting monitored process 215 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:51,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (215)] Waiting until timeout for monitored process [2022-11-16 12:28:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:51,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:51,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:52,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:52,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:52,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990806550] [2022-11-16 12:28:52,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990806550] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:52,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:52,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:28:52,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899316104] [2022-11-16 12:28:52,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:52,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:52,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:52,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:52,644 INFO L87 Difference]: Start difference. First operand 830 states and 3251 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:54,253 INFO L93 Difference]: Finished difference Result 1022 states and 3743 transitions. [2022-11-16 12:28:54,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:54,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:54,257 INFO L225 Difference]: With dead ends: 1022 [2022-11-16 12:28:54,257 INFO L226 Difference]: Without dead ends: 1022 [2022-11-16 12:28:54,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:28:54,257 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:54,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 0 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:28:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-16 12:28:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 832. [2022-11-16 12:28:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 831 states have (on average 3.92057761732852) internal successors, (3258), 831 states have internal predecessors, (3258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 3258 transitions. [2022-11-16 12:28:54,282 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 3258 transitions. Word has length 24 [2022-11-16 12:28:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:54,282 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 3258 transitions. [2022-11-16 12:28:54,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:54,282 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 3258 transitions. [2022-11-16 12:28:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:54,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:54,284 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:54,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (215)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:54,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 215 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:54,485 INFO L420 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:54,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash -231393286, now seen corresponding path program 62 times [2022-11-16 12:28:54,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:54,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889719779] [2022-11-16 12:28:54,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:54,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:54,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:54,487 INFO L229 MonitoredProcess]: Starting monitored process 216 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:54,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (216)] Waiting until timeout for monitored process [2022-11-16 12:28:55,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:55,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:55,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:55,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:55,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:28:55,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889719779] [2022-11-16 12:28:55,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889719779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:55,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:55,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:28:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703330124] [2022-11-16 12:28:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:55,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:55,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:28:55,524 INFO L87 Difference]: Start difference. First operand 832 states and 3258 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:56,668 INFO L93 Difference]: Finished difference Result 920 states and 3482 transitions. [2022-11-16 12:28:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:28:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:28:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:56,671 INFO L225 Difference]: With dead ends: 920 [2022-11-16 12:28:56,672 INFO L226 Difference]: Without dead ends: 916 [2022-11-16 12:28:56,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:28:56,672 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:56,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 0 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:28:56,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-11-16 12:28:56,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 828. [2022-11-16 12:28:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 3.92503022974607) internal successors, (3246), 827 states have internal predecessors, (3246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 3246 transitions. [2022-11-16 12:28:56,697 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 3246 transitions. Word has length 24 [2022-11-16 12:28:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:56,698 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 3246 transitions. [2022-11-16 12:28:56,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:28:56,698 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 3246 transitions. [2022-11-16 12:28:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:28:56,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:56,699 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:56,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (216)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:56,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 216 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:56,900 INFO L420 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:28:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:56,901 INFO L85 PathProgramCache]: Analyzing trace with hash 316514077, now seen corresponding path program 65 times [2022-11-16 12:28:56,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:28:56,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431251873] [2022-11-16 12:28:56,901 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:28:56,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:28:56,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:28:56,902 INFO L229 MonitoredProcess]: Starting monitored process 217 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:28:56,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (217)] Waiting until timeout for monitored process [2022-11-16 12:28:57,600 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:28:57,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:57,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:28:57,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:58,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:28:58,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:28:58,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431251873] [2022-11-16 12:28:58,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431251873] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:58,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:28:58,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:28:58,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476295301] [2022-11-16 12:28:58,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:58,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:28:58,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:28:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:28:58,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:28:58,871 INFO L87 Difference]: Start difference. First operand 828 states and 3246 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:00,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:00,993 INFO L93 Difference]: Finished difference Result 1278 states and 4794 transitions. [2022-11-16 12:29:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:00,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:00,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:00,998 INFO L225 Difference]: With dead ends: 1278 [2022-11-16 12:29:00,998 INFO L226 Difference]: Without dead ends: 1278 [2022-11-16 12:29:00,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:00,998 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:00,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:29:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2022-11-16 12:29:01,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 836. [2022-11-16 12:29:01,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 835 states have (on average 3.94251497005988) internal successors, (3292), 835 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:01,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 3292 transitions. [2022-11-16 12:29:01,021 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 3292 transitions. Word has length 24 [2022-11-16 12:29:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:01,021 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 3292 transitions. [2022-11-16 12:29:01,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 3292 transitions. [2022-11-16 12:29:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:01,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:01,023 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:01,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (217)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:01,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 217 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:01,224 INFO L420 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1171820731, now seen corresponding path program 66 times [2022-11-16 12:29:01,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:01,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509627571] [2022-11-16 12:29:01,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:29:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:01,226 INFO L229 MonitoredProcess]: Starting monitored process 218 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:01,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (218)] Waiting until timeout for monitored process [2022-11-16 12:29:02,197 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:29:02,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:02,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:02,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:02,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:03,472 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:03,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509627571] [2022-11-16 12:29:03,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509627571] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:03,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:03,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872772346] [2022-11-16 12:29:03,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:03,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:03,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:03,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:03,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:03,473 INFO L87 Difference]: Start difference. First operand 836 states and 3292 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:05,512 INFO L93 Difference]: Finished difference Result 1240 states and 4696 transitions. [2022-11-16 12:29:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:05,515 INFO L225 Difference]: With dead ends: 1240 [2022-11-16 12:29:05,515 INFO L226 Difference]: Without dead ends: 1240 [2022-11-16 12:29:05,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:05,516 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:05,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:29:05,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2022-11-16 12:29:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 828. [2022-11-16 12:29:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 3.92503022974607) internal successors, (3246), 827 states have internal predecessors, (3246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 3246 transitions. [2022-11-16 12:29:05,531 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 3246 transitions. Word has length 24 [2022-11-16 12:29:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:05,531 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 3246 transitions. [2022-11-16 12:29:05,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 3246 transitions. [2022-11-16 12:29:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:05,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:05,533 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:05,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (218)] Ended with exit code 0 [2022-11-16 12:29:05,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 218 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:05,733 INFO L420 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:05,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1240089375, now seen corresponding path program 67 times [2022-11-16 12:29:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:05,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130944398] [2022-11-16 12:29:05,734 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:29:05,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:05,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:05,735 INFO L229 MonitoredProcess]: Starting monitored process 219 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:05,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (219)] Waiting until timeout for monitored process [2022-11-16 12:29:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:06,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:06,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:06,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:07,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:07,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130944398] [2022-11-16 12:29:07,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130944398] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:07,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:07,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2022-11-16 12:29:07,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229611012] [2022-11-16 12:29:07,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:07,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:07,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:07,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:07,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:29:07,073 INFO L87 Difference]: Start difference. First operand 828 states and 3246 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:08,698 INFO L93 Difference]: Finished difference Result 1250 states and 4692 transitions. [2022-11-16 12:29:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:08,702 INFO L225 Difference]: With dead ends: 1250 [2022-11-16 12:29:08,702 INFO L226 Difference]: Without dead ends: 1250 [2022-11-16 12:29:08,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:29:08,703 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:08,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:29:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-16 12:29:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 820. [2022-11-16 12:29:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 3.916971916971917) internal successors, (3208), 819 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 3208 transitions. [2022-11-16 12:29:08,726 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 3208 transitions. Word has length 24 [2022-11-16 12:29:08,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:08,726 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 3208 transitions. [2022-11-16 12:29:08,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 3208 transitions. [2022-11-16 12:29:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:08,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:08,738 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:08,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (219)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:08,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 219 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:08,938 INFO L420 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:08,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:08,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1480437282, now seen corresponding path program 63 times [2022-11-16 12:29:08,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:08,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371183224] [2022-11-16 12:29:08,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:29:08,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:08,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:08,940 INFO L229 MonitoredProcess]: Starting monitored process 220 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:08,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (220)] Waiting until timeout for monitored process [2022-11-16 12:29:09,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:29:09,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:09,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:09,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:09,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:09,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:10,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:10,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371183224] [2022-11-16 12:29:10,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371183224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:10,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:29:10,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:29:10,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245847717] [2022-11-16 12:29:10,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:10,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:29:10,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:10,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:29:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:29:10,622 INFO L87 Difference]: Start difference. First operand 820 states and 3208 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:11,947 INFO L93 Difference]: Finished difference Result 1140 states and 4223 transitions. [2022-11-16 12:29:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:11,947 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:11,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:11,950 INFO L225 Difference]: With dead ends: 1140 [2022-11-16 12:29:11,950 INFO L226 Difference]: Without dead ends: 1140 [2022-11-16 12:29:11,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:29:11,951 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 114 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:11,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 0 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:29:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-11-16 12:29:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 820. [2022-11-16 12:29:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 819 states have (on average 3.916971916971917) internal successors, (3208), 819 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 3208 transitions. [2022-11-16 12:29:11,968 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 3208 transitions. Word has length 24 [2022-11-16 12:29:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:11,968 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 3208 transitions. [2022-11-16 12:29:11,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 3208 transitions. [2022-11-16 12:29:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:11,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:11,970 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:11,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (220)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:12,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 220 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:12,170 INFO L420 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:12,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:12,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1543455906, now seen corresponding path program 64 times [2022-11-16 12:29:12,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:12,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201638832] [2022-11-16 12:29:12,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:29:12,171 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:12,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:12,172 INFO L229 MonitoredProcess]: Starting monitored process 221 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:12,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (221)] Waiting until timeout for monitored process [2022-11-16 12:29:12,828 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:29:12,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:12,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:12,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:13,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:14,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:14,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201638832] [2022-11-16 12:29:14,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201638832] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:14,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:29:14,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:29:14,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898666402] [2022-11-16 12:29:14,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:14,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:29:14,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:14,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:29:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:14,236 INFO L87 Difference]: Start difference. First operand 820 states and 3208 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:15,882 INFO L93 Difference]: Finished difference Result 1154 states and 4271 transitions. [2022-11-16 12:29:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:15,886 INFO L225 Difference]: With dead ends: 1154 [2022-11-16 12:29:15,886 INFO L226 Difference]: Without dead ends: 1154 [2022-11-16 12:29:15,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:29:15,886 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:15,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 0 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:29:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-16 12:29:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 828. [2022-11-16 12:29:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 827 states have (on average 3.934703748488513) internal successors, (3254), 827 states have internal predecessors, (3254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 3254 transitions. [2022-11-16 12:29:15,902 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 3254 transitions. Word has length 24 [2022-11-16 12:29:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:15,902 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 3254 transitions. [2022-11-16 12:29:15,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 3254 transitions. [2022-11-16 12:29:15,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:15,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:15,903 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:15,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (221)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:16,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 221 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:16,104 INFO L420 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:16,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1783098244, now seen corresponding path program 65 times [2022-11-16 12:29:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:16,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900065866] [2022-11-16 12:29:16,105 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:29:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:16,105 INFO L229 MonitoredProcess]: Starting monitored process 222 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:16,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (222)] Waiting until timeout for monitored process [2022-11-16 12:29:16,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:29:16,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:16,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:16,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:17,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:17,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:17,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900065866] [2022-11-16 12:29:17,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900065866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:17,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:29:17,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:29:17,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017931656] [2022-11-16 12:29:17,975 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:17,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:29:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:17,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:29:17,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:17,976 INFO L87 Difference]: Start difference. First operand 828 states and 3254 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:19,639 INFO L93 Difference]: Finished difference Result 1126 states and 4195 transitions. [2022-11-16 12:29:19,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:19,642 INFO L225 Difference]: With dead ends: 1126 [2022-11-16 12:29:19,643 INFO L226 Difference]: Without dead ends: 1126 [2022-11-16 12:29:19,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:29:19,643 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 97 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:19,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:29:19,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-11-16 12:29:19,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 812. [2022-11-16 12:29:19,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.908754623921085) internal successors, (3170), 811 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 3170 transitions. [2022-11-16 12:29:19,660 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 3170 transitions. Word has length 24 [2022-11-16 12:29:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:19,660 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 3170 transitions. [2022-11-16 12:29:19,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 3170 transitions. [2022-11-16 12:29:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:19,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:19,661 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:19,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (222)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:19,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 222 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:19,862 INFO L420 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1905384492, now seen corresponding path program 66 times [2022-11-16 12:29:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:19,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605312174] [2022-11-16 12:29:19,863 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:29:19,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:19,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:19,864 INFO L229 MonitoredProcess]: Starting monitored process 223 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:19,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (223)] Waiting until timeout for monitored process [2022-11-16 12:29:20,726 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:29:20,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:20,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:20,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:21,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:21,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:21,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:21,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605312174] [2022-11-16 12:29:21,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605312174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:21,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:29:21,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:29:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265534038] [2022-11-16 12:29:21,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:21,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:29:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:29:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:29:21,574 INFO L87 Difference]: Start difference. First operand 812 states and 3170 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:23,387 INFO L93 Difference]: Finished difference Result 1216 states and 4424 transitions. [2022-11-16 12:29:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:29:23,387 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:23,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:23,390 INFO L225 Difference]: With dead ends: 1216 [2022-11-16 12:29:23,391 INFO L226 Difference]: Without dead ends: 1216 [2022-11-16 12:29:23,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:23,391 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:23,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 0 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:29:23,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-11-16 12:29:23,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 812. [2022-11-16 12:29:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 811 states have (on average 3.908754623921085) internal successors, (3170), 811 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 3170 transitions. [2022-11-16 12:29:23,419 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 3170 transitions. Word has length 24 [2022-11-16 12:29:23,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:23,420 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 3170 transitions. [2022-11-16 12:29:23,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:23,420 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 3170 transitions. [2022-11-16 12:29:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:23,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:23,421 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:23,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (223)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 223 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:23,622 INFO L420 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:23,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1427921762, now seen corresponding path program 67 times [2022-11-16 12:29:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:23,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146437000] [2022-11-16 12:29:23,623 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:29:23,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:23,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:23,624 INFO L229 MonitoredProcess]: Starting monitored process 224 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:23,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (224)] Waiting until timeout for monitored process [2022-11-16 12:29:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:24,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:24,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:24,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:25,377 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:25,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:25,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146437000] [2022-11-16 12:29:25,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146437000] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:25,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:25,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:25,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360272856] [2022-11-16 12:29:25,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:25,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:25,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:25,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:25,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:25,379 INFO L87 Difference]: Start difference. First operand 812 states and 3170 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:27,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:27,490 INFO L93 Difference]: Finished difference Result 1170 states and 4278 transitions. [2022-11-16 12:29:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:27,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:27,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:27,494 INFO L225 Difference]: With dead ends: 1170 [2022-11-16 12:29:27,495 INFO L226 Difference]: Without dead ends: 1170 [2022-11-16 12:29:27,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:27,495 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:27,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:29:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-11-16 12:29:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 814. [2022-11-16 12:29:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 3.907749077490775) internal successors, (3177), 813 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 3177 transitions. [2022-11-16 12:29:27,524 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 3177 transitions. Word has length 24 [2022-11-16 12:29:27,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:27,524 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 3177 transitions. [2022-11-16 12:29:27,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:27,525 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 3177 transitions. [2022-11-16 12:29:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:27,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:27,526 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:27,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (224)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:27,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 224 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:27,727 INFO L420 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:27,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1263285272, now seen corresponding path program 68 times [2022-11-16 12:29:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:27,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360816961] [2022-11-16 12:29:27,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:29:27,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:27,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:27,729 INFO L229 MonitoredProcess]: Starting monitored process 225 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:27,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (225)] Waiting until timeout for monitored process [2022-11-16 12:29:28,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:29:28,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:28,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:28,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:28,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:29:28,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:28,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360816961] [2022-11-16 12:29:28,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360816961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:28,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:28,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:29:28,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274785589] [2022-11-16 12:29:28,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:28,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:28,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:28,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:29:28,847 INFO L87 Difference]: Start difference. First operand 814 states and 3177 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:29,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:29,974 INFO L93 Difference]: Finished difference Result 938 states and 3530 transitions. [2022-11-16 12:29:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:29,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:29,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:29,977 INFO L225 Difference]: With dead ends: 938 [2022-11-16 12:29:29,978 INFO L226 Difference]: Without dead ends: 934 [2022-11-16 12:29:29,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:29:29,978 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:29,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:29:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-11-16 12:29:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 810. [2022-11-16 12:29:29,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 3.9122373300370827) internal successors, (3165), 809 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 3165 transitions. [2022-11-16 12:29:29,995 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 3165 transitions. Word has length 24 [2022-11-16 12:29:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:29,995 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 3165 transitions. [2022-11-16 12:29:29,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 3165 transitions. [2022-11-16 12:29:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:29,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:29,997 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:30,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (225)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:30,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 225 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:30,198 INFO L420 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:30,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash 569500341, now seen corresponding path program 68 times [2022-11-16 12:29:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612674049] [2022-11-16 12:29:30,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:29:30,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:30,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:30,200 INFO L229 MonitoredProcess]: Starting monitored process 226 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:30,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (226)] Waiting until timeout for monitored process [2022-11-16 12:29:30,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:29:30,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:30,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:30,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:31,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:32,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:32,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:32,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612674049] [2022-11-16 12:29:32,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612674049] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:32,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:32,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549358084] [2022-11-16 12:29:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:32,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:32,596 INFO L87 Difference]: Start difference. First operand 810 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:34,875 INFO L93 Difference]: Finished difference Result 1188 states and 4384 transitions. [2022-11-16 12:29:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:34,879 INFO L225 Difference]: With dead ends: 1188 [2022-11-16 12:29:34,879 INFO L226 Difference]: Without dead ends: 1188 [2022-11-16 12:29:34,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:34,880 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:34,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:29:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-11-16 12:29:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 810. [2022-11-16 12:29:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 3.9122373300370827) internal successors, (3165), 809 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 3165 transitions. [2022-11-16 12:29:34,898 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 3165 transitions. Word has length 24 [2022-11-16 12:29:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:34,899 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 3165 transitions. [2022-11-16 12:29:34,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:34,899 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 3165 transitions. [2022-11-16 12:29:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:34,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:34,901 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:34,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (226)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:35,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 226 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:35,101 INFO L420 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:35,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:35,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1424806995, now seen corresponding path program 69 times [2022-11-16 12:29:35,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:35,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577650431] [2022-11-16 12:29:35,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:29:35,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:35,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:35,103 INFO L229 MonitoredProcess]: Starting monitored process 227 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:35,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (227)] Waiting until timeout for monitored process [2022-11-16 12:29:35,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:29:35,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:35,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:35,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:36,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:37,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:37,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577650431] [2022-11-16 12:29:37,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577650431] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:37,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:37,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:37,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792932224] [2022-11-16 12:29:37,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:37,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:37,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:37,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:37,491 INFO L87 Difference]: Start difference. First operand 810 states and 3165 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:39,579 INFO L93 Difference]: Finished difference Result 1204 states and 4435 transitions. [2022-11-16 12:29:39,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:39,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:39,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:39,583 INFO L225 Difference]: With dead ends: 1204 [2022-11-16 12:29:39,583 INFO L226 Difference]: Without dead ends: 1204 [2022-11-16 12:29:39,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:39,584 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:39,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:29:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-11-16 12:29:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 802. [2022-11-16 12:29:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 3.8938826466916354) internal successors, (3119), 801 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 3119 transitions. [2022-11-16 12:29:39,606 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 3119 transitions. Word has length 24 [2022-11-16 12:29:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:39,606 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 3119 transitions. [2022-11-16 12:29:39,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 3119 transitions. [2022-11-16 12:29:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:39,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:39,617 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:39,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (227)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:39,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 227 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:39,817 INFO L420 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:39,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:39,818 INFO L85 PathProgramCache]: Analyzing trace with hash 372986836, now seen corresponding path program 69 times [2022-11-16 12:29:39,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:39,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197165715] [2022-11-16 12:29:39,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:29:39,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:39,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:39,820 INFO L229 MonitoredProcess]: Starting monitored process 228 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:39,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (228)] Waiting until timeout for monitored process [2022-11-16 12:29:40,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:29:40,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:40,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:40,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:41,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:42,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:42,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197165715] [2022-11-16 12:29:42,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197165715] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:42,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:42,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:42,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228712338] [2022-11-16 12:29:42,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:42,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:42,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:42,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:42,194 INFO L87 Difference]: Start difference. First operand 802 states and 3119 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:44,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:44,914 INFO L93 Difference]: Finished difference Result 1184 states and 4347 transitions. [2022-11-16 12:29:44,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:44,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:44,918 INFO L225 Difference]: With dead ends: 1184 [2022-11-16 12:29:44,918 INFO L226 Difference]: Without dead ends: 1184 [2022-11-16 12:29:44,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:44,919 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:44,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 12:29:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2022-11-16 12:29:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 802. [2022-11-16 12:29:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 3.8938826466916354) internal successors, (3119), 801 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:44,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 3119 transitions. [2022-11-16 12:29:44,939 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 3119 transitions. Word has length 24 [2022-11-16 12:29:44,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:44,940 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 3119 transitions. [2022-11-16 12:29:44,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:44,940 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 3119 transitions. [2022-11-16 12:29:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:44,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:44,941 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:44,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (228)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:45,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 228 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:45,142 INFO L420 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:45,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash 133344498, now seen corresponding path program 70 times [2022-11-16 12:29:45,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:45,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597647173] [2022-11-16 12:29:45,143 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:29:45,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:45,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:45,144 INFO L229 MonitoredProcess]: Starting monitored process 229 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:45,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (229)] Waiting until timeout for monitored process [2022-11-16 12:29:45,853 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:29:45,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:45,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:45,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:46,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:47,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:47,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597647173] [2022-11-16 12:29:47,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597647173] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:47,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:47,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:47,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260521756] [2022-11-16 12:29:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:47,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:47,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:47,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:47,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:47,577 INFO L87 Difference]: Start difference. First operand 802 states and 3119 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:50,380 INFO L93 Difference]: Finished difference Result 1202 states and 4399 transitions. [2022-11-16 12:29:50,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:50,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:50,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:50,385 INFO L225 Difference]: With dead ends: 1202 [2022-11-16 12:29:50,385 INFO L226 Difference]: Without dead ends: 1202 [2022-11-16 12:29:50,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:29:50,386 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:50,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:29:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-11-16 12:29:50,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 794. [2022-11-16 12:29:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 3.8751576292559897) internal successors, (3073), 793 states have internal predecessors, (3073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 3073 transitions. [2022-11-16 12:29:50,406 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 3073 transitions. Word has length 24 [2022-11-16 12:29:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:50,406 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 3073 transitions. [2022-11-16 12:29:50,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:50,406 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 3073 transitions. [2022-11-16 12:29:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:50,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:50,408 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:50,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (229)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:50,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 229 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:50,609 INFO L420 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 913468190, now seen corresponding path program 71 times [2022-11-16 12:29:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:50,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035610457] [2022-11-16 12:29:50,609 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:29:50,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:50,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:50,611 INFO L229 MonitoredProcess]: Starting monitored process 230 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:50,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (230)] Waiting until timeout for monitored process [2022-11-16 12:29:51,352 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:29:51,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:51,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:51,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:52,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:52,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035610457] [2022-11-16 12:29:52,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035610457] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:52,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:29:52,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:29:52,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538439721] [2022-11-16 12:29:52,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:52,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:29:52,850 INFO L87 Difference]: Start difference. First operand 794 states and 3073 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:55,411 INFO L93 Difference]: Finished difference Result 1148 states and 4201 transitions. [2022-11-16 12:29:55,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:55,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:55,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:55,416 INFO L225 Difference]: With dead ends: 1148 [2022-11-16 12:29:55,416 INFO L226 Difference]: Without dead ends: 1148 [2022-11-16 12:29:55,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:29:55,416 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:55,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:29:55,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-11-16 12:29:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 794. [2022-11-16 12:29:55,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 3.8751576292559897) internal successors, (3073), 793 states have internal predecessors, (3073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 3073 transitions. [2022-11-16 12:29:55,435 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 3073 transitions. Word has length 24 [2022-11-16 12:29:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:55,436 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 3073 transitions. [2022-11-16 12:29:55,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 3073 transitions. [2022-11-16 12:29:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:55,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:55,437 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:55,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (230)] Ended with exit code 0 [2022-11-16 12:29:55,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 230 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:55,638 INFO L420 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash -690292072, now seen corresponding path program 72 times [2022-11-16 12:29:55,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:55,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152925318] [2022-11-16 12:29:55,639 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:29:55,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:55,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:55,640 INFO L229 MonitoredProcess]: Starting monitored process 231 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:55,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (231)] Waiting until timeout for monitored process [2022-11-16 12:29:56,587 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:29:56,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:56,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:56,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:57,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:29:57,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:29:57,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152925318] [2022-11-16 12:29:57,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152925318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:57,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:57,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:29:57,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301026048] [2022-11-16 12:29:57,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:57,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:29:57,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:29:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:29:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:29:57,064 INFO L87 Difference]: Start difference. First operand 794 states and 3073 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:58,291 INFO L93 Difference]: Finished difference Result 914 states and 3407 transitions. [2022-11-16 12:29:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:29:58,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:29:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:58,295 INFO L225 Difference]: With dead ends: 914 [2022-11-16 12:29:58,295 INFO L226 Difference]: Without dead ends: 910 [2022-11-16 12:29:58,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:29:58,295 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:58,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:29:58,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-11-16 12:29:58,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 792. [2022-11-16 12:29:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 3.8761061946902653) internal successors, (3066), 791 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 3066 transitions. [2022-11-16 12:29:58,312 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 3066 transitions. Word has length 24 [2022-11-16 12:29:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:58,312 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 3066 transitions. [2022-11-16 12:29:58,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:29:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 3066 transitions. [2022-11-16 12:29:58,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:29:58,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:58,314 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:58,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (231)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:58,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 231 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:58,514 INFO L420 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:29:58,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:58,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1157725027, now seen corresponding path program 70 times [2022-11-16 12:29:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:29:58,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704667506] [2022-11-16 12:29:58,515 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:29:58,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:29:58,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:29:58,516 INFO L229 MonitoredProcess]: Starting monitored process 232 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:29:58,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (232)] Waiting until timeout for monitored process [2022-11-16 12:29:59,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:29:59,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:59,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:29:59,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:29:59,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:00,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704667506] [2022-11-16 12:30:00,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704667506] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:00,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:30:00,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:30:00,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437244942] [2022-11-16 12:30:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:00,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:00,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:00,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:30:00,586 INFO L87 Difference]: Start difference. First operand 792 states and 3066 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:02,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:02,777 INFO L93 Difference]: Finished difference Result 1154 states and 4214 transitions. [2022-11-16 12:30:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:02,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:02,781 INFO L225 Difference]: With dead ends: 1154 [2022-11-16 12:30:02,781 INFO L226 Difference]: Without dead ends: 1154 [2022-11-16 12:30:02,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:30:02,782 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:02,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 0 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:30:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-11-16 12:30:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 794. [2022-11-16 12:30:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 3.8751576292559897) internal successors, (3073), 793 states have internal predecessors, (3073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:02,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 3073 transitions. [2022-11-16 12:30:02,810 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 3073 transitions. Word has length 24 [2022-11-16 12:30:02,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:02,811 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 3073 transitions. [2022-11-16 12:30:02,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 3073 transitions. [2022-11-16 12:30:02,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:02,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:02,814 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:02,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (232)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:03,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 232 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:03,031 INFO L420 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash -306169483, now seen corresponding path program 71 times [2022-11-16 12:30:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:03,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080200042] [2022-11-16 12:30:03,032 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:30:03,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:03,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:03,033 INFO L229 MonitoredProcess]: Starting monitored process 233 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:03,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (233)] Waiting until timeout for monitored process [2022-11-16 12:30:03,790 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-11-16 12:30:03,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:03,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:03,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:04,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:04,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:04,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080200042] [2022-11-16 12:30:04,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080200042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:04,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:04,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:30:04,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24936497] [2022-11-16 12:30:04,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:04,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:04,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:30:04,245 INFO L87 Difference]: Start difference. First operand 794 states and 3073 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:05,381 INFO L93 Difference]: Finished difference Result 922 states and 3420 transitions. [2022-11-16 12:30:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:05,384 INFO L225 Difference]: With dead ends: 922 [2022-11-16 12:30:05,384 INFO L226 Difference]: Without dead ends: 916 [2022-11-16 12:30:05,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:30:05,385 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:05,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 0 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:30:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-11-16 12:30:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 792. [2022-11-16 12:30:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 3.8761061946902653) internal successors, (3066), 791 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 3066 transitions. [2022-11-16 12:30:05,411 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 3066 transitions. Word has length 24 [2022-11-16 12:30:05,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:05,411 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 3066 transitions. [2022-11-16 12:30:05,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:05,411 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 3066 transitions. [2022-11-16 12:30:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:05,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:05,413 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:05,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (233)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:05,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 233 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:05,614 INFO L420 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2053225083, now seen corresponding path program 72 times [2022-11-16 12:30:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:05,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202915346] [2022-11-16 12:30:05,614 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-16 12:30:05,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:05,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:05,616 INFO L229 MonitoredProcess]: Starting monitored process 234 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:05,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (234)] Waiting until timeout for monitored process [2022-11-16 12:30:06,581 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-16 12:30:06,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:06,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:06,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:07,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:07,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202915346] [2022-11-16 12:30:07,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202915346] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:07,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:30:07,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:30:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604697386] [2022-11-16 12:30:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:07,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:30:07,936 INFO L87 Difference]: Start difference. First operand 792 states and 3066 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:09,879 INFO L93 Difference]: Finished difference Result 1112 states and 4107 transitions. [2022-11-16 12:30:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:09,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:09,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:09,883 INFO L225 Difference]: With dead ends: 1112 [2022-11-16 12:30:09,884 INFO L226 Difference]: Without dead ends: 1112 [2022-11-16 12:30:09,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:30:09,884 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:09,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:30:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-16 12:30:09,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 796. [2022-11-16 12:30:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 3.880503144654088) internal successors, (3085), 795 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 3085 transitions. [2022-11-16 12:30:09,902 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 3085 transitions. Word has length 24 [2022-11-16 12:30:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:09,902 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 3085 transitions. [2022-11-16 12:30:09,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:09,902 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 3085 transitions. [2022-11-16 12:30:09,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:09,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:09,904 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:09,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (234)] Ended with exit code 0 [2022-11-16 12:30:10,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 234 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:10,104 INFO L420 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:10,104 INFO L85 PathProgramCache]: Analyzing trace with hash 245770620, now seen corresponding path program 73 times [2022-11-16 12:30:10,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:10,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937534210] [2022-11-16 12:30:10,105 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:30:10,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:10,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:10,106 INFO L229 MonitoredProcess]: Starting monitored process 235 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:10,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (235)] Waiting until timeout for monitored process [2022-11-16 12:30:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:10,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:10,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:11,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:11,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:11,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937534210] [2022-11-16 12:30:11,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937534210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:11,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:11,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:30:11,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508846987] [2022-11-16 12:30:11,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:11,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:11,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:11,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:11,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:30:11,355 INFO L87 Difference]: Start difference. First operand 796 states and 3085 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:12,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:12,546 INFO L93 Difference]: Finished difference Result 948 states and 3490 transitions. [2022-11-16 12:30:12,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:12,547 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:12,549 INFO L225 Difference]: With dead ends: 948 [2022-11-16 12:30:12,549 INFO L226 Difference]: Without dead ends: 948 [2022-11-16 12:30:12,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:30:12,550 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:12,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:30:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-11-16 12:30:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 796. [2022-11-16 12:30:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 3.880503144654088) internal successors, (3085), 795 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 3085 transitions. [2022-11-16 12:30:12,566 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 3085 transitions. Word has length 24 [2022-11-16 12:30:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:12,566 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 3085 transitions. [2022-11-16 12:30:12,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 3085 transitions. [2022-11-16 12:30:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:12,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:12,568 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:12,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (235)] Ended with exit code 0 [2022-11-16 12:30:12,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 235 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:12,769 INFO L420 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -152436494, now seen corresponding path program 74 times [2022-11-16 12:30:12,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365506834] [2022-11-16 12:30:12,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:12,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:12,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:12,771 INFO L229 MonitoredProcess]: Starting monitored process 236 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:12,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (236)] Waiting until timeout for monitored process [2022-11-16 12:30:13,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:30:13,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:13,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:13,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:14,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:14,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:14,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:14,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365506834] [2022-11-16 12:30:14,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365506834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:14,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:14,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:30:14,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781276126] [2022-11-16 12:30:14,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:14,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:14,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:14,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:30:14,058 INFO L87 Difference]: Start difference. First operand 796 states and 3085 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:15,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:15,139 INFO L93 Difference]: Finished difference Result 910 states and 3398 transitions. [2022-11-16 12:30:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:15,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:15,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:15,142 INFO L225 Difference]: With dead ends: 910 [2022-11-16 12:30:15,142 INFO L226 Difference]: Without dead ends: 906 [2022-11-16 12:30:15,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:30:15,143 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:15,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:30:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-11-16 12:30:15,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 796. [2022-11-16 12:30:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 3.8754716981132074) internal successors, (3081), 795 states have internal predecessors, (3081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 3081 transitions. [2022-11-16 12:30:15,169 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 3081 transitions. Word has length 24 [2022-11-16 12:30:15,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:15,169 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 3081 transitions. [2022-11-16 12:30:15,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 3081 transitions. [2022-11-16 12:30:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:15,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:15,171 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:15,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (236)] Ended with exit code 0 [2022-11-16 12:30:15,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 236 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:15,371 INFO L420 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1304771475, now seen corresponding path program 73 times [2022-11-16 12:30:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672705677] [2022-11-16 12:30:15,372 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-16 12:30:15,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:15,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:15,374 INFO L229 MonitoredProcess]: Starting monitored process 237 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:15,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (237)] Waiting until timeout for monitored process [2022-11-16 12:30:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:16,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:16,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:16,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:16,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:16,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672705677] [2022-11-16 12:30:16,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672705677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:16,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:16,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:30:16,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234097983] [2022-11-16 12:30:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:16,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:16,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:16,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:30:16,572 INFO L87 Difference]: Start difference. First operand 796 states and 3081 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:17,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:17,831 INFO L93 Difference]: Finished difference Result 912 states and 3396 transitions. [2022-11-16 12:30:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:17,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:17,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:17,834 INFO L225 Difference]: With dead ends: 912 [2022-11-16 12:30:17,834 INFO L226 Difference]: Without dead ends: 906 [2022-11-16 12:30:17,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:30:17,834 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:17,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:30:17,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-11-16 12:30:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 790. [2022-11-16 12:30:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 3.8694550063371356) internal successors, (3053), 789 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:17,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 3053 transitions. [2022-11-16 12:30:17,851 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 3053 transitions. Word has length 24 [2022-11-16 12:30:17,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:17,851 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 3053 transitions. [2022-11-16 12:30:17,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 3053 transitions. [2022-11-16 12:30:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:17,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:17,853 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:17,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (237)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:18,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 237 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:18,053 INFO L420 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:18,054 INFO L85 PathProgramCache]: Analyzing trace with hash -198459783, now seen corresponding path program 74 times [2022-11-16 12:30:18,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:18,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897070412] [2022-11-16 12:30:18,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:18,054 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:18,055 INFO L229 MonitoredProcess]: Starting monitored process 238 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:18,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (238)] Waiting until timeout for monitored process [2022-11-16 12:30:18,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:30:18,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:18,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:18,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:19,167 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:19,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:19,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:19,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897070412] [2022-11-16 12:30:19,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897070412] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:19,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:19,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:30:19,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866779499] [2022-11-16 12:30:19,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:19,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:30:19,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:19,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:30:19,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:30:19,610 INFO L87 Difference]: Start difference. First operand 790 states and 3053 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:21,347 INFO L93 Difference]: Finished difference Result 1122 states and 4106 transitions. [2022-11-16 12:30:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:30:21,348 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:21,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:21,350 INFO L225 Difference]: With dead ends: 1122 [2022-11-16 12:30:21,351 INFO L226 Difference]: Without dead ends: 1122 [2022-11-16 12:30:21,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:30:21,351 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:21,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 0 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:30:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-11-16 12:30:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 790. [2022-11-16 12:30:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 3.8694550063371356) internal successors, (3053), 789 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 3053 transitions. [2022-11-16 12:30:21,370 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 3053 transitions. Word has length 24 [2022-11-16 12:30:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:21,370 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 3053 transitions. [2022-11-16 12:30:21,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:21,370 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 3053 transitions. [2022-11-16 12:30:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:21,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:21,372 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:21,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (238)] Ended with exit code 0 [2022-11-16 12:30:21,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 238 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:21,573 INFO L420 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:21,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:21,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1889943905, now seen corresponding path program 75 times [2022-11-16 12:30:21,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:21,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174966932] [2022-11-16 12:30:21,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:30:21,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:21,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:21,575 INFO L229 MonitoredProcess]: Starting monitored process 239 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:21,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (239)] Waiting until timeout for monitored process [2022-11-16 12:30:22,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:30:22,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:22,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:22,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:22,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:23,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:23,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:23,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174966932] [2022-11-16 12:30:23,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174966932] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:23,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:30:23,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-16 12:30:23,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257908324] [2022-11-16 12:30:23,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:23,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:23,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:23,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:30:23,330 INFO L87 Difference]: Start difference. First operand 790 states and 3053 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:24,871 INFO L93 Difference]: Finished difference Result 1022 states and 3823 transitions. [2022-11-16 12:30:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:24,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:24,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:24,874 INFO L225 Difference]: With dead ends: 1022 [2022-11-16 12:30:24,874 INFO L226 Difference]: Without dead ends: 1022 [2022-11-16 12:30:24,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:30:24,875 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:24,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:30:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-11-16 12:30:24,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 790. [2022-11-16 12:30:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 3.8694550063371356) internal successors, (3053), 789 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 3053 transitions. [2022-11-16 12:30:24,907 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 3053 transitions. Word has length 24 [2022-11-16 12:30:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:24,908 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 3053 transitions. [2022-11-16 12:30:24,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 3053 transitions. [2022-11-16 12:30:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-16 12:30:24,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:24,910 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:24,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (239)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:25,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 239 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:25,110 INFO L420 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:25,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:25,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1553467847, now seen corresponding path program 76 times [2022-11-16 12:30:25,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:25,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445750217] [2022-11-16 12:30:25,112 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:30:25,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:25,113 INFO L229 MonitoredProcess]: Starting monitored process 240 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:25,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (240)] Waiting until timeout for monitored process [2022-11-16 12:30:25,853 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:30:25,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:25,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:25,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:26,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:26,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:26,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445750217] [2022-11-16 12:30:26,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445750217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:26,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:26,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:30:26,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708458988] [2022-11-16 12:30:26,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:26,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:30:26,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:30:26,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:30:26,172 INFO L87 Difference]: Start difference. First operand 790 states and 3053 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:27,342 INFO L93 Difference]: Finished difference Result 896 states and 3347 transitions. [2022-11-16 12:30:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:27,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-16 12:30:27,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:27,345 INFO L225 Difference]: With dead ends: 896 [2022-11-16 12:30:27,345 INFO L226 Difference]: Without dead ends: 890 [2022-11-16 12:30:27,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:30:27,346 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:27,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:30:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-11-16 12:30:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 784. [2022-11-16 12:30:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 3.8697318007662833) internal successors, (3030), 783 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 3030 transitions. [2022-11-16 12:30:27,361 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 3030 transitions. Word has length 24 [2022-11-16 12:30:27,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:27,362 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 3030 transitions. [2022-11-16 12:30:27,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:27,362 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 3030 transitions. [2022-11-16 12:30:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 12:30:27,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:27,363 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:27,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (240)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:27,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 240 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:27,564 INFO L420 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:27,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash 252603003, now seen corresponding path program 1 times [2022-11-16 12:30:27,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:27,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403986796] [2022-11-16 12:30:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:27,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:27,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:27,566 INFO L229 MonitoredProcess]: Starting monitored process 241 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:27,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (241)] Waiting until timeout for monitored process [2022-11-16 12:30:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:28,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:30:28,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 12:30:28,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-16 12:30:29,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:29,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403986796] [2022-11-16 12:30:29,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403986796] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:29,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:29,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-16 12:30:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410487968] [2022-11-16 12:30:29,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:29,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:30:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:29,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:30:29,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:30:29,466 INFO L87 Difference]: Start difference. First operand 784 states and 3030 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:30,628 INFO L93 Difference]: Finished difference Result 1266 states and 4474 transitions. [2022-11-16 12:30:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:30:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-16 12:30:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:30,631 INFO L225 Difference]: With dead ends: 1266 [2022-11-16 12:30:30,631 INFO L226 Difference]: Without dead ends: 880 [2022-11-16 12:30:30,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:30:30,631 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:30,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 0 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:30:30,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-11-16 12:30:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 784. [2022-11-16 12:30:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 3.624521072796935) internal successors, (2838), 783 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 2838 transitions. [2022-11-16 12:30:30,646 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 2838 transitions. Word has length 25 [2022-11-16 12:30:30,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:30,646 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 2838 transitions. [2022-11-16 12:30:30,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 2838 transitions. [2022-11-16 12:30:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 12:30:30,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:30,648 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:30,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (241)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:30,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 241 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:30,851 INFO L420 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-16 12:30:30,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1421554354, now seen corresponding path program 1 times [2022-11-16 12:30:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:30,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029163351] [2022-11-16 12:30:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:30,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:30,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:30,853 INFO L229 MonitoredProcess]: Starting monitored process 242 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:30,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fcf7289-685a-4b6e-bbd6-c717e4a50c90/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (242)] Waiting until timeout for monitored process [2022-11-16 12:30:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:31,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-16 12:30:31,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:33,639 INFO L321 Elim1Store]: treesize reduction 148, result has 8.1 percent of original size [2022-11-16 12:30:33,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 631 treesize of output 215 [2022-11-16 12:30:39,521 WARN L233 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 72 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:30:50,797 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification. DAG size of input: 67 DAG size of output: 65 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:30:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 12:30:50,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:31:05,678 INFO L321 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2022-11-16 12:31:05,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 916 treesize of output 588