./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro --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 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- 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-8393723 [2022-11-18 19:50:46,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:50:46,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:50:46,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:50:46,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:50:46,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:50:46,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:50:46,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:50:46,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:50:46,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:50:46,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:50:46,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:50:46,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:50:46,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:50:46,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:50:46,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:50:46,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:50:46,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:50:46,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:50:46,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:50:46,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:50:46,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:50:46,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:50:46,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:50:46,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:50:46,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:50:46,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:50:46,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:50:46,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:50:46,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:50:46,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:50:46,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:50:46,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:50:46,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:50:46,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:50:46,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:50:46,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:50:46,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:50:46,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:50:46,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:50:46,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:50:46,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 19:50:46,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:50:46,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:50:46,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:50:46,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:50:46,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:50:46,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:50:46,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:50:46,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:50:46,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:50:46,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:50:46,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:50:46,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:50:46,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:50:46,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:50:46,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:50:46,249 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:50:46,249 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:50:46,250 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:50:46,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:50:46,250 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:50:46,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:50:46,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:50:46,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:50:46,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:50:46,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:50:46,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:46,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:50:46,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:50:46,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:50:46,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:50:46,253 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2022-11-18 19:50:46,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:50:46,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:50:46,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:50:46,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:50:46,605 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:50:46,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2022-11-18 19:50:46,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/2480fe681/58a39f72898a4544a0c64435a7996e29/FLAGd59e804eb [2022-11-18 19:50:47,272 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:50:47,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2022-11-18 19:50:47,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/2480fe681/58a39f72898a4544a0c64435a7996e29/FLAGd59e804eb [2022-11-18 19:50:47,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/2480fe681/58a39f72898a4544a0c64435a7996e29 [2022-11-18 19:50:47,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:50:47,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:50:47,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:47,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:50:47,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:50:47,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:47" (1/1) ... [2022-11-18 19:50:47,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274ebc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:47, skipping insertion in model container [2022-11-18 19:50:47,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:47" (1/1) ... [2022-11-18 19:50:47,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:50:47,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:50:47,863 WARN L234 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-11-18 19:50:47,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:47,887 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) [2022-11-18 19:50:47,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa2de01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:47, skipping insertion in model container [2022-11-18 19:50:47,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:47,888 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 19:50:47,890 INFO L158 Benchmark]: Toolchain (without parser) took 296.81ms. Allocated memory is still 94.4MB. Free memory was 56.0MB in the beginning and 71.0MB in the end (delta: -15.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-18 19:50:47,890 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:50:47,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.44ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 71.2MB in the end (delta: -15.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-18 19:50:47,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.44ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 71.2MB in the end (delta: -15.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 116]: 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro --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 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 --- 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-8393723 [2022-11-18 19:50:50,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:50:50,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:50:50,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:50:50,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:50:50,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:50:50,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:50:50,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:50:50,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:50:50,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:50:50,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:50:50,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:50:50,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:50:50,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:50:50,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:50:50,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:50:50,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:50:50,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:50:50,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:50:50,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:50:50,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:50:50,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:50:50,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:50:50,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:50:50,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:50:50,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:50:50,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:50:50,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:50:50,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:50:50,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:50:50,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:50:50,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:50:50,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:50:50,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:50:50,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:50:50,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:50:50,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:50:50,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:50:50,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:50:50,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:50:50,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:50:50,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 19:50:50,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:50:50,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:50:50,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:50:50,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:50:50,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:50:50,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:50:50,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:50:50,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:50:50,379 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:50:50,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:50:50,380 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:50:50,381 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:50:50,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:50:50,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:50:50,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:50:50,382 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 19:50:50,382 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 19:50:50,383 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 19:50:50,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:50:50,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:50:50,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:50:50,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:50:50,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:50:50,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:50:50,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:50:50,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:50:50,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:50:50,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:50,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:50:50,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:50:50,387 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:50:50,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:50:50,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:50:50,388 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4755329f7559a8be1422f8772c1ed30abe185c2742a237de140cc196ec4e9010 [2022-11-18 19:50:50,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:50:50,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:50:50,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:50:50,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:50:50,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:50:50,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2022-11-18 19:50:50,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/8526b1b56/4a1568d164b04b84be7bf96f1614e596/FLAG6338a6365 [2022-11-18 19:50:51,476 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:50:51,476 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c [2022-11-18 19:50:51,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/8526b1b56/4a1568d164b04b84be7bf96f1614e596/FLAG6338a6365 [2022-11-18 19:50:51,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/data/8526b1b56/4a1568d164b04b84be7bf96f1614e596 [2022-11-18 19:50:51,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:50:51,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:50:51,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:51,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:50:51,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:50:51,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:51" (1/1) ... [2022-11-18 19:50:51,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c0a873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:51, skipping insertion in model container [2022-11-18 19:50:51,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:51" (1/1) ... [2022-11-18 19:50:51,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:50:51,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:50:52,173 WARN L234 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-11-18 19:50:52,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:52,267 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 19:50:52,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:50:52,305 WARN L234 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-11-18 19:50:52,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:52,323 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:50:52,345 WARN L234 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_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/sv-benchmarks/c/weaver/unroll-cond-4.wvr.c[2808,2821] [2022-11-18 19:50:52,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:52,364 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:50:52,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52 WrapperNode [2022-11-18 19:50:52,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:52,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:52,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:50:52,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:50:52,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,415 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 181 [2022-11-18 19:50:52,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:52,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:50:52,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:50:52,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:50:52,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:50:52,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:50:52,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:50:52,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:50:52,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (1/1) ... [2022-11-18 19:50:52,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:52,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:52,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:50:52,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:50:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:50:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:50:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:50:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 19:50:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:50:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:50:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:50:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:50:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:50:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:50:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:50:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:50:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 19:50:52,585 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:50:52,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:50:52,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:50:53,420 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:50:53,430 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:50:53,430 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 19:50:53,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:53 BoogieIcfgContainer [2022-11-18 19:50:53,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:50:53,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:50:53,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:50:53,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:50:53,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:51" (1/3) ... [2022-11-18 19:50:53,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35490872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:53, skipping insertion in model container [2022-11-18 19:50:53,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:52" (2/3) ... [2022-11-18 19:50:53,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35490872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:53, skipping insertion in model container [2022-11-18 19:50:53,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:53" (3/3) ... [2022-11-18 19:50:53,443 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.c [2022-11-18 19:50:53,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:50:53,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-18 19:50:53,464 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:50:53,599 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:50:53,633 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 19:50:53,646 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 267 transitions, 550 flow [2022-11-18 19:50:53,648 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 267 transitions, 550 flow [2022-11-18 19:50:53,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 267 transitions, 550 flow [2022-11-18 19:50:53,768 INFO L130 PetriNetUnfolder]: 21/265 cut-off events. [2022-11-18 19:50:53,768 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:50:53,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 265 events. 21/265 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 555 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 161. Up to 2 conditions per place. [2022-11-18 19:50:53,785 INFO L119 LiptonReduction]: Number of co-enabled transitions 8508 [2022-11-18 19:51:55,945 INFO L134 LiptonReduction]: Checked pairs total: 7918 [2022-11-18 19:51:55,946 INFO L136 LiptonReduction]: Total number of compositions: 317 [2022-11-18 19:51:55,954 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 47 transitions, 110 flow [2022-11-18 19:51:56,017 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 438 states, 262 states have (on average 4.282442748091603) internal successors, (1122), 437 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:56,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:51:56,045 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;@67c6410f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:51:56,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-18 19:51:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 438 states, 262 states have (on average 4.282442748091603) internal successors, (1122), 437 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 19:51:56,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:56,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 19:51:56,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:51:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:56,068 INFO L85 PathProgramCache]: Analyzing trace with hash 35699, now seen corresponding path program 1 times [2022-11-18 19:51:56,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:56,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994009470] [2022-11-18 19:51:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:56,084 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 [2022-11-18 19:51:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:56,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:51:56,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:56,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:51:56,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:56,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:56,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:56,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994009470] [2022-11-18 19:51:56,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994009470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:56,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:56,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:51:56,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345152438] [2022-11-18 19:51:56,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:56,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:56,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:56,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:56,451 INFO L87 Difference]: Start difference. First operand has 438 states, 262 states have (on average 4.282442748091603) internal successors, (1122), 437 states have internal predecessors, (1122), 0 states have call successors, (0), 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) [2022-11-18 19:51:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:57,121 INFO L93 Difference]: Finished difference Result 368 states and 935 transitions. [2022-11-18 19:51:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:57,124 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 [2022-11-18 19:51:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:57,137 INFO L225 Difference]: With dead ends: 368 [2022-11-18 19:51:57,137 INFO L226 Difference]: Without dead ends: 368 [2022-11-18 19:51:57,138 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 [2022-11-18 19:51:57,142 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:57,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:51:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-18 19:51:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2022-11-18 19:51:57,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 224 states have (on average 4.174107142857143) internal successors, (935), 365 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 935 transitions. [2022-11-18 19:51:57,211 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 935 transitions. Word has length 2 [2022-11-18 19:51:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:57,212 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 935 transitions. [2022-11-18 19:51:57,212 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) [2022-11-18 19:51:57,212 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 935 transitions. [2022-11-18 19:51:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 19:51:57,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:57,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 19:51:57,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:57,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:57,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:51:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:57,424 INFO L85 PathProgramCache]: Analyzing trace with hash 35487, now seen corresponding path program 1 times [2022-11-18 19:51:57,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:57,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144960061] [2022-11-18 19:51:57,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:57,425 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 [2022-11-18 19:51:57,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:57,427 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:51:57,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:57,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:51:57,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:57,587 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-18 19:51:57,588 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 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-18 19:51:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:57,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:57,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:57,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144960061] [2022-11-18 19:51:57,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144960061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:57,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:57,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:51:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431363365] [2022-11-18 19:51:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:57,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:57,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:57,626 INFO L87 Difference]: Start difference. First operand 366 states and 935 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) [2022-11-18 19:51:58,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:58,038 INFO L93 Difference]: Finished difference Result 365 states and 933 transitions. [2022-11-18 19:51:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:58,039 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 [2022-11-18 19:51:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:58,043 INFO L225 Difference]: With dead ends: 365 [2022-11-18 19:51:58,043 INFO L226 Difference]: Without dead ends: 365 [2022-11-18 19:51:58,043 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 [2022-11-18 19:51:58,045 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:58,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:51:58,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-18 19:51:58,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-11-18 19:51:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 224 states have (on average 4.165178571428571) internal successors, (933), 364 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:58,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 933 transitions. [2022-11-18 19:51:58,094 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 933 transitions. Word has length 2 [2022-11-18 19:51:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:58,094 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 933 transitions. [2022-11-18 19:51:58,094 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) [2022-11-18 19:51:58,095 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 933 transitions. [2022-11-18 19:51:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 19:51:58,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:58,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 19:51:58,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:58,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:58,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:51:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:58,307 INFO L85 PathProgramCache]: Analyzing trace with hash 35488, now seen corresponding path program 1 times [2022-11-18 19:51:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:58,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728020321] [2022-11-18 19:51:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:58,308 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 [2022-11-18 19:51:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:58,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:51:58,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:58,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 19:51:58,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:58,478 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:51:58,478 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:51:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:51:58,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:58,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:58,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728020321] [2022-11-18 19:51:58,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728020321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:58,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:51:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678379259] [2022-11-18 19:51:58,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:58,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:58,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:58,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:58,528 INFO L87 Difference]: Start difference. First operand 365 states and 933 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) [2022-11-18 19:51:59,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:59,071 INFO L93 Difference]: Finished difference Result 365 states and 932 transitions. [2022-11-18 19:51:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:59,072 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 [2022-11-18 19:51:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:59,075 INFO L225 Difference]: With dead ends: 365 [2022-11-18 19:51:59,075 INFO L226 Difference]: Without dead ends: 365 [2022-11-18 19:51:59,075 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 [2022-11-18 19:51:59,077 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:59,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:51:59,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-18 19:51:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-11-18 19:51:59,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 224 states have (on average 4.160714285714286) internal successors, (932), 364 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 932 transitions. [2022-11-18 19:51:59,098 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 932 transitions. Word has length 2 [2022-11-18 19:51:59,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:59,099 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 932 transitions. [2022-11-18 19:51:59,099 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) [2022-11-18 19:51:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 932 transitions. [2022-11-18 19:51:59,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:51:59,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:59,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:51:59,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:59,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:51:59,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:51:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:59,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1108144, now seen corresponding path program 1 times [2022-11-18 19:51:59,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:51:59,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139265494] [2022-11-18 19:51:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:59,314 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 [2022-11-18 19:51:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:51:59,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:51:59,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:51:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:51:59,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:51:59,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:51:59,453 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2022-11-18 19:51:59,453 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 3 case distinctions, treesize of input 22 treesize of output 33 [2022-11-18 19:51:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:51:59,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:51:59,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:51:59,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139265494] [2022-11-18 19:51:59,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139265494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:51:59,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:51:59,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:51:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618267878] [2022-11-18 19:51:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:51:59,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:51:59,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:51:59,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:51:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:59,512 INFO L87 Difference]: Start difference. First operand 365 states and 932 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) [2022-11-18 19:51:59,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:59,878 INFO L93 Difference]: Finished difference Result 294 states and 721 transitions. [2022-11-18 19:51:59,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:51:59,879 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 3 [2022-11-18 19:51:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:59,881 INFO L225 Difference]: With dead ends: 294 [2022-11-18 19:51:59,881 INFO L226 Difference]: Without dead ends: 294 [2022-11-18 19:51:59,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:51:59,882 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:59,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:51:59,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-18 19:51:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2022-11-18 19:51:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 190 states have (on average 3.794736842105263) internal successors, (721), 293 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:51:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 721 transitions. [2022-11-18 19:51:59,896 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 721 transitions. Word has length 3 [2022-11-18 19:51:59,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:59,897 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 721 transitions. [2022-11-18 19:51:59,897 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) [2022-11-18 19:51:59,897 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 721 transitions. [2022-11-18 19:51:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:51:59,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:59,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:51:59,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:00,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:00,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:00,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1108145, now seen corresponding path program 1 times [2022-11-18 19:52:00,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:00,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517402416] [2022-11-18 19:52:00,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:00,111 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 [2022-11-18 19:52:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:00,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:00,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:00,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 19:52:00,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:00,300 INFO L321 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2022-11-18 19:52:00,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 26 [2022-11-18 19:52:00,312 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 10 treesize of output 8 [2022-11-18 19:52:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:00,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:00,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:00,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517402416] [2022-11-18 19:52:00,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517402416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:00,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:00,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:52:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023188856] [2022-11-18 19:52:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:00,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:52:00,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:00,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:52:00,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:52:00,425 INFO L87 Difference]: Start difference. First operand 294 states and 721 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) [2022-11-18 19:52:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:00,796 INFO L93 Difference]: Finished difference Result 293 states and 720 transitions. [2022-11-18 19:52:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:52:00,797 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 3 [2022-11-18 19:52:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:00,799 INFO L225 Difference]: With dead ends: 293 [2022-11-18 19:52:00,799 INFO L226 Difference]: Without dead ends: 293 [2022-11-18 19:52:00,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:52:00,800 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:00,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 33 Unchecked, 0.4s Time] [2022-11-18 19:52:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-11-18 19:52:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-11-18 19:52:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 190 states have (on average 3.789473684210526) internal successors, (720), 292 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 720 transitions. [2022-11-18 19:52:00,815 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 720 transitions. Word has length 3 [2022-11-18 19:52:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:00,815 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 720 transitions. [2022-11-18 19:52:00,815 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) [2022-11-18 19:52:00,816 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 720 transitions. [2022-11-18 19:52:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 19:52:00,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:00,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 19:52:00,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:01,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:01,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:01,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:01,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1107933, now seen corresponding path program 1 times [2022-11-18 19:52:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:01,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80328719] [2022-11-18 19:52:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:01,030 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 [2022-11-18 19:52:01,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:01,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:01,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:01,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:52:01,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:01,206 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:52:01,206 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:52:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:01,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:01,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:01,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:01,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80328719] [2022-11-18 19:52:01,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80328719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:01,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:01,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-18 19:52:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612299749] [2022-11-18 19:52:01,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:01,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:52:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:01,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:52:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:52:01,571 INFO L87 Difference]: Start difference. First operand 293 states and 720 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) [2022-11-18 19:52:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:02,815 INFO L93 Difference]: Finished difference Result 585 states and 1441 transitions. [2022-11-18 19:52:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:52:02,816 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 [2022-11-18 19:52:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:02,820 INFO L225 Difference]: With dead ends: 585 [2022-11-18 19:52:02,820 INFO L226 Difference]: Without dead ends: 585 [2022-11-18 19:52:02,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:52:02,821 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 100 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:02,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 6 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:52:02,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-11-18 19:52:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 296. [2022-11-18 19:52:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 193 states have (on average 3.761658031088083) internal successors, (726), 295 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 726 transitions. [2022-11-18 19:52:02,835 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 726 transitions. Word has length 3 [2022-11-18 19:52:02,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:02,836 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 726 transitions. [2022-11-18 19:52:02,836 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) [2022-11-18 19:52:02,836 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 726 transitions. [2022-11-18 19:52:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:52:02,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:02,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:52:02,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:03,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:03,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:03,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:03,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1064953050, now seen corresponding path program 1 times [2022-11-18 19:52:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:03,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308767027] [2022-11-18 19:52:03,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:03,050 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 [2022-11-18 19:52:03,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:03,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:03,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:03,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:52:03,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:03,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 19:52:03,212 INFO L321 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2022-11-18 19:52:03,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 23 [2022-11-18 19:52:03,224 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 26 treesize of output 24 [2022-11-18 19:52:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:03,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:03,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:03,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308767027] [2022-11-18 19:52:03,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308767027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:03,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:03,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:52:03,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643085955] [2022-11-18 19:52:03,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:03,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:52:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:52:03,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:52:03,273 INFO L87 Difference]: Start difference. First operand 296 states and 726 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) [2022-11-18 19:52:03,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:03,619 INFO L93 Difference]: Finished difference Result 277 states and 688 transitions. [2022-11-18 19:52:03,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:52:03,620 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 5 [2022-11-18 19:52:03,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:03,622 INFO L225 Difference]: With dead ends: 277 [2022-11-18 19:52:03,622 INFO L226 Difference]: Without dead ends: 277 [2022-11-18 19:52:03,622 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 [2022-11-18 19:52:03,623 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:03,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 2 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:03,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-18 19:52:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2022-11-18 19:52:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 189 states have (on average 3.64021164021164) internal successors, (688), 276 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 688 transitions. [2022-11-18 19:52:03,633 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 688 transitions. Word has length 5 [2022-11-18 19:52:03,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:03,633 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 688 transitions. [2022-11-18 19:52:03,633 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) [2022-11-18 19:52:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 688 transitions. [2022-11-18 19:52:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:52:03,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:03,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:52:03,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:03,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:03,845 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:03,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:03,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1064953051, now seen corresponding path program 1 times [2022-11-18 19:52:03,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:03,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57612752] [2022-11-18 19:52:03,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:03,847 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 [2022-11-18 19:52:03,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:03,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:03,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:03,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:03,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:04,002 INFO L321 Elim1Store]: treesize reduction 43, result has 33.8 percent of original size [2022-11-18 19:52:04,003 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 2 case distinctions, treesize of input 12 treesize of output 29 [2022-11-18 19:52:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:04,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:04,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:04,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57612752] [2022-11-18 19:52:04,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57612752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:04,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:04,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 19:52:04,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372803866] [2022-11-18 19:52:04,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:04,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:52:04,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:04,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:52:04,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:52:04,033 INFO L87 Difference]: Start difference. First operand 277 states and 688 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) [2022-11-18 19:52:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:04,334 INFO L93 Difference]: Finished difference Result 258 states and 650 transitions. [2022-11-18 19:52:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:52:04,335 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 5 [2022-11-18 19:52:04,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:04,337 INFO L225 Difference]: With dead ends: 258 [2022-11-18 19:52:04,337 INFO L226 Difference]: Without dead ends: 258 [2022-11-18 19:52:04,337 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 [2022-11-18 19:52:04,338 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:04,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-18 19:52:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-11-18 19:52:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 185 states have (on average 3.5135135135135136) internal successors, (650), 257 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 650 transitions. [2022-11-18 19:52:04,348 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 650 transitions. Word has length 5 [2022-11-18 19:52:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:04,348 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 650 transitions. [2022-11-18 19:52:04,349 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) [2022-11-18 19:52:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 650 transitions. [2022-11-18 19:52:04,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:52:04,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:04,349 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1] [2022-11-18 19:52:04,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:04,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:04,563 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:04,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1345556000, now seen corresponding path program 2 times [2022-11-18 19:52:04,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:04,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107599448] [2022-11-18 19:52:04,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:52:04,564 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 [2022-11-18 19:52:04,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:04,565 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:04,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:04,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:52:04,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:04,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:52:04,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:04,770 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:52:04,770 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:52:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:05,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:05,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:05,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107599448] [2022-11-18 19:52:05,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107599448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:05,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:05,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2022-11-18 19:52:05,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107901619] [2022-11-18 19:52:05,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:05,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:52:05,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:05,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:52:05,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:52:05,779 INFO L87 Difference]: Start difference. First operand 258 states and 650 transitions. Second operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:13,290 INFO L93 Difference]: Finished difference Result 2272 states and 5774 transitions. [2022-11-18 19:52:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:52:13,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 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 6 [2022-11-18 19:52:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:13,306 INFO L225 Difference]: With dead ends: 2272 [2022-11-18 19:52:13,307 INFO L226 Difference]: Without dead ends: 2272 [2022-11-18 19:52:13,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:52:13,308 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 870 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:13,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 48 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-18 19:52:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2022-11-18 19:52:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 264. [2022-11-18 19:52:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 191 states have (on average 3.4659685863874348) internal successors, (662), 263 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 662 transitions. [2022-11-18 19:52:13,337 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 662 transitions. Word has length 6 [2022-11-18 19:52:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:13,338 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 662 transitions. [2022-11-18 19:52:13,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 662 transitions. [2022-11-18 19:52:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:52:13,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:13,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:52:13,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:13,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:13,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1346203547, now seen corresponding path program 1 times [2022-11-18 19:52:13,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:13,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352955419] [2022-11-18 19:52:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:13,556 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 [2022-11-18 19:52:13,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:13,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:13,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:13,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:13,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:13,724 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-18 19:52:13,724 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 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-18 19:52:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:13,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:13,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:13,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352955419] [2022-11-18 19:52:13,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352955419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:13,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:13,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:52:13,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31638673] [2022-11-18 19:52:13,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:13,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:52:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:52:13,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:52:13,758 INFO L87 Difference]: Start difference. First operand 264 states and 662 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) [2022-11-18 19:52:14,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:14,109 INFO L93 Difference]: Finished difference Result 164 states and 402 transitions. [2022-11-18 19:52:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:52:14,110 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 6 [2022-11-18 19:52:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:14,111 INFO L225 Difference]: With dead ends: 164 [2022-11-18 19:52:14,112 INFO L226 Difference]: Without dead ends: 164 [2022-11-18 19:52:14,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:14,113 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:14,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-18 19:52:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-18 19:52:14,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 131 states have (on average 3.068702290076336) internal successors, (402), 163 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 402 transitions. [2022-11-18 19:52:14,119 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 402 transitions. Word has length 6 [2022-11-18 19:52:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:14,119 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 402 transitions. [2022-11-18 19:52:14,119 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) [2022-11-18 19:52:14,119 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 402 transitions. [2022-11-18 19:52:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 19:52:14,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:14,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 19:52:14,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:14,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:14,331 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1346203546, now seen corresponding path program 1 times [2022-11-18 19:52:14,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:14,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386203831] [2022-11-18 19:52:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:14,332 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 [2022-11-18 19:52:14,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:14,333 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:14,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:14,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:52:14,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:14,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:14,736 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 35 treesize of output 31 [2022-11-18 19:52:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:14,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:14,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386203831] [2022-11-18 19:52:14,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386203831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:14,841 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:14,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2022-11-18 19:52:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099157701] [2022-11-18 19:52:14,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:14,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:52:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:14,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:52:14,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:52:14,842 INFO L87 Difference]: Start difference. First operand 164 states and 402 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:16,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:16,253 INFO L93 Difference]: Finished difference Result 369 states and 907 transitions. [2022-11-18 19:52:16,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:52:16,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 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 6 [2022-11-18 19:52:16,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:16,256 INFO L225 Difference]: With dead ends: 369 [2022-11-18 19:52:16,256 INFO L226 Difference]: Without dead ends: 369 [2022-11-18 19:52:16,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:52:16,257 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 191 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:16,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 8 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 19:52:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-18 19:52:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 196. [2022-11-18 19:52:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 163 states have (on average 3.1779141104294477) internal successors, (518), 195 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 518 transitions. [2022-11-18 19:52:16,266 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 518 transitions. Word has length 6 [2022-11-18 19:52:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:16,266 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 518 transitions. [2022-11-18 19:52:16,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 518 transitions. [2022-11-18 19:52:16,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:52:16,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:16,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:16,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:16,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:16,479 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1217688423, now seen corresponding path program 1 times [2022-11-18 19:52:16,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:16,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143995116] [2022-11-18 19:52:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:16,479 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 [2022-11-18 19:52:16,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:16,481 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:16,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:16,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:52:16,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:16,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:16,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:16,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143995116] [2022-11-18 19:52:16,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143995116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:16,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:16,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:52:16,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847422819] [2022-11-18 19:52:16,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:16,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:52:16,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:16,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:52:16,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:52:16,625 INFO L87 Difference]: Start difference. First operand 196 states and 518 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-18 19:52:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:16,915 INFO L93 Difference]: Finished difference Result 146 states and 358 transitions. [2022-11-18 19:52:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:52:16,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 7 [2022-11-18 19:52:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:16,917 INFO L225 Difference]: With dead ends: 146 [2022-11-18 19:52:16,918 INFO L226 Difference]: Without dead ends: 146 [2022-11-18 19:52:16,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:52:16,918 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:16,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-18 19:52:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-18 19:52:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 129 states have (on average 2.7751937984496124) internal successors, (358), 145 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2022-11-18 19:52:16,924 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 7 [2022-11-18 19:52:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:16,925 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2022-11-18 19:52:16,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-18 19:52:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2022-11-18 19:52:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 19:52:16,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:16,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:16,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:17,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:17,140 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:17,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:17,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1217364497, now seen corresponding path program 1 times [2022-11-18 19:52:17,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:17,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647345640] [2022-11-18 19:52:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:17,141 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 [2022-11-18 19:52:17,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:17,142 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:17,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:17,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 19:52:17,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:17,383 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:52:17,383 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:52:17,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:17,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:18,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:18,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647345640] [2022-11-18 19:52:18,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647345640] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:18,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:18,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2022-11-18 19:52:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111383285] [2022-11-18 19:52:18,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:18,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:52:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:18,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:52:18,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:52:18,366 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2022-11-18 19:52:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:19,143 INFO L93 Difference]: Finished difference Result 228 states and 626 transitions. [2022-11-18 19:52:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:52:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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 7 [2022-11-18 19:52:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:19,146 INFO L225 Difference]: With dead ends: 228 [2022-11-18 19:52:19,147 INFO L226 Difference]: Without dead ends: 228 [2022-11-18 19:52:19,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:19,148 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 93 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:19,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 12 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 77 Unchecked, 0.2s Time] [2022-11-18 19:52:19,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-18 19:52:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 192. [2022-11-18 19:52:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 175 states have (on average 3.0171428571428573) internal successors, (528), 191 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:19,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 528 transitions. [2022-11-18 19:52:19,156 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 528 transitions. Word has length 7 [2022-11-18 19:52:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:19,156 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 528 transitions. [2022-11-18 19:52:19,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 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) [2022-11-18 19:52:19,157 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 528 transitions. [2022-11-18 19:52:19,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:52:19,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:19,158 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:19,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:19,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:19,371 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:19,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:19,371 INFO L85 PathProgramCache]: Analyzing trace with hash -541352335, now seen corresponding path program 2 times [2022-11-18 19:52:19,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:19,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705730026] [2022-11-18 19:52:19,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:52:19,372 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 [2022-11-18 19:52:19,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:19,373 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:19,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:19,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:52:19,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:19,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:52:19,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:19,574 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:52:19,574 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:52:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-18 19:52:19,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:19,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705730026] [2022-11-18 19:52:19,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705730026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:19,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:19,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:52:19,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433888955] [2022-11-18 19:52:19,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:19,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:52:19,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:52:19,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:52:19,743 INFO L87 Difference]: Start difference. First operand 192 states and 528 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-18 19:52:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:20,172 INFO L93 Difference]: Finished difference Result 100 states and 250 transitions. [2022-11-18 19:52:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:52:20,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2022-11-18 19:52:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:20,174 INFO L225 Difference]: With dead ends: 100 [2022-11-18 19:52:20,174 INFO L226 Difference]: Without dead ends: 100 [2022-11-18 19:52:20,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:20,175 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:20,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:52:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-18 19:52:20,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 46. [2022-11-18 19:52:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 2.159090909090909) internal successors, (95), 45 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 95 transitions. [2022-11-18 19:52:20,178 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 95 transitions. Word has length 9 [2022-11-18 19:52:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:20,178 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 95 transitions. [2022-11-18 19:52:20,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-18 19:52:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 95 transitions. [2022-11-18 19:52:20,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:52:20,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:20,179 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1] [2022-11-18 19:52:20,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:20,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:20,387 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:20,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:20,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1393344704, now seen corresponding path program 3 times [2022-11-18 19:52:20,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:20,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471710181] [2022-11-18 19:52:20,388 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:52:20,388 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 [2022-11-18 19:52:20,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:20,390 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:20,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:20,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-18 19:52:20,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:20,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:52:20,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:20,689 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-18 19:52:20,690 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 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-18 19:52:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:21,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:52:25,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:25,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471710181] [2022-11-18 19:52:25,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471710181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:25,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:25,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2022-11-18 19:52:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833206751] [2022-11-18 19:52:25,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:25,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:52:25,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:52:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:52:25,063 INFO L87 Difference]: Start difference. First operand 46 states and 95 transitions. Second operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:47,921 INFO L93 Difference]: Finished difference Result 718 states and 1559 transitions. [2022-11-18 19:52:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:52:47,922 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 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 [2022-11-18 19:52:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:47,925 INFO L225 Difference]: With dead ends: 718 [2022-11-18 19:52:47,926 INFO L226 Difference]: Without dead ends: 718 [2022-11-18 19:52:47,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 19:52:47,927 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2265 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:47,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 240 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-18 19:52:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-11-18 19:52:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 58. [2022-11-18 19:52:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 2.125) internal successors, (119), 57 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 119 transitions. [2022-11-18 19:52:47,935 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 119 transitions. Word has length 12 [2022-11-18 19:52:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:47,936 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 119 transitions. [2022-11-18 19:52:47,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 119 transitions. [2022-11-18 19:52:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:47,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:47,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:47,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:48,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:48,151 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash 925499688, now seen corresponding path program 1 times [2022-11-18 19:52:48,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:48,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469612568] [2022-11-18 19:52:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:48,153 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 [2022-11-18 19:52:48,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:48,154 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:48,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:48,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:48,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:48,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:48,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:48,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469612568] [2022-11-18 19:52:48,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469612568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:48,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:48,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:48,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809740372] [2022-11-18 19:52:48,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:48,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:48,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:48,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:48,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:48,436 INFO L87 Difference]: Start difference. First operand 58 states and 119 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:48,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:48,773 INFO L93 Difference]: Finished difference Result 78 states and 162 transitions. [2022-11-18 19:52:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:48,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:48,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:48,775 INFO L225 Difference]: With dead ends: 78 [2022-11-18 19:52:48,775 INFO L226 Difference]: Without dead ends: 78 [2022-11-18 19:52:48,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:48,776 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:48,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-18 19:52:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 64. [2022-11-18 19:52:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 2.129032258064516) internal successors, (132), 63 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 132 transitions. [2022-11-18 19:52:48,779 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 132 transitions. Word has length 15 [2022-11-18 19:52:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:48,779 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 132 transitions. [2022-11-18 19:52:48,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 132 transitions. [2022-11-18 19:52:48,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:48,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:48,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:48,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:48,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:48,993 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:48,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 892382746, now seen corresponding path program 2 times [2022-11-18 19:52:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127832054] [2022-11-18 19:52:48,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:52:48,994 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 [2022-11-18 19:52:48,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:48,995 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:49,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:49,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:52:49,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:49,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:49,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:49,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:49,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:49,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127832054] [2022-11-18 19:52:49,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127832054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:49,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:49,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:49,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982246111] [2022-11-18 19:52:49,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:49,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:49,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:49,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:49,237 INFO L87 Difference]: Start difference. First operand 64 states and 132 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:49,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:49,568 INFO L93 Difference]: Finished difference Result 84 states and 180 transitions. [2022-11-18 19:52:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:49,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:49,570 INFO L225 Difference]: With dead ends: 84 [2022-11-18 19:52:49,570 INFO L226 Difference]: Without dead ends: 84 [2022-11-18 19:52:49,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:49,571 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:49,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:49,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-18 19:52:49,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2022-11-18 19:52:49,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 64 states have (on average 2.203125) internal successors, (141), 65 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:49,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 141 transitions. [2022-11-18 19:52:49,578 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 141 transitions. Word has length 15 [2022-11-18 19:52:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:49,579 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 141 transitions. [2022-11-18 19:52:49,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:49,579 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 141 transitions. [2022-11-18 19:52:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:49,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:49,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:49,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:49,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:49,800 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:49,801 INFO L85 PathProgramCache]: Analyzing trace with hash 907248896, now seen corresponding path program 3 times [2022-11-18 19:52:49,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:49,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442241636] [2022-11-18 19:52:49,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:52:49,801 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 [2022-11-18 19:52:49,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:49,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:49,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:49,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 19:52:49,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:49,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:49,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:49,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:49,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:49,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442241636] [2022-11-18 19:52:49,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442241636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:49,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:49,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473779109] [2022-11-18 19:52:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:49,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:49,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:49,985 INFO L87 Difference]: Start difference. First operand 66 states and 141 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:50,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:50,341 INFO L93 Difference]: Finished difference Result 76 states and 168 transitions. [2022-11-18 19:52:50,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:50,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:50,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:50,343 INFO L225 Difference]: With dead ends: 76 [2022-11-18 19:52:50,343 INFO L226 Difference]: Without dead ends: 76 [2022-11-18 19:52:50,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:52:50,344 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:50,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:52:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-18 19:52:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2022-11-18 19:52:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 2.176470588235294) internal successors, (148), 69 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 148 transitions. [2022-11-18 19:52:50,347 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 148 transitions. Word has length 15 [2022-11-18 19:52:50,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:50,348 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 148 transitions. [2022-11-18 19:52:50,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:50,348 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2022-11-18 19:52:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:50,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:50,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:50,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:50,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:50,549 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:50,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:50,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1688796974, now seen corresponding path program 4 times [2022-11-18 19:52:50,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:50,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980553554] [2022-11-18 19:52:50,550 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:52:50,550 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 [2022-11-18 19:52:50,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:50,551 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:50,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:50,676 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:52:50,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:50,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:50,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:50,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:50,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980553554] [2022-11-18 19:52:50,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980553554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:50,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:50,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766413712] [2022-11-18 19:52:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:50,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:50,769 INFO L87 Difference]: Start difference. First operand 70 states and 148 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:51,201 INFO L93 Difference]: Finished difference Result 108 states and 228 transitions. [2022-11-18 19:52:51,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:51,203 INFO L225 Difference]: With dead ends: 108 [2022-11-18 19:52:51,203 INFO L226 Difference]: Without dead ends: 108 [2022-11-18 19:52:51,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:51,204 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:51,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:52:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-18 19:52:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 76. [2022-11-18 19:52:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 2.2972972972972974) internal successors, (170), 75 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 170 transitions. [2022-11-18 19:52:51,208 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 170 transitions. Word has length 15 [2022-11-18 19:52:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:51,208 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 170 transitions. [2022-11-18 19:52:51,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 170 transitions. [2022-11-18 19:52:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:51,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:51,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:51,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:51,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:51,419 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:51,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1703663124, now seen corresponding path program 5 times [2022-11-18 19:52:51,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:51,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523432996] [2022-11-18 19:52:51,420 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:52:51,420 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 [2022-11-18 19:52:51,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:51,426 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:51,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:51,555 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:52:51,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:51,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:51,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:51,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:51,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523432996] [2022-11-18 19:52:51,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523432996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:51,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:51,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:51,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449013109] [2022-11-18 19:52:51,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:51,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:51,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:51,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:51,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:51,631 INFO L87 Difference]: Start difference. First operand 76 states and 170 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:52,092 INFO L93 Difference]: Finished difference Result 104 states and 227 transitions. [2022-11-18 19:52:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:52,095 INFO L225 Difference]: With dead ends: 104 [2022-11-18 19:52:52,095 INFO L226 Difference]: Without dead ends: 104 [2022-11-18 19:52:52,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:52:52,097 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:52,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:52:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-18 19:52:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 74. [2022-11-18 19:52:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 2.236111111111111) internal successors, (161), 73 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 161 transitions. [2022-11-18 19:52:52,107 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 161 transitions. Word has length 15 [2022-11-18 19:52:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:52,109 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 161 transitions. [2022-11-18 19:52:52,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 161 transitions. [2022-11-18 19:52:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:52:52,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:52,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:52,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:52,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:52,325 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:52,325 INFO L85 PathProgramCache]: Analyzing trace with hash 560753512, now seen corresponding path program 6 times [2022-11-18 19:52:52,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:52,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440305311] [2022-11-18 19:52:52,325 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:52:52,325 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 [2022-11-18 19:52:52,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:52,327 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:52,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:52,449 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-11-18 19:52:52,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:52,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:52:52,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:52,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:52:52,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440305311] [2022-11-18 19:52:52,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440305311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:52:52,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:52:52,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:52:52,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603068752] [2022-11-18 19:52:52,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:52:52,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:52:52,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:52:52,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:52:52,511 INFO L87 Difference]: Start difference. First operand 74 states and 161 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:53,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:53,124 INFO L93 Difference]: Finished difference Result 98 states and 207 transitions. [2022-11-18 19:52:53,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:52:53,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-11-18 19:52:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:53,126 INFO L225 Difference]: With dead ends: 98 [2022-11-18 19:52:53,126 INFO L226 Difference]: Without dead ends: 98 [2022-11-18 19:52:53,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:52:53,127 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:53,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 9 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:52:53,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-18 19:52:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2022-11-18 19:52:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.1794871794871793) internal successors, (170), 79 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 170 transitions. [2022-11-18 19:52:53,139 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 170 transitions. Word has length 15 [2022-11-18 19:52:53,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:53,141 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 170 transitions. [2022-11-18 19:52:53,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 170 transitions. [2022-11-18 19:52:53,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:53,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:53,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:53,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:53,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:53,351 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:53,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:53,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1745902215, now seen corresponding path program 1 times [2022-11-18 19:52:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:53,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022352440] [2022-11-18 19:52:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:53,352 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 [2022-11-18 19:52:53,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:53,353 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:53,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:53,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:53,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:53,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:53,731 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 64 treesize of output 62 [2022-11-18 19:52:53,736 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 62 treesize of output 60 [2022-11-18 19:52:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:53,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:53,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022352440] [2022-11-18 19:52:53,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022352440] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:53,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:53,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:52:53,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031105305] [2022-11-18 19:52:53,795 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:53,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:52:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:52:53,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:53,796 INFO L87 Difference]: Start difference. First operand 80 states and 170 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:54,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:54,254 INFO L93 Difference]: Finished difference Result 100 states and 209 transitions. [2022-11-18 19:52:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:52:54,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:52:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:54,256 INFO L225 Difference]: With dead ends: 100 [2022-11-18 19:52:54,256 INFO L226 Difference]: Without dead ends: 100 [2022-11-18 19:52:54,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:52:54,257 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:54,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 11 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 20 Unchecked, 0.4s Time] [2022-11-18 19:52:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-18 19:52:54,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 84. [2022-11-18 19:52:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 2.1463414634146343) internal successors, (176), 83 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 176 transitions. [2022-11-18 19:52:54,261 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 176 transitions. Word has length 16 [2022-11-18 19:52:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:54,261 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 176 transitions. [2022-11-18 19:52:54,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2022-11-18 19:52:54,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:54,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:54,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:54,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:54,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:54,463 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash 437743919, now seen corresponding path program 1 times [2022-11-18 19:52:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:54,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836748691] [2022-11-18 19:52:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:54,464 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 [2022-11-18 19:52:54,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:54,466 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:54,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:52:54,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:54,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:54,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:54,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:54,805 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 64 treesize of output 62 [2022-11-18 19:52:54,809 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 62 treesize of output 60 [2022-11-18 19:52:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:54,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:54,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836748691] [2022-11-18 19:52:54,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836748691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:54,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:54,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:52:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346607588] [2022-11-18 19:52:54,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:54,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:52:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:54,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:52:54,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:54,895 INFO L87 Difference]: Start difference. First operand 84 states and 176 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:55,830 INFO L93 Difference]: Finished difference Result 150 states and 345 transitions. [2022-11-18 19:52:55,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:52:55,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:52:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:55,832 INFO L225 Difference]: With dead ends: 150 [2022-11-18 19:52:55,832 INFO L226 Difference]: Without dead ends: 150 [2022-11-18 19:52:55,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:52:55,832 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 63 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:55,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 25 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 78 Unchecked, 0.8s Time] [2022-11-18 19:52:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-18 19:52:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 92. [2022-11-18 19:52:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 2.1777777777777776) internal successors, (196), 91 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 196 transitions. [2022-11-18 19:52:55,837 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 196 transitions. Word has length 16 [2022-11-18 19:52:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:55,837 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 196 transitions. [2022-11-18 19:52:55,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 196 transitions. [2022-11-18 19:52:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:55,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:55,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:55,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:56,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:56,050 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:56,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash 404626977, now seen corresponding path program 2 times [2022-11-18 19:52:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:56,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948638181] [2022-11-18 19:52:56,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:52:56,052 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 [2022-11-18 19:52:56,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:56,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:56,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:56,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:52:56,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:56,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:56,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:56,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:56,435 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 64 treesize of output 62 [2022-11-18 19:52:56,440 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 62 treesize of output 60 [2022-11-18 19:52:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:56,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:56,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948638181] [2022-11-18 19:52:56,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948638181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:56,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:56,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:52:56,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401327010] [2022-11-18 19:52:56,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:56,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:52:56,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:52:56,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:56,575 INFO L87 Difference]: Start difference. First operand 92 states and 196 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:57,252 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2022-11-18 19:52:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:52:57,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:52:57,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:57,254 INFO L225 Difference]: With dead ends: 146 [2022-11-18 19:52:57,254 INFO L226 Difference]: Without dead ends: 146 [2022-11-18 19:52:57,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:52:57,255 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 56 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:57,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 119 Unchecked, 0.6s Time] [2022-11-18 19:52:57,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-18 19:52:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 96. [2022-11-18 19:52:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 2.276595744680851) internal successors, (214), 95 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 214 transitions. [2022-11-18 19:52:57,259 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 214 transitions. Word has length 16 [2022-11-18 19:52:57,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:57,260 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 214 transitions. [2022-11-18 19:52:57,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 214 transitions. [2022-11-18 19:52:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:57,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:57,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:57,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:57,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:57,475 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash 419493127, now seen corresponding path program 3 times [2022-11-18 19:52:57,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:57,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397942753] [2022-11-18 19:52:57,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:52:57,476 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 [2022-11-18 19:52:57,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:57,477 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:57,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:57,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:52:57,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:57,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:57,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:57,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:58,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:58,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397942753] [2022-11-18 19:52:58,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397942753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:58,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:58,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:52:58,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384855233] [2022-11-18 19:52:58,017 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:58,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:52:58,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:58,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:52:58,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:58,019 INFO L87 Difference]: Start difference. First operand 96 states and 214 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:58,340 INFO L93 Difference]: Finished difference Result 132 states and 323 transitions. [2022-11-18 19:52:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:52:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:52:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:58,342 INFO L225 Difference]: With dead ends: 132 [2022-11-18 19:52:58,342 INFO L226 Difference]: Without dead ends: 132 [2022-11-18 19:52:58,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:52:58,343 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:58,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 31 Unchecked, 0.3s Time] [2022-11-18 19:52:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-18 19:52:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 103. [2022-11-18 19:52:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 2.3267326732673266) internal successors, (235), 102 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 235 transitions. [2022-11-18 19:52:58,346 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 235 transitions. Word has length 16 [2022-11-18 19:52:58,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:58,347 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 235 transitions. [2022-11-18 19:52:58,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:52:58,347 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 235 transitions. [2022-11-18 19:52:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:58,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:58,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:58,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:52:58,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:52:58,561 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:52:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash 672119633, now seen corresponding path program 4 times [2022-11-18 19:52:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:52:58,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898416212] [2022-11-18 19:52:58,563 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:52:58,563 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 [2022-11-18 19:52:58,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:52:58,564 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:52:58,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:52:58,726 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:52:58,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:52:58,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:52:58,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:52:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:58,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:52:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:52:59,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:52:59,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898416212] [2022-11-18 19:52:59,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898416212] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:52:59,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:52:59,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:52:59,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602929127] [2022-11-18 19:52:59,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:52:59,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:52:59,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:52:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:52:59,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:52:59,032 INFO L87 Difference]: Start difference. First operand 103 states and 235 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:52:59,855 INFO L93 Difference]: Finished difference Result 151 states and 360 transitions. [2022-11-18 19:52:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:52:59,857 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 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 16 [2022-11-18 19:52:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:52:59,858 INFO L225 Difference]: With dead ends: 151 [2022-11-18 19:52:59,858 INFO L226 Difference]: Without dead ends: 151 [2022-11-18 19:52:59,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:52:59,859 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:52:59,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 52 Unchecked, 0.7s Time] [2022-11-18 19:52:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-18 19:52:59,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 103. [2022-11-18 19:52:59,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 2.287128712871287) internal successors, (231), 102 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 231 transitions. [2022-11-18 19:52:59,864 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 231 transitions. Word has length 16 [2022-11-18 19:52:59,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:52:59,865 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 231 transitions. [2022-11-18 19:52:59,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:59,865 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 231 transitions. [2022-11-18 19:52:59,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:52:59,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:52:59,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:52:59,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:00,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:00,079 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:00,079 INFO L85 PathProgramCache]: Analyzing trace with hash -185565605, now seen corresponding path program 5 times [2022-11-18 19:53:00,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:00,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677860091] [2022-11-18 19:53:00,080 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:00,080 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 [2022-11-18 19:53:00,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:00,081 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:00,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:00,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:00,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:00,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:00,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:00,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:00,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:00,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677860091] [2022-11-18 19:53:00,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677860091] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:00,612 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:00,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:00,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167048929] [2022-11-18 19:53:00,612 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:00,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:00,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:00,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:00,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:00,613 INFO L87 Difference]: Start difference. First operand 103 states and 231 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:01,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:01,368 INFO L93 Difference]: Finished difference Result 152 states and 351 transitions. [2022-11-18 19:53:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:53:01,369 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 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 16 [2022-11-18 19:53:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:01,370 INFO L225 Difference]: With dead ends: 152 [2022-11-18 19:53:01,370 INFO L226 Difference]: Without dead ends: 152 [2022-11-18 19:53:01,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:53:01,371 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 41 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 156 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 14 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 156 Unchecked, 0.6s Time] [2022-11-18 19:53:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-11-18 19:53:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 98. [2022-11-18 19:53:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 96 states have (on average 2.2083333333333335) internal successors, (212), 97 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 212 transitions. [2022-11-18 19:53:01,374 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 212 transitions. Word has length 16 [2022-11-18 19:53:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:01,374 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 212 transitions. [2022-11-18 19:53:01,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 212 transitions. [2022-11-18 19:53:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:01,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:01,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:01,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:01,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:01,576 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:01,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:01,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1788182581, now seen corresponding path program 2 times [2022-11-18 19:53:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:01,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907065362] [2022-11-18 19:53:01,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:01,577 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 [2022-11-18 19:53:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:01,579 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:01,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:01,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:01,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:01,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:01,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:01,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:01,899 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 64 treesize of output 62 [2022-11-18 19:53:01,903 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 62 treesize of output 60 [2022-11-18 19:53:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:02,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:02,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907065362] [2022-11-18 19:53:02,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907065362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:02,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:02,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:02,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886189102] [2022-11-18 19:53:02,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:02,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:02,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:02,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:02,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:02,123 INFO L87 Difference]: Start difference. First operand 98 states and 212 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:02,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:02,565 INFO L93 Difference]: Finished difference Result 136 states and 307 transitions. [2022-11-18 19:53:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:53:02,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:02,566 INFO L225 Difference]: With dead ends: 136 [2022-11-18 19:53:02,567 INFO L226 Difference]: Without dead ends: 136 [2022-11-18 19:53:02,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:53:02,567 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 35 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:02,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 5 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 36 Unchecked, 0.4s Time] [2022-11-18 19:53:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-18 19:53:02,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 104. [2022-11-18 19:53:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 2.343137254901961) internal successors, (239), 103 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:02,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 239 transitions. [2022-11-18 19:53:02,570 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 239 transitions. Word has length 16 [2022-11-18 19:53:02,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:02,571 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 239 transitions. [2022-11-18 19:53:02,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 239 transitions. [2022-11-18 19:53:02,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:02,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:02,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:02,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:02,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:02,775 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:02,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:02,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1773316431, now seen corresponding path program 3 times [2022-11-18 19:53:02,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:02,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [985774955] [2022-11-18 19:53:02,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:53:02,776 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 [2022-11-18 19:53:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:02,777 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:02,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:02,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:53:02,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:02,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:02,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:03,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:03,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:03,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [985774955] [2022-11-18 19:53:03,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [985774955] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:03,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:03,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043287487] [2022-11-18 19:53:03,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:03,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:03,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:03,333 INFO L87 Difference]: Start difference. First operand 104 states and 239 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:04,076 INFO L93 Difference]: Finished difference Result 133 states and 307 transitions. [2022-11-18 19:53:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:04,079 INFO L225 Difference]: With dead ends: 133 [2022-11-18 19:53:04,079 INFO L226 Difference]: Without dead ends: 133 [2022-11-18 19:53:04,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:53:04,080 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:04,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 9 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 165 Invalid, 0 Unknown, 86 Unchecked, 0.6s Time] [2022-11-18 19:53:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-18 19:53:04,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 104. [2022-11-18 19:53:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 2.343137254901961) internal successors, (239), 103 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 239 transitions. [2022-11-18 19:53:04,084 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 239 transitions. Word has length 16 [2022-11-18 19:53:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:04,084 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 239 transitions. [2022-11-18 19:53:04,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 239 transitions. [2022-11-18 19:53:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:04,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:04,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:04,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:04,301 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:04,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1522439879, now seen corresponding path program 4 times [2022-11-18 19:53:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:04,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625557713] [2022-11-18 19:53:04,302 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:04,302 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 [2022-11-18 19:53:04,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:04,303 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:04,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:04,458 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:04,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:04,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:04,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:04,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:04,624 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 64 treesize of output 62 [2022-11-18 19:53:04,631 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 62 treesize of output 60 [2022-11-18 19:53:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:04,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:04,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625557713] [2022-11-18 19:53:04,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625557713] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:04,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:04,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:04,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999473036] [2022-11-18 19:53:04,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:04,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:04,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:04,812 INFO L87 Difference]: Start difference. First operand 104 states and 239 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:05,367 INFO L93 Difference]: Finished difference Result 130 states and 298 transitions. [2022-11-18 19:53:05,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:53:05,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:05,369 INFO L225 Difference]: With dead ends: 130 [2022-11-18 19:53:05,369 INFO L226 Difference]: Without dead ends: 130 [2022-11-18 19:53:05,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:05,370 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 8 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 162 Invalid, 0 Unknown, 56 Unchecked, 0.5s Time] [2022-11-18 19:53:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-18 19:53:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2022-11-18 19:53:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 2.343137254901961) internal successors, (239), 103 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 239 transitions. [2022-11-18 19:53:05,374 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 239 transitions. Word has length 16 [2022-11-18 19:53:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:05,374 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 239 transitions. [2022-11-18 19:53:05,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 239 transitions. [2022-11-18 19:53:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:05,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:05,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:05,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:05,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:05,587 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:05,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:05,587 INFO L85 PathProgramCache]: Analyzing trace with hash -795245917, now seen corresponding path program 6 times [2022-11-18 19:53:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:05,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664949257] [2022-11-18 19:53:05,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:53:05,588 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 [2022-11-18 19:53:05,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:05,589 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:05,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:05,898 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:53:05,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:05,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:05,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:06,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:06,051 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 64 treesize of output 62 [2022-11-18 19:53:06,057 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 62 treesize of output 60 [2022-11-18 19:53:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:06,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:06,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664949257] [2022-11-18 19:53:06,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664949257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:06,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:06,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615768277] [2022-11-18 19:53:06,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:06,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:06,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:06,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:06,238 INFO L87 Difference]: Start difference. First operand 104 states and 239 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:06,703 INFO L93 Difference]: Finished difference Result 130 states and 312 transitions. [2022-11-18 19:53:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:53:06,704 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:06,705 INFO L225 Difference]: With dead ends: 130 [2022-11-18 19:53:06,705 INFO L226 Difference]: Without dead ends: 130 [2022-11-18 19:53:06,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:06,706 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:06,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 60 Unchecked, 0.5s Time] [2022-11-18 19:53:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-18 19:53:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 110. [2022-11-18 19:53:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.4444444444444446) internal successors, (264), 109 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:06,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 264 transitions. [2022-11-18 19:53:06,710 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 264 transitions. Word has length 16 [2022-11-18 19:53:06,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:06,711 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 264 transitions. [2022-11-18 19:53:06,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:06,711 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 264 transitions. [2022-11-18 19:53:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:06,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:06,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:06,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:06,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:06,915 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash -780379767, now seen corresponding path program 7 times [2022-11-18 19:53:06,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:06,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672620966] [2022-11-18 19:53:06,916 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:53:06,916 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 [2022-11-18 19:53:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:06,917 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:06,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:07,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:07,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:07,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:07,383 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:07,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672620966] [2022-11-18 19:53:07,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672620966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:07,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:07,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927853353] [2022-11-18 19:53:07,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:07,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:07,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:07,384 INFO L87 Difference]: Start difference. First operand 110 states and 264 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:07,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:07,980 INFO L93 Difference]: Finished difference Result 138 states and 339 transitions. [2022-11-18 19:53:07,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:07,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:07,983 INFO L225 Difference]: With dead ends: 138 [2022-11-18 19:53:07,983 INFO L226 Difference]: Without dead ends: 138 [2022-11-18 19:53:07,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:07,984 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:07,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 61 Unchecked, 0.5s Time] [2022-11-18 19:53:07,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-18 19:53:07,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2022-11-18 19:53:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 2.4363636363636365) internal successors, (268), 111 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 268 transitions. [2022-11-18 19:53:07,989 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 268 transitions. Word has length 16 [2022-11-18 19:53:07,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:07,989 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 268 transitions. [2022-11-18 19:53:07,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 268 transitions. [2022-11-18 19:53:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:07,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:07,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:08,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:53:08,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:08,204 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1942826935, now seen corresponding path program 8 times [2022-11-18 19:53:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:08,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652512118] [2022-11-18 19:53:08,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:08,204 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 [2022-11-18 19:53:08,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:08,205 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:08,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:08,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:08,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:08,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:08,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:08,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:08,647 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 64 treesize of output 62 [2022-11-18 19:53:08,651 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 62 treesize of output 60 [2022-11-18 19:53:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:08,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:08,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652512118] [2022-11-18 19:53:08,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652512118] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:08,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:08,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455739232] [2022-11-18 19:53:08,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:08,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:08,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:08,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:08,908 INFO L87 Difference]: Start difference. First operand 112 states and 268 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:09,363 INFO L93 Difference]: Finished difference Result 169 states and 394 transitions. [2022-11-18 19:53:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:53:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 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 16 [2022-11-18 19:53:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:09,365 INFO L225 Difference]: With dead ends: 169 [2022-11-18 19:53:09,365 INFO L226 Difference]: Without dead ends: 169 [2022-11-18 19:53:09,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:09,366 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:09,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 6 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 122 Unchecked, 0.4s Time] [2022-11-18 19:53:09,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-18 19:53:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 110. [2022-11-18 19:53:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.4166666666666665) internal successors, (261), 109 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 261 transitions. [2022-11-18 19:53:09,370 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 261 transitions. Word has length 16 [2022-11-18 19:53:09,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:09,371 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 261 transitions. [2022-11-18 19:53:09,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 261 transitions. [2022-11-18 19:53:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:09,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:09,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:09,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:09,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:09,592 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:09,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:09,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1425822007, now seen corresponding path program 5 times [2022-11-18 19:53:09,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:09,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533893511] [2022-11-18 19:53:09,594 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:09,594 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 [2022-11-18 19:53:09,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:09,595 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:09,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:09,802 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:09,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:09,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:09,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:09,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:09,921 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 64 treesize of output 62 [2022-11-18 19:53:09,926 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 62 treesize of output 60 [2022-11-18 19:53:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:10,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:10,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533893511] [2022-11-18 19:53:10,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533893511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:10,317 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:10,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:10,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957785298] [2022-11-18 19:53:10,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:10,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:10,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:10,319 INFO L87 Difference]: Start difference. First operand 110 states and 261 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:10,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:10,946 INFO L93 Difference]: Finished difference Result 187 states and 420 transitions. [2022-11-18 19:53:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:10,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:10,948 INFO L225 Difference]: With dead ends: 187 [2022-11-18 19:53:10,949 INFO L226 Difference]: Without dead ends: 187 [2022-11-18 19:53:10,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:53:10,949 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 65 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 143 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:10,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 7 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 143 Unchecked, 0.6s Time] [2022-11-18 19:53:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-18 19:53:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2022-11-18 19:53:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 113 states have (on average 2.5132743362831858) internal successors, (284), 114 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 284 transitions. [2022-11-18 19:53:10,954 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 284 transitions. Word has length 16 [2022-11-18 19:53:10,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:10,955 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 284 transitions. [2022-11-18 19:53:10,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:10,955 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 284 transitions. [2022-11-18 19:53:10,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:10,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:10,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:10,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:11,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:11,169 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:11,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:11,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1440688157, now seen corresponding path program 6 times [2022-11-18 19:53:11,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:11,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880716641] [2022-11-18 19:53:11,170 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:53:11,170 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 [2022-11-18 19:53:11,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:11,171 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:11,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:11,371 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:53:11,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:11,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:11,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:11,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:11,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:11,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880716641] [2022-11-18 19:53:11,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880716641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:11,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:11,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336875590] [2022-11-18 19:53:11,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:11,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:11,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:11,853 INFO L87 Difference]: Start difference. First operand 115 states and 284 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:12,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:12,900 INFO L93 Difference]: Finished difference Result 184 states and 422 transitions. [2022-11-18 19:53:12,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:53:12,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:12,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:12,903 INFO L225 Difference]: With dead ends: 184 [2022-11-18 19:53:12,903 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 19:53:12,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:53:12,903 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 61 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:12,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 7 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 119 Unchecked, 0.8s Time] [2022-11-18 19:53:12,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 19:53:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 118. [2022-11-18 19:53:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 2.5172413793103448) internal successors, (292), 117 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 292 transitions. [2022-11-18 19:53:12,908 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 292 transitions. Word has length 16 [2022-11-18 19:53:12,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:12,908 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 292 transitions. [2022-11-18 19:53:12,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 292 transitions. [2022-11-18 19:53:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:12,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:12,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:12,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:53:13,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:13,109 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:13,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash 441477171, now seen corresponding path program 7 times [2022-11-18 19:53:13,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:13,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112489011] [2022-11-18 19:53:13,110 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:53:13,110 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 [2022-11-18 19:53:13,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:13,111 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:13,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:13,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:13,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:13,426 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 64 treesize of output 62 [2022-11-18 19:53:13,432 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 62 treesize of output 60 [2022-11-18 19:53:13,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:13,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:13,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112489011] [2022-11-18 19:53:13,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112489011] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:13,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:13,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:13,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536773549] [2022-11-18 19:53:13,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:13,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:13,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:13,691 INFO L87 Difference]: Start difference. First operand 118 states and 292 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:14,351 INFO L93 Difference]: Finished difference Result 159 states and 369 transitions. [2022-11-18 19:53:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:53:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:14,354 INFO L225 Difference]: With dead ends: 159 [2022-11-18 19:53:14,354 INFO L226 Difference]: Without dead ends: 159 [2022-11-18 19:53:14,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:14,354 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:14,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 33 Unchecked, 0.7s Time] [2022-11-18 19:53:14,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-18 19:53:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 118. [2022-11-18 19:53:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 2.5172413793103448) internal successors, (292), 117 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 292 transitions. [2022-11-18 19:53:14,359 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 292 transitions. Word has length 16 [2022-11-18 19:53:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:14,360 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 292 transitions. [2022-11-18 19:53:14,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 292 transitions. [2022-11-18 19:53:14,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:14,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:14,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:14,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:14,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:14,567 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1876208625, now seen corresponding path program 9 times [2022-11-18 19:53:14,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:14,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400691027] [2022-11-18 19:53:14,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:53:14,568 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 [2022-11-18 19:53:14,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:14,569 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:14,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:14,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:53:14,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:14,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:14,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:14,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:14,950 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 64 treesize of output 62 [2022-11-18 19:53:14,955 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 62 treesize of output 60 [2022-11-18 19:53:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:15,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:15,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400691027] [2022-11-18 19:53:15,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400691027] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:15,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:15,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:15,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684807893] [2022-11-18 19:53:15,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:15,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:15,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:15,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:15,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:15,170 INFO L87 Difference]: Start difference. First operand 118 states and 292 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:15,849 INFO L93 Difference]: Finished difference Result 191 states and 432 transitions. [2022-11-18 19:53:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:53:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:15,851 INFO L225 Difference]: With dead ends: 191 [2022-11-18 19:53:15,851 INFO L226 Difference]: Without dead ends: 191 [2022-11-18 19:53:15,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:15,852 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 56 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:15,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 7 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 89 Unchecked, 0.6s Time] [2022-11-18 19:53:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-18 19:53:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 121. [2022-11-18 19:53:15,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 2.5714285714285716) internal successors, (306), 120 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 306 transitions. [2022-11-18 19:53:15,856 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 306 transitions. Word has length 16 [2022-11-18 19:53:15,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:15,857 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 306 transitions. [2022-11-18 19:53:15,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 306 transitions. [2022-11-18 19:53:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:15,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:15,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:15,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:16,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:16,071 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:16,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1861342475, now seen corresponding path program 10 times [2022-11-18 19:53:16,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:16,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369021063] [2022-11-18 19:53:16,072 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:16,072 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 [2022-11-18 19:53:16,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:16,073 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:16,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:16,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:16,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:16,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:16,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:16,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:16,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:16,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369021063] [2022-11-18 19:53:16,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369021063] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:16,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:16,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:16,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139723372] [2022-11-18 19:53:16,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:16,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:16,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:16,608 INFO L87 Difference]: Start difference. First operand 121 states and 306 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:17,314 INFO L93 Difference]: Finished difference Result 177 states and 421 transitions. [2022-11-18 19:53:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:53:17,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:17,315 INFO L225 Difference]: With dead ends: 177 [2022-11-18 19:53:17,315 INFO L226 Difference]: Without dead ends: 177 [2022-11-18 19:53:17,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:53:17,316 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:17,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 6 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 85 Unchecked, 0.6s Time] [2022-11-18 19:53:17,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-18 19:53:17,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 120. [2022-11-18 19:53:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 2.5508474576271185) internal successors, (301), 119 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:17,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 301 transitions. [2022-11-18 19:53:17,319 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 301 transitions. Word has length 16 [2022-11-18 19:53:17,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:17,320 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 301 transitions. [2022-11-18 19:53:17,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:17,320 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 301 transitions. [2022-11-18 19:53:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:17,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:17,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:17,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:17,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:17,523 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash -596187015, now seen corresponding path program 8 times [2022-11-18 19:53:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:17,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747094351] [2022-11-18 19:53:17,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:17,524 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 [2022-11-18 19:53:17,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:17,525 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:17,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:17,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:17,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:17,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:17,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:17,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:17,837 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 64 treesize of output 62 [2022-11-18 19:53:17,841 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 62 treesize of output 60 [2022-11-18 19:53:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:18,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:18,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747094351] [2022-11-18 19:53:18,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747094351] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:18,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:18,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:18,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877222645] [2022-11-18 19:53:18,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:18,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:18,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:18,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:18,035 INFO L87 Difference]: Start difference. First operand 120 states and 301 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:18,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:18,885 INFO L93 Difference]: Finished difference Result 236 states and 539 transitions. [2022-11-18 19:53:18,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:18,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:18,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:18,887 INFO L225 Difference]: With dead ends: 236 [2022-11-18 19:53:18,887 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 19:53:18,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:18,887 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:18,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 17 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 230 Invalid, 0 Unknown, 139 Unchecked, 0.8s Time] [2022-11-18 19:53:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 19:53:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 131. [2022-11-18 19:53:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 129 states have (on average 2.643410852713178) internal successors, (341), 130 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 341 transitions. [2022-11-18 19:53:18,893 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 341 transitions. Word has length 16 [2022-11-18 19:53:18,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:18,893 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 341 transitions. [2022-11-18 19:53:18,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 341 transitions. [2022-11-18 19:53:18,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:18,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:18,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:18,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:19,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:19,107 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:19,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:19,108 INFO L85 PathProgramCache]: Analyzing trace with hash -581320865, now seen corresponding path program 9 times [2022-11-18 19:53:19,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:19,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561754334] [2022-11-18 19:53:19,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:53:19,108 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 [2022-11-18 19:53:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:19,109 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:19,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:19,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:53:19,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:19,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:19,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:19,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:19,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:19,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561754334] [2022-11-18 19:53:19,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561754334] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:19,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:19,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463483391] [2022-11-18 19:53:19,701 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:19,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:19,702 INFO L87 Difference]: Start difference. First operand 131 states and 341 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:20,610 INFO L93 Difference]: Finished difference Result 235 states and 552 transitions. [2022-11-18 19:53:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:53:20,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:20,612 INFO L225 Difference]: With dead ends: 235 [2022-11-18 19:53:20,612 INFO L226 Difference]: Without dead ends: 235 [2022-11-18 19:53:20,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:53:20,612 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 79 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:20,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 12 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 98 Unchecked, 0.7s Time] [2022-11-18 19:53:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-18 19:53:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 128. [2022-11-18 19:53:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 2.5952380952380953) internal successors, (327), 127 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 327 transitions. [2022-11-18 19:53:20,618 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 327 transitions. Word has length 16 [2022-11-18 19:53:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:20,618 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 327 transitions. [2022-11-18 19:53:20,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:20,619 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 327 transitions. [2022-11-18 19:53:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 19:53:20,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:20,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:20,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:20,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:20,831 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1724230477, now seen corresponding path program 10 times [2022-11-18 19:53:20,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:20,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970353838] [2022-11-18 19:53:20,832 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:20,832 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 [2022-11-18 19:53:20,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:20,833 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:20,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:21,021 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:21,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:21,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:53:21,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:21,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:21,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:21,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970353838] [2022-11-18 19:53:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970353838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:21,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:21,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:53:21,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791201257] [2022-11-18 19:53:21,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:21,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:53:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:21,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:53:21,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:53:21,231 INFO L87 Difference]: Start difference. First operand 128 states and 327 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:22,751 INFO L93 Difference]: Finished difference Result 243 states and 566 transitions. [2022-11-18 19:53:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:53:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 16 [2022-11-18 19:53:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:22,754 INFO L225 Difference]: With dead ends: 243 [2022-11-18 19:53:22,754 INFO L226 Difference]: Without dead ends: 243 [2022-11-18 19:53:22,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:22,755 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 90 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:22,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 29 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 76 Unchecked, 1.3s Time] [2022-11-18 19:53:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-18 19:53:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 134. [2022-11-18 19:53:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 2.5454545454545454) internal successors, (336), 133 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 336 transitions. [2022-11-18 19:53:22,760 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 336 transitions. Word has length 16 [2022-11-18 19:53:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:22,760 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 336 transitions. [2022-11-18 19:53:22,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2022-11-18 19:53:22,760 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 336 transitions. [2022-11-18 19:53:22,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:22,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:22,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:22,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:22,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:22,962 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 271257764, now seen corresponding path program 1 times [2022-11-18 19:53:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007022873] [2022-11-18 19:53:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:22,963 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 [2022-11-18 19:53:22,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:22,963 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:22,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:23,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:23,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:23,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:23,290 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 64 treesize of output 62 [2022-11-18 19:53:23,296 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 62 treesize of output 60 [2022-11-18 19:53:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:23,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:23,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007022873] [2022-11-18 19:53:23,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007022873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:23,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:23,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:23,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649223508] [2022-11-18 19:53:23,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:23,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:23,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:23,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:23,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:23,623 INFO L87 Difference]: Start difference. First operand 134 states and 336 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:24,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:24,446 INFO L93 Difference]: Finished difference Result 207 states and 535 transitions. [2022-11-18 19:53:24,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:53:24,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:24,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:24,447 INFO L225 Difference]: With dead ends: 207 [2022-11-18 19:53:24,447 INFO L226 Difference]: Without dead ends: 207 [2022-11-18 19:53:24,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:24,448 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:24,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 11 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 108 Unchecked, 0.8s Time] [2022-11-18 19:53:24,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-18 19:53:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 143. [2022-11-18 19:53:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 2.652482269503546) internal successors, (374), 142 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:24,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 374 transitions. [2022-11-18 19:53:24,452 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 374 transitions. Word has length 17 [2022-11-18 19:53:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:24,453 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 374 transitions. [2022-11-18 19:53:24,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 374 transitions. [2022-11-18 19:53:24,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:24,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:24,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:24,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:24,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:24,667 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:24,667 INFO L85 PathProgramCache]: Analyzing trace with hash 286123914, now seen corresponding path program 2 times [2022-11-18 19:53:24,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:24,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92018469] [2022-11-18 19:53:24,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:24,668 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 [2022-11-18 19:53:24,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:24,669 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:24,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:24,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:24,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:24,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:24,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:25,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:25,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:25,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92018469] [2022-11-18 19:53:25,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92018469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:25,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:25,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446646423] [2022-11-18 19:53:25,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:25,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:25,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:25,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:25,332 INFO L87 Difference]: Start difference. First operand 143 states and 374 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:26,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:26,537 INFO L93 Difference]: Finished difference Result 224 states and 570 transitions. [2022-11-18 19:53:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 19:53:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:26,539 INFO L225 Difference]: With dead ends: 224 [2022-11-18 19:53:26,539 INFO L226 Difference]: Without dead ends: 224 [2022-11-18 19:53:26,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:53:26,540 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 66 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 322 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:26,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 15 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 206 Invalid, 0 Unknown, 322 Unchecked, 0.8s Time] [2022-11-18 19:53:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-18 19:53:26,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 143. [2022-11-18 19:53:26,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 2.6382978723404253) internal successors, (372), 142 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 372 transitions. [2022-11-18 19:53:26,546 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 372 transitions. Word has length 17 [2022-11-18 19:53:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:26,546 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 372 transitions. [2022-11-18 19:53:26,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 372 transitions. [2022-11-18 19:53:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:26,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:26,547 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:26,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:26,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:26,761 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:26,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1264194428, now seen corresponding path program 11 times [2022-11-18 19:53:26,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:26,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188755827] [2022-11-18 19:53:26,762 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:26,762 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 [2022-11-18 19:53:26,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:26,763 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:26,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:27,151 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:27,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:27,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:27,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:27,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:27,318 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 64 treesize of output 62 [2022-11-18 19:53:27,324 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 62 treesize of output 60 [2022-11-18 19:53:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:27,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:27,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188755827] [2022-11-18 19:53:27,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188755827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:27,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:27,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:27,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324170872] [2022-11-18 19:53:27,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:27,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:27,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:27,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:27,683 INFO L87 Difference]: Start difference. First operand 143 states and 372 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:28,980 INFO L93 Difference]: Finished difference Result 256 states and 651 transitions. [2022-11-18 19:53:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:28,982 INFO L225 Difference]: With dead ends: 256 [2022-11-18 19:53:28,983 INFO L226 Difference]: Without dead ends: 256 [2022-11-18 19:53:28,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:53:28,983 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 269 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:28,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 12 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 269 Unchecked, 0.7s Time] [2022-11-18 19:53:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-18 19:53:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 150. [2022-11-18 19:53:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 148 states have (on average 2.72972972972973) internal successors, (404), 149 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 404 transitions. [2022-11-18 19:53:28,987 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 404 transitions. Word has length 17 [2022-11-18 19:53:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:28,987 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 404 transitions. [2022-11-18 19:53:28,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:28,988 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 404 transitions. [2022-11-18 19:53:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:28,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:28,988 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:29,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:29,191 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1279060578, now seen corresponding path program 12 times [2022-11-18 19:53:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:29,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467906929] [2022-11-18 19:53:29,191 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:53:29,192 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 [2022-11-18 19:53:29,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:29,193 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:29,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:29,510 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:53:29,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:29,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:29,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:29,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:29,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:29,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467906929] [2022-11-18 19:53:29,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467906929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:29,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:29,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:29,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020720199] [2022-11-18 19:53:29,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:29,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:29,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:29,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:29,875 INFO L87 Difference]: Start difference. First operand 150 states and 404 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:32,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:32,031 INFO L93 Difference]: Finished difference Result 243 states and 636 transitions. [2022-11-18 19:53:32,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 19:53:32,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:32,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:32,034 INFO L225 Difference]: With dead ends: 243 [2022-11-18 19:53:32,034 INFO L226 Difference]: Without dead ends: 243 [2022-11-18 19:53:32,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2022-11-18 19:53:32,035 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 101 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:32,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 17 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 270 Unchecked, 0.8s Time] [2022-11-18 19:53:32,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-18 19:53:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 147. [2022-11-18 19:53:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 145 states have (on average 2.689655172413793) internal successors, (390), 146 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 390 transitions. [2022-11-18 19:53:32,040 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 390 transitions. Word has length 17 [2022-11-18 19:53:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:32,040 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 390 transitions. [2022-11-18 19:53:32,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:32,041 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 390 transitions. [2022-11-18 19:53:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:32,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:32,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:32,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:32,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:32,256 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:32,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:32,256 INFO L85 PathProgramCache]: Analyzing trace with hash 608044536, now seen corresponding path program 3 times [2022-11-18 19:53:32,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:32,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104380647] [2022-11-18 19:53:32,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:53:32,257 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 [2022-11-18 19:53:32,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:32,257 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:32,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:32,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:53:32,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:32,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:32,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:32,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:32,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:32,668 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 64 treesize of output 62 [2022-11-18 19:53:32,673 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 62 treesize of output 60 [2022-11-18 19:53:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:32,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:32,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104380647] [2022-11-18 19:53:32,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104380647] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:32,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:32,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:32,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994812311] [2022-11-18 19:53:32,989 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:32,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:32,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:32,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:32,989 INFO L87 Difference]: Start difference. First operand 147 states and 390 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:33,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:33,843 INFO L93 Difference]: Finished difference Result 236 states and 610 transitions. [2022-11-18 19:53:33,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:53:33,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:33,846 INFO L225 Difference]: With dead ends: 236 [2022-11-18 19:53:33,846 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 19:53:33,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:53:33,847 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 46 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 147 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:33,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 13 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 147 Unchecked, 0.8s Time] [2022-11-18 19:53:33,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 19:53:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 143. [2022-11-18 19:53:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 2.673758865248227) internal successors, (377), 142 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 377 transitions. [2022-11-18 19:53:33,852 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 377 transitions. Word has length 17 [2022-11-18 19:53:33,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:33,852 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 377 transitions. [2022-11-18 19:53:33,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 377 transitions. [2022-11-18 19:53:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:33,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:33,853 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:33,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:34,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:34,054 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:34,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:34,054 INFO L85 PathProgramCache]: Analyzing trace with hash -133942816, now seen corresponding path program 11 times [2022-11-18 19:53:34,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:34,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511623873] [2022-11-18 19:53:34,054 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:34,054 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 [2022-11-18 19:53:34,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:34,055 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:34,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:34,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:34,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:34,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:34,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:34,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:34,474 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 64 treesize of output 62 [2022-11-18 19:53:34,479 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 62 treesize of output 60 [2022-11-18 19:53:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:34,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:34,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511623873] [2022-11-18 19:53:34,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511623873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:34,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:34,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:34,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200118499] [2022-11-18 19:53:34,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:34,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:34,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:34,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:34,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:34,856 INFO L87 Difference]: Start difference. First operand 143 states and 377 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:35,349 INFO L93 Difference]: Finished difference Result 180 states and 472 transitions. [2022-11-18 19:53:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:35,352 INFO L225 Difference]: With dead ends: 180 [2022-11-18 19:53:35,352 INFO L226 Difference]: Without dead ends: 180 [2022-11-18 19:53:35,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:35,353 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:35,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 28 Unchecked, 0.5s Time] [2022-11-18 19:53:35,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-18 19:53:35,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 140. [2022-11-18 19:53:35,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 138 states have (on average 2.630434782608696) internal successors, (363), 139 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 363 transitions. [2022-11-18 19:53:35,357 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 363 transitions. Word has length 17 [2022-11-18 19:53:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:35,358 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 363 transitions. [2022-11-18 19:53:35,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 363 transitions. [2022-11-18 19:53:35,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:35,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:35,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:35,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:35,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:35,563 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:35,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2006574866, now seen corresponding path program 4 times [2022-11-18 19:53:35,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715279648] [2022-11-18 19:53:35,564 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:35,564 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 [2022-11-18 19:53:35,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:35,564 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:35,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:35,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:35,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:35,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:35,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:35,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:35,908 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 64 treesize of output 62 [2022-11-18 19:53:35,914 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 62 treesize of output 60 [2022-11-18 19:53:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:36,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:36,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715279648] [2022-11-18 19:53:36,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715279648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:36,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:36,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:36,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500581667] [2022-11-18 19:53:36,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:36,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:36,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:36,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:36,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:36,450 INFO L87 Difference]: Start difference. First operand 140 states and 363 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:37,068 INFO L93 Difference]: Finished difference Result 200 states and 513 transitions. [2022-11-18 19:53:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:37,070 INFO L225 Difference]: With dead ends: 200 [2022-11-18 19:53:37,071 INFO L226 Difference]: Without dead ends: 200 [2022-11-18 19:53:37,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:37,071 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:37,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 61 Unchecked, 0.6s Time] [2022-11-18 19:53:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-18 19:53:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 151. [2022-11-18 19:53:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 149 states have (on average 2.7583892617449663) internal successors, (411), 150 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 411 transitions. [2022-11-18 19:53:37,077 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 411 transitions. Word has length 17 [2022-11-18 19:53:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:37,077 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 411 transitions. [2022-11-18 19:53:37,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 411 transitions. [2022-11-18 19:53:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:37,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:37,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:37,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:37,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:37,294 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:37,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:37,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2021441016, now seen corresponding path program 5 times [2022-11-18 19:53:37,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:37,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648171180] [2022-11-18 19:53:37,295 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:37,295 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 [2022-11-18 19:53:37,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:37,296 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:37,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:37,555 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:37,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:37,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:37,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:37,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:38,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:38,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648171180] [2022-11-18 19:53:38,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648171180] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:38,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:38,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521525798] [2022-11-18 19:53:38,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:38,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:38,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:38,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:38,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:38,132 INFO L87 Difference]: Start difference. First operand 151 states and 411 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:39,312 INFO L93 Difference]: Finished difference Result 216 states and 567 transitions. [2022-11-18 19:53:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:39,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:39,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:39,315 INFO L225 Difference]: With dead ends: 216 [2022-11-18 19:53:39,315 INFO L226 Difference]: Without dead ends: 216 [2022-11-18 19:53:39,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:53:39,315 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 66 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 156 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:39,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 9 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 156 Unchecked, 0.9s Time] [2022-11-18 19:53:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-18 19:53:39,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 155. [2022-11-18 19:53:39,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 2.7908496732026142) internal successors, (427), 154 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 427 transitions. [2022-11-18 19:53:39,319 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 427 transitions. Word has length 17 [2022-11-18 19:53:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:39,319 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 427 transitions. [2022-11-18 19:53:39,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 427 transitions. [2022-11-18 19:53:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:39,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:39,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:39,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:39,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:39,521 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:39,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash 858993848, now seen corresponding path program 6 times [2022-11-18 19:53:39,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:39,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453428440] [2022-11-18 19:53:39,521 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:53:39,522 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 [2022-11-18 19:53:39,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:39,523 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:39,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:39,816 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-11-18 19:53:39,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:39,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:39,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:39,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:39,970 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 64 treesize of output 62 [2022-11-18 19:53:39,974 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 62 treesize of output 60 [2022-11-18 19:53:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:40,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453428440] [2022-11-18 19:53:40,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453428440] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:40,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:40,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670259742] [2022-11-18 19:53:40,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:40,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:40,446 INFO L87 Difference]: Start difference. First operand 155 states and 427 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:41,293 INFO L93 Difference]: Finished difference Result 233 states and 613 transitions. [2022-11-18 19:53:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:53:41,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:41,295 INFO L225 Difference]: With dead ends: 233 [2022-11-18 19:53:41,295 INFO L226 Difference]: Without dead ends: 233 [2022-11-18 19:53:41,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:41,295 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:41,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 57 Unchecked, 0.5s Time] [2022-11-18 19:53:41,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-11-18 19:53:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 157. [2022-11-18 19:53:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 2.8) internal successors, (434), 156 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 434 transitions. [2022-11-18 19:53:41,298 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 434 transitions. Word has length 17 [2022-11-18 19:53:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:41,298 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 434 transitions. [2022-11-18 19:53:41,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:41,299 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 434 transitions. [2022-11-18 19:53:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:41,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:41,299 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:41,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:41,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:41,503 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -705062176, now seen corresponding path program 13 times [2022-11-18 19:53:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792934729] [2022-11-18 19:53:41,504 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:53:41,504 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 [2022-11-18 19:53:41,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:41,505 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:41,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:41,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:41,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:42,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:42,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792934729] [2022-11-18 19:53:42,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792934729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:42,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:42,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999652868] [2022-11-18 19:53:42,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:42,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:42,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:42,038 INFO L87 Difference]: Start difference. First operand 157 states and 434 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:42,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:42,934 INFO L93 Difference]: Finished difference Result 197 states and 518 transitions. [2022-11-18 19:53:42,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:42,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:42,936 INFO L225 Difference]: With dead ends: 197 [2022-11-18 19:53:42,936 INFO L226 Difference]: Without dead ends: 197 [2022-11-18 19:53:42,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:53:42,937 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 62 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:42,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 11 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 24 Unchecked, 0.8s Time] [2022-11-18 19:53:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-18 19:53:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2022-11-18 19:53:42,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 171 states have (on average 2.7017543859649122) internal successors, (462), 172 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 462 transitions. [2022-11-18 19:53:42,940 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 462 transitions. Word has length 17 [2022-11-18 19:53:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:42,941 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 462 transitions. [2022-11-18 19:53:42,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 462 transitions. [2022-11-18 19:53:42,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:42,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:42,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:42,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:53:43,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:43,151 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:43,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:43,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1729903714, now seen corresponding path program 7 times [2022-11-18 19:53:43,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:43,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069799058] [2022-11-18 19:53:43,152 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:53:43,152 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 [2022-11-18 19:53:43,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:43,153 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:43,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:43,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:43,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:43,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:43,497 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 64 treesize of output 62 [2022-11-18 19:53:43,506 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 62 treesize of output 60 [2022-11-18 19:53:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:43,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:43,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069799058] [2022-11-18 19:53:43,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069799058] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:43,967 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:43,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827442953] [2022-11-18 19:53:43,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:43,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:43,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:43,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:43,969 INFO L87 Difference]: Start difference. First operand 173 states and 462 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:44,737 INFO L93 Difference]: Finished difference Result 223 states and 589 transitions. [2022-11-18 19:53:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:44,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:44,739 INFO L225 Difference]: With dead ends: 223 [2022-11-18 19:53:44,739 INFO L226 Difference]: Without dead ends: 223 [2022-11-18 19:53:44,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:53:44,740 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 32 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:44,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 124 Unchecked, 0.5s Time] [2022-11-18 19:53:44,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-18 19:53:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 182. [2022-11-18 19:53:44,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 2.7888888888888888) internal successors, (502), 181 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 502 transitions. [2022-11-18 19:53:44,745 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 502 transitions. Word has length 17 [2022-11-18 19:53:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:44,746 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 502 transitions. [2022-11-18 19:53:44,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:44,746 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 502 transitions. [2022-11-18 19:53:44,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:44,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:44,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:44,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:44,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:44,951 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:44,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:44,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1744769864, now seen corresponding path program 8 times [2022-11-18 19:53:44,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:44,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304023045] [2022-11-18 19:53:44,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:44,952 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 [2022-11-18 19:53:44,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:44,953 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:44,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:45,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:45,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:45,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:45,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:45,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:45,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:45,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304023045] [2022-11-18 19:53:45,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304023045] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:45,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:45,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:45,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914130446] [2022-11-18 19:53:45,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:45,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:45,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:45,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:45,777 INFO L87 Difference]: Start difference. First operand 182 states and 502 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:47,089 INFO L93 Difference]: Finished difference Result 238 states and 639 transitions. [2022-11-18 19:53:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:53:47,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:47,091 INFO L225 Difference]: With dead ends: 238 [2022-11-18 19:53:47,091 INFO L226 Difference]: Without dead ends: 238 [2022-11-18 19:53:47,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:47,091 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 81 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:47,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 9 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 193 Invalid, 0 Unknown, 188 Unchecked, 0.8s Time] [2022-11-18 19:53:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-18 19:53:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 183. [2022-11-18 19:53:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 2.8121546961325965) internal successors, (509), 182 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 509 transitions. [2022-11-18 19:53:47,095 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 509 transitions. Word has length 17 [2022-11-18 19:53:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:47,095 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 509 transitions. [2022-11-18 19:53:47,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 509 transitions. [2022-11-18 19:53:47,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:47,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:47,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:47,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:47,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:47,305 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:47,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:47,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1014289800, now seen corresponding path program 9 times [2022-11-18 19:53:47,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:47,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339138710] [2022-11-18 19:53:47,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:53:47,306 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 [2022-11-18 19:53:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:47,307 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:47,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:47,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 19:53:47,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:47,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:47,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:47,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:47,839 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 64 treesize of output 62 [2022-11-18 19:53:47,844 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 62 treesize of output 60 [2022-11-18 19:53:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:48,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339138710] [2022-11-18 19:53:48,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339138710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:48,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:48,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:48,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333479718] [2022-11-18 19:53:48,276 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:48,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:48,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:48,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:48,277 INFO L87 Difference]: Start difference. First operand 183 states and 509 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:49,036 INFO L93 Difference]: Finished difference Result 244 states and 649 transitions. [2022-11-18 19:53:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:49,037 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:49,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:49,039 INFO L225 Difference]: With dead ends: 244 [2022-11-18 19:53:49,039 INFO L226 Difference]: Without dead ends: 244 [2022-11-18 19:53:49,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:49,040 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:49,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 44 Unchecked, 0.8s Time] [2022-11-18 19:53:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-18 19:53:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 180. [2022-11-18 19:53:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.792134831460674) internal successors, (497), 179 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 497 transitions. [2022-11-18 19:53:49,045 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 497 transitions. Word has length 17 [2022-11-18 19:53:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:49,045 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 497 transitions. [2022-11-18 19:53:49,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 497 transitions. [2022-11-18 19:53:49,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:49,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:49,047 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:49,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:49,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:49,261 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2131025278, now seen corresponding path program 12 times [2022-11-18 19:53:49,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019712290] [2022-11-18 19:53:49,262 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:53:49,262 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 [2022-11-18 19:53:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:49,263 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:49,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:49,508 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:53:49,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:49,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:49,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:49,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:50,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:50,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019712290] [2022-11-18 19:53:50,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019712290] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:50,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:50,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165229349] [2022-11-18 19:53:50,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:50,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:50,082 INFO L87 Difference]: Start difference. First operand 180 states and 497 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:50,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:50,938 INFO L93 Difference]: Finished difference Result 244 states and 622 transitions. [2022-11-18 19:53:50,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:50,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:50,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:50,942 INFO L225 Difference]: With dead ends: 244 [2022-11-18 19:53:50,942 INFO L226 Difference]: Without dead ends: 244 [2022-11-18 19:53:50,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:53:50,942 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 55 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 164 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:50,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 6 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 154 Invalid, 0 Unknown, 164 Unchecked, 0.8s Time] [2022-11-18 19:53:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-18 19:53:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 180. [2022-11-18 19:53:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.803370786516854) internal successors, (499), 179 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 499 transitions. [2022-11-18 19:53:50,946 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 499 transitions. Word has length 17 [2022-11-18 19:53:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 499 transitions. [2022-11-18 19:53:50,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 499 transitions. [2022-11-18 19:53:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:50,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:50,948 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:50,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:51,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:51,162 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:51,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1273340040, now seen corresponding path program 13 times [2022-11-18 19:53:51,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:51,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359265610] [2022-11-18 19:53:51,163 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:53:51,163 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 [2022-11-18 19:53:51,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:51,164 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:51,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:51,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:51,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:51,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:51,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:51,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359265610] [2022-11-18 19:53:51,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359265610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:51,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:51,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:51,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802345466] [2022-11-18 19:53:51,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:51,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:51,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:51,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:51,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:51,890 INFO L87 Difference]: Start difference. First operand 180 states and 499 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:53,013 INFO L93 Difference]: Finished difference Result 244 states and 621 transitions. [2022-11-18 19:53:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:53:53,015 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:53,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:53,017 INFO L225 Difference]: With dead ends: 244 [2022-11-18 19:53:53,017 INFO L226 Difference]: Without dead ends: 244 [2022-11-18 19:53:53,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:53:53,018 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 49 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 140 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:53,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 6 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 241 Invalid, 0 Unknown, 140 Unchecked, 1.0s Time] [2022-11-18 19:53:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-18 19:53:53,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 178. [2022-11-18 19:53:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 176 states have (on average 2.8011363636363638) internal successors, (493), 177 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:53,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 493 transitions. [2022-11-18 19:53:53,022 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 493 transitions. Word has length 17 [2022-11-18 19:53:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:53,022 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 493 transitions. [2022-11-18 19:53:53,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 493 transitions. [2022-11-18 19:53:53,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:53,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:53,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:53,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:53:53,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:53,235 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:53,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1438498010, now seen corresponding path program 10 times [2022-11-18 19:53:53,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:53,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326511789] [2022-11-18 19:53:53,236 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:53:53,236 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 [2022-11-18 19:53:53,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:53,238 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:53,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:53,469 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:53:53,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:53,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:53,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:53,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:53,651 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 64 treesize of output 62 [2022-11-18 19:53:53,656 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 62 treesize of output 60 [2022-11-18 19:53:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:54,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:54,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326511789] [2022-11-18 19:53:54,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326511789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:54,118 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:54,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801290663] [2022-11-18 19:53:54,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:54,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:54,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:54,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:54,120 INFO L87 Difference]: Start difference. First operand 178 states and 493 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:55,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:55,228 INFO L93 Difference]: Finished difference Result 311 states and 760 transitions. [2022-11-18 19:53:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:55,229 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:55,231 INFO L225 Difference]: With dead ends: 311 [2022-11-18 19:53:55,231 INFO L226 Difference]: Without dead ends: 311 [2022-11-18 19:53:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:53:55,231 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 85 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 198 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:55,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 9 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 198 Unchecked, 0.9s Time] [2022-11-18 19:53:55,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-11-18 19:53:55,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 183. [2022-11-18 19:53:55,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 2.850828729281768) internal successors, (516), 182 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 516 transitions. [2022-11-18 19:53:55,237 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 516 transitions. Word has length 17 [2022-11-18 19:53:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:55,238 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 516 transitions. [2022-11-18 19:53:55,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:55,238 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 516 transitions. [2022-11-18 19:53:55,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:55,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:55,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:55,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:55,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:55,453 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:55,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1423631860, now seen corresponding path program 11 times [2022-11-18 19:53:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:55,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280038775] [2022-11-18 19:53:55,454 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:53:55,454 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 [2022-11-18 19:53:55,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:55,455 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:55,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:55,706 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:55,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:55,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:55,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:55,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:56,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:56,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280038775] [2022-11-18 19:53:56,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280038775] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:56,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:56,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:56,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933464261] [2022-11-18 19:53:56,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:56,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:56,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:56,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:56,272 INFO L87 Difference]: Start difference. First operand 183 states and 516 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:57,802 INFO L93 Difference]: Finished difference Result 295 states and 747 transitions. [2022-11-18 19:53:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:53:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:57,804 INFO L225 Difference]: With dead ends: 295 [2022-11-18 19:53:57,804 INFO L226 Difference]: Without dead ends: 295 [2022-11-18 19:53:57,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:53:57,805 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 81 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:57,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 7 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 270 Unchecked, 1.0s Time] [2022-11-18 19:53:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-11-18 19:53:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 180. [2022-11-18 19:53:57,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.8258426966292136) internal successors, (503), 179 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 503 transitions. [2022-11-18 19:53:57,808 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 503 transitions. Word has length 17 [2022-11-18 19:53:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:57,809 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 503 transitions. [2022-11-18 19:53:57,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 503 transitions. [2022-11-18 19:53:57,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:57,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:57,810 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:57,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:53:58,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:53:58,024 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:53:58,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash 144832244, now seen corresponding path program 14 times [2022-11-18 19:53:58,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:53:58,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674235664] [2022-11-18 19:53:58,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:53:58,025 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 [2022-11-18 19:53:58,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:53:58,026 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:53:58,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:53:58,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:53:58,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:53:58,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:53:58,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:53:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:58,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:53:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:53:58,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:53:58,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674235664] [2022-11-18 19:53:58,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674235664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:53:58,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:53:58,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:53:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225004691] [2022-11-18 19:53:58,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:53:58,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:53:58,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:53:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:53:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:53:58,647 INFO L87 Difference]: Start difference. First operand 180 states and 503 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:59,866 INFO L93 Difference]: Finished difference Result 243 states and 624 transitions. [2022-11-18 19:53:59,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:53:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:59,869 INFO L225 Difference]: With dead ends: 243 [2022-11-18 19:53:59,869 INFO L226 Difference]: Without dead ends: 243 [2022-11-18 19:53:59,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:53:59,869 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 76 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:59,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 8 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 222 Invalid, 0 Unknown, 41 Unchecked, 1.0s Time] [2022-11-18 19:53:59,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-18 19:53:59,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 180. [2022-11-18 19:53:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 2.8258426966292136) internal successors, (503), 179 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:59,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 503 transitions. [2022-11-18 19:53:59,883 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 503 transitions. Word has length 17 [2022-11-18 19:53:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:59,883 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 503 transitions. [2022-11-18 19:53:59,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:53:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 503 transitions. [2022-11-18 19:53:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:53:59,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:59,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:59,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:00,100 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:00,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1715169162, now seen corresponding path program 12 times [2022-11-18 19:54:00,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:00,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658514698] [2022-11-18 19:54:00,101 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:54:00,101 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 [2022-11-18 19:54:00,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:00,102 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:00,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:00,403 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:54:00,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:00,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:00,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:00,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:00,572 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 64 treesize of output 62 [2022-11-18 19:54:00,577 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 62 treesize of output 60 [2022-11-18 19:54:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:01,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:01,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658514698] [2022-11-18 19:54:01,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658514698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:01,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:01,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:01,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845081822] [2022-11-18 19:54:01,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:01,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:01,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:01,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:01,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:01,027 INFO L87 Difference]: Start difference. First operand 180 states and 503 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:01,806 INFO L93 Difference]: Finished difference Result 257 states and 715 transitions. [2022-11-18 19:54:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:54:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:01,809 INFO L225 Difference]: With dead ends: 257 [2022-11-18 19:54:01,809 INFO L226 Difference]: Without dead ends: 257 [2022-11-18 19:54:01,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:54:01,810 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:01,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 97 Unchecked, 0.7s Time] [2022-11-18 19:54:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-18 19:54:01,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 195. [2022-11-18 19:54:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 2.9326424870466323) internal successors, (566), 194 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:01,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 566 transitions. [2022-11-18 19:54:01,814 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 566 transitions. Word has length 17 [2022-11-18 19:54:01,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:01,815 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 566 transitions. [2022-11-18 19:54:01,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:01,815 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 566 transitions. [2022-11-18 19:54:01,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:01,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:01,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:01,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:02,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:02,030 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:02,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:02,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2019931092, now seen corresponding path program 13 times [2022-11-18 19:54:02,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:02,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718559497] [2022-11-18 19:54:02,031 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 19:54:02,031 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 [2022-11-18 19:54:02,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:02,032 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:02,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:02,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:02,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:02,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:02,388 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 64 treesize of output 62 [2022-11-18 19:54:02,399 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 62 treesize of output 60 [2022-11-18 19:54:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:02,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:02,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718559497] [2022-11-18 19:54:02,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718559497] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:02,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:02,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109748051] [2022-11-18 19:54:02,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:02,963 INFO L87 Difference]: Start difference. First operand 195 states and 566 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:03,781 INFO L93 Difference]: Finished difference Result 277 states and 750 transitions. [2022-11-18 19:54:03,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:54:03,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:03,784 INFO L225 Difference]: With dead ends: 277 [2022-11-18 19:54:03,784 INFO L226 Difference]: Without dead ends: 277 [2022-11-18 19:54:03,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:03,785 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:03,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 5 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 82 Unchecked, 0.8s Time] [2022-11-18 19:54:03,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-18 19:54:03,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 196. [2022-11-18 19:54:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 194 states have (on average 2.943298969072165) internal successors, (571), 195 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 571 transitions. [2022-11-18 19:54:03,789 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 571 transitions. Word has length 17 [2022-11-18 19:54:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:03,789 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 571 transitions. [2022-11-18 19:54:03,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 571 transitions. [2022-11-18 19:54:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:03,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:03,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:03,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:03,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:03,990 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:03,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1700303012, now seen corresponding path program 14 times [2022-11-18 19:54:03,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:03,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840522444] [2022-11-18 19:54:03,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:54:03,991 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 [2022-11-18 19:54:03,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:03,992 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:04,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:04,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:54:04,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:04,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:04,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:04,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:04,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:04,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840522444] [2022-11-18 19:54:04,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840522444] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:04,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:04,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:04,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804957735] [2022-11-18 19:54:04,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:04,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:04,870 INFO L87 Difference]: Start difference. First operand 196 states and 571 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:05,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:05,921 INFO L93 Difference]: Finished difference Result 257 states and 729 transitions. [2022-11-18 19:54:05,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:54:05,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:05,923 INFO L225 Difference]: With dead ends: 257 [2022-11-18 19:54:05,923 INFO L226 Difference]: Without dead ends: 257 [2022-11-18 19:54:05,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:54:05,924 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:05,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 56 Unchecked, 0.7s Time] [2022-11-18 19:54:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-18 19:54:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 207. [2022-11-18 19:54:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 205 states have (on average 2.951219512195122) internal successors, (605), 206 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 605 transitions. [2022-11-18 19:54:05,929 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 605 transitions. Word has length 17 [2022-11-18 19:54:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:05,929 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 605 transitions. [2022-11-18 19:54:05,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 605 transitions. [2022-11-18 19:54:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:05,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:05,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:05,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:54:06,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:06,139 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1447676506, now seen corresponding path program 15 times [2022-11-18 19:54:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:06,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897301513] [2022-11-18 19:54:06,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:54:06,140 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 [2022-11-18 19:54:06,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:06,142 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:06,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:06,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 19:54:06,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:06,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:06,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:07,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:07,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897301513] [2022-11-18 19:54:07,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897301513] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:07,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:07,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482057616] [2022-11-18 19:54:07,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:07,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:07,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:07,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:07,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:07,206 INFO L87 Difference]: Start difference. First operand 207 states and 605 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:08,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:08,657 INFO L93 Difference]: Finished difference Result 314 states and 838 transitions. [2022-11-18 19:54:08,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:54:08,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:08,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:08,660 INFO L225 Difference]: With dead ends: 314 [2022-11-18 19:54:08,660 INFO L226 Difference]: Without dead ends: 314 [2022-11-18 19:54:08,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-11-18 19:54:08,661 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 149 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:08,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 7 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 228 Invalid, 0 Unknown, 149 Unchecked, 1.0s Time] [2022-11-18 19:54:08,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-18 19:54:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 199. [2022-11-18 19:54:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 2.969543147208122) internal successors, (585), 198 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 585 transitions. [2022-11-18 19:54:08,667 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 585 transitions. Word has length 17 [2022-11-18 19:54:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:08,667 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 585 transitions. [2022-11-18 19:54:08,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:08,668 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 585 transitions. [2022-11-18 19:54:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:08,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:08,669 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:08,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:54:08,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:08,875 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash -689204916, now seen corresponding path program 14 times [2022-11-18 19:54:08,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:08,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855905611] [2022-11-18 19:54:08,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:54:08,876 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 [2022-11-18 19:54:08,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:08,878 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:08,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:09,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:54:09,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:09,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:54:09,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:09,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:09,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:09,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855905611] [2022-11-18 19:54:09,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855905611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:09,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:09,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567383187] [2022-11-18 19:54:09,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:09,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:09,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:09,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:09,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:09,593 INFO L87 Difference]: Start difference. First operand 199 states and 585 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:12,454 INFO L93 Difference]: Finished difference Result 426 states and 1047 transitions. [2022-11-18 19:54:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-18 19:54:12,455 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:12,458 INFO L225 Difference]: With dead ends: 426 [2022-11-18 19:54:12,458 INFO L226 Difference]: Without dead ends: 426 [2022-11-18 19:54:12,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:54:12,459 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 132 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:12,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 17 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 335 Invalid, 0 Unknown, 56 Unchecked, 1.7s Time] [2022-11-18 19:54:12,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-11-18 19:54:12,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 205. [2022-11-18 19:54:12,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 203 states have (on average 3.019704433497537) internal successors, (613), 204 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 613 transitions. [2022-11-18 19:54:12,467 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 613 transitions. Word has length 17 [2022-11-18 19:54:12,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:12,467 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 613 transitions. [2022-11-18 19:54:12,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 613 transitions. [2022-11-18 19:54:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:12,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:12,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:12,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 19:54:12,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:12,683 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 318597898, now seen corresponding path program 16 times [2022-11-18 19:54:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:12,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664835809] [2022-11-18 19:54:12,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:54:12,685 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 [2022-11-18 19:54:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:12,685 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:12,946 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:54:12,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:12,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:12,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:13,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:13,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:13,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664835809] [2022-11-18 19:54:13,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664835809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:13,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:13,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:13,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945014557] [2022-11-18 19:54:13,343 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:13,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:13,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:13,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:13,344 INFO L87 Difference]: Start difference. First operand 205 states and 613 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:14,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:14,409 INFO L93 Difference]: Finished difference Result 382 states and 1060 transitions. [2022-11-18 19:54:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:54:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:14,416 INFO L225 Difference]: With dead ends: 382 [2022-11-18 19:54:14,416 INFO L226 Difference]: Without dead ends: 382 [2022-11-18 19:54:14,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:54:14,417 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 47 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:14,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 11 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 233 Unchecked, 0.8s Time] [2022-11-18 19:54:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-11-18 19:54:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 217. [2022-11-18 19:54:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 3.0697674418604652) internal successors, (660), 216 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:14,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 660 transitions. [2022-11-18 19:54:14,422 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 660 transitions. Word has length 17 [2022-11-18 19:54:14,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:14,423 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 660 transitions. [2022-11-18 19:54:14,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 660 transitions. [2022-11-18 19:54:14,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:14,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:14,424 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:14,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:14,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:14,635 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash 993560776, now seen corresponding path program 15 times [2022-11-18 19:54:14,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:14,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186789209] [2022-11-18 19:54:14,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:54:14,636 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 [2022-11-18 19:54:14,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:14,637 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:14,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:14,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:54:14,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:14,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:54:14,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:15,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:15,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:15,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186789209] [2022-11-18 19:54:15,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186789209] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:15,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:15,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:15,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118111298] [2022-11-18 19:54:15,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:15,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:15,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:15,294 INFO L87 Difference]: Start difference. First operand 217 states and 660 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:17,502 INFO L93 Difference]: Finished difference Result 458 states and 1202 transitions. [2022-11-18 19:54:17,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:54:17,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:17,504 INFO L225 Difference]: With dead ends: 458 [2022-11-18 19:54:17,504 INFO L226 Difference]: Without dead ends: 458 [2022-11-18 19:54:17,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:54:17,505 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 147 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:17,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 19 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 344 Invalid, 0 Unknown, 55 Unchecked, 1.6s Time] [2022-11-18 19:54:17,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-18 19:54:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 252. [2022-11-18 19:54:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 250 states have (on average 3.232) internal successors, (808), 251 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 808 transitions. [2022-11-18 19:54:17,513 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 808 transitions. Word has length 17 [2022-11-18 19:54:17,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:17,513 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 808 transitions. [2022-11-18 19:54:17,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:17,513 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 808 transitions. [2022-11-18 19:54:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:17,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:17,515 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:17,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:17,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:17,729 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:17,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1320322888, now seen corresponding path program 15 times [2022-11-18 19:54:17,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:17,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314516496] [2022-11-18 19:54:17,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:54:17,730 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 [2022-11-18 19:54:17,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:17,731 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:17,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:54:17,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:17,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:18,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:18,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:18,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:18,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314516496] [2022-11-18 19:54:18,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314516496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:18,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:18,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:18,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067976902] [2022-11-18 19:54:18,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:18,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:18,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:18,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:18,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:18,287 INFO L87 Difference]: Start difference. First operand 252 states and 808 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:19,505 INFO L93 Difference]: Finished difference Result 312 states and 905 transitions. [2022-11-18 19:54:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:54:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:19,508 INFO L225 Difference]: With dead ends: 312 [2022-11-18 19:54:19,508 INFO L226 Difference]: Without dead ends: 312 [2022-11-18 19:54:19,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=251, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:54:19,509 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 67 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:19,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 16 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 0 Unknown, 17 Unchecked, 1.0s Time] [2022-11-18 19:54:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-18 19:54:19,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 258. [2022-11-18 19:54:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 256 states have (on average 3.19140625) internal successors, (817), 257 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 817 transitions. [2022-11-18 19:54:19,515 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 817 transitions. Word has length 17 [2022-11-18 19:54:19,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:19,515 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 817 transitions. [2022-11-18 19:54:19,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 817 transitions. [2022-11-18 19:54:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:19,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:19,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:19,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:19,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:19,726 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:19,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:19,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1034572924, now seen corresponding path program 17 times [2022-11-18 19:54:19,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:19,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950501722] [2022-11-18 19:54:19,727 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 19:54:19,727 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 [2022-11-18 19:54:19,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:19,728 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:19,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:20,001 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:54:20,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:20,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:20,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:20,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:20,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:20,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950501722] [2022-11-18 19:54:20,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950501722] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:20,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:20,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:20,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025476413] [2022-11-18 19:54:20,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:20,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:20,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:20,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:20,438 INFO L87 Difference]: Start difference. First operand 258 states and 817 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:21,889 INFO L93 Difference]: Finished difference Result 419 states and 1165 transitions. [2022-11-18 19:54:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:54:21,891 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:21,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:21,893 INFO L225 Difference]: With dead ends: 419 [2022-11-18 19:54:21,893 INFO L226 Difference]: Without dead ends: 419 [2022-11-18 19:54:21,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:54:21,894 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 67 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:21,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 13 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 204 Unchecked, 1.1s Time] [2022-11-18 19:54:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-11-18 19:54:21,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 256. [2022-11-18 19:54:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 254 states have (on average 3.1929133858267718) internal successors, (811), 255 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 811 transitions. [2022-11-18 19:54:21,902 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 811 transitions. Word has length 17 [2022-11-18 19:54:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:21,916 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 811 transitions. [2022-11-18 19:54:21,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 811 transitions. [2022-11-18 19:54:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 19:54:21,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:21,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:21,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:22,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:22,131 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:22,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1236199882, now seen corresponding path program 18 times [2022-11-18 19:54:22,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:22,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143338272] [2022-11-18 19:54:22,132 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 19:54:22,132 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 [2022-11-18 19:54:22,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:22,134 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:22,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:22,453 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-11-18 19:54:22,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:22,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 19:54:22,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:22,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:54:22,615 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 64 treesize of output 62 [2022-11-18 19:54:22,620 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 62 treesize of output 60 [2022-11-18 19:54:23,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 19:54:23,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:54:23,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143338272] [2022-11-18 19:54:23,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143338272] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:54:23,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:54:23,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 19:54:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727805300] [2022-11-18 19:54:23,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:54:23,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:54:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:54:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:54:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:54:23,114 INFO L87 Difference]: Start difference. First operand 256 states and 811 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:24,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:24,143 INFO L93 Difference]: Finished difference Result 343 states and 985 transitions. [2022-11-18 19:54:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:54:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 17 [2022-11-18 19:54:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:24,146 INFO L225 Difference]: With dead ends: 343 [2022-11-18 19:54:24,146 INFO L226 Difference]: Without dead ends: 343 [2022-11-18 19:54:24,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:54:24,147 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 30 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:24,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 98 Unchecked, 0.9s Time] [2022-11-18 19:54:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-18 19:54:24,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 242. [2022-11-18 19:54:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 3.1333333333333333) internal successors, (752), 241 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 752 transitions. [2022-11-18 19:54:24,154 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 752 transitions. Word has length 17 [2022-11-18 19:54:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:24,154 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 752 transitions. [2022-11-18 19:54:24,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 752 transitions. [2022-11-18 19:54:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 19:54:24,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:24,155 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:24,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-18 19:54:24,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:54:24,369 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 43 more)] === [2022-11-18 19:54:24,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:24,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1781768359, now seen corresponding path program 16 times [2022-11-18 19:54:24,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:54:24,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602510967] [2022-11-18 19:54:24,370 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 19:54:24,370 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 [2022-11-18 19:54:24,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:54:24,371 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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) [2022-11-18 19:54:24,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcd11b31-3ef1-429d-8cf8-dfe8e1a176f1/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 19:54:24,648 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 19:54:24,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:54:24,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 19:54:24,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:54:24,918 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 413 treesize of output 407 [2022-11-18 19:54:24,927 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 407 treesize of output 401 [2022-11-18 19:55:32,620 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 59 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:55:37,363 INFO L321 Elim1Store]: treesize reduction 1072, result has 3.3 percent of original size [2022-11-18 19:55:37,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 24 new quantified variables, introduced 120 case distinctions, treesize of input 763 treesize of output 183 [2022-11-18 19:55:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:39,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:56:22,124 WARN L233 SmtUtils]: Spent 27.69s on a formula simplification. DAG size of input: 1028 DAG size of output: 284 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 19:56:22,126 INFO L321 Elim1Store]: treesize reduction 2424, result has 23.1 percent of original size [2022-11-18 19:56:22,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 32 new quantified variables, introduced 276 case distinctions, treesize of input 1439 treesize of output 1255 [2022-11-18 19:56:22,342 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 464 treesize of output 458 [2022-11-18 19:56:22,461 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 458 treesize of output 452