./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- 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-b5237d8 [2022-11-21 09:05:56,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:05:56,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:05:56,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:05:56,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:05:56,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:05:56,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:05:56,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:05:56,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:05:56,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:05:56,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:05:56,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:05:56,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:05:56,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:05:56,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:05:56,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:05:56,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:05:56,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:05:56,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:05:56,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:05:56,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:05:56,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:05:56,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:05:56,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:05:56,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:05:56,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:05:56,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:05:56,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:05:56,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:05:56,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:05:56,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:05:56,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:05:56,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:05:56,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:05:56,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:05:56,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:05:56,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:05:56,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:05:56,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:05:56,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:05:56,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:05:56,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2022-11-21 09:05:56,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:05:56,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:05:56,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:05:56,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:05:56,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:05:56,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:05:56,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:05:56,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:05:56,705 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:05:56,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:05:56,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:05:56,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:05:56,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:05:56,707 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 09:05:56,708 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 09:05:56,708 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 09:05:56,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:05:56,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:05:56,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:05:56,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:05:56,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:05:56,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:05:56,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:05:56,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:05:56,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:05:56,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:05:56,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:05:56,711 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_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2022-11-21 09:05:57,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:05:57,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:05:57,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:05:57,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:05:57,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:05:57,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-11-21 09:06:00,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:06:00,720 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:06:00,721 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-11-21 09:06:00,754 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/680f51c35/02c7a5ed9ac948f7b599b59be55e6d37/FLAG82eb97d3a [2022-11-21 09:06:00,777 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/680f51c35/02c7a5ed9ac948f7b599b59be55e6d37 [2022-11-21 09:06:00,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:06:00,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:06:00,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:00,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:06:00,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:06:00,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:00" (1/1) ... [2022-11-21 09:06:00,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fed4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:00, skipping insertion in model container [2022-11-21 09:06:00,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:00" (1/1) ... [2022-11-21 09:06:00,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:06:00,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:06:01,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:01,870 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) [2022-11-21 09:06:01,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15672747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:01, skipping insertion in model container [2022-11-21 09:06:01,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:01,872 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-21 09:06:01,874 INFO L158 Benchmark]: Toolchain (without parser) took 1088.88ms. Allocated memory is still 192.9MB. Free memory was 159.8MB in the beginning and 149.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 09:06:01,875 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:06:01,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1082.71ms. Allocated memory is still 192.9MB. Free memory was 159.8MB in the beginning and 149.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 09:06:01,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1082.71ms. Allocated memory is still 192.9MB. Free memory was 159.8MB in the beginning and 149.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1774]: 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_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/hostid.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a --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 64bit --witnessprinter.graph.data.programhash de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- 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-b5237d8 [2022-11-21 09:06:04,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:06:04,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:06:04,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:06:04,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:06:04,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:06:04,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:06:04,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:06:04,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:06:04,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:06:04,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:06:04,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:06:04,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:06:04,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:06:04,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:06:04,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:06:04,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:06:04,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:06:04,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:06:04,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:06:04,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:06:04,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:06:04,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:06:04,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:06:04,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:06:04,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:06:04,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:06:04,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:06:04,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:06:04,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:06:04,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:06:04,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:06:04,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:06:04,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:06:04,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:06:04,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:06:04,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:06:04,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:06:04,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:06:04,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:06:04,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:06:04,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2022-11-21 09:06:04,415 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:06:04,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:06:04,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:06:04,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:06:04,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:06:04,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:06:04,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:06:04,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:06:04,419 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:06:04,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:06:04,419 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:06:04,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:06:04,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:06:04,420 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 09:06:04,420 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 09:06:04,421 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 09:06:04,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:06:04,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:06:04,421 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:06:04,422 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:06:04,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:06:04,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:06:04,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:06:04,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:06:04,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:04,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:06:04,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:06:04,424 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:06:04,424 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:06:04,424 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:06:04,424 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_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2022-11-21 09:06:04,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:06:04,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:06:04,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:06:04,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:06:04,807 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:06:04,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-11-21 09:06:07,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:06:08,492 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:06:08,492 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-11-21 09:06:08,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/c0cdab9c8/cd0de069d74f4c8ab2be33479d666177/FLAG4f5ac8397 [2022-11-21 09:06:08,552 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/data/c0cdab9c8/cd0de069d74f4c8ab2be33479d666177 [2022-11-21 09:06:08,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:06:08,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:06:08,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:08,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:06:08,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:06:08,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:08" (1/1) ... [2022-11-21 09:06:08,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:08, skipping insertion in model container [2022-11-21 09:06:08,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:06:08" (1/1) ... [2022-11-21 09:06:08,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:06:08,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:06:09,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:09,772 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 09:06:09,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:06:09,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:09,868 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:06:09,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:06:10,117 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:06:10,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10 WrapperNode [2022-11-21 09:06:10,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:06:10,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:10,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:06:10,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:06:10,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,192 INFO L138 Inliner]: procedures = 529, calls = 61, calls flagged for inlining = 7, calls inlined = 6, statements flattened = 130 [2022-11-21 09:06:10,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:06:10,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:06:10,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:06:10,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:06:10,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:06:10,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:06:10,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:06:10,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:06:10,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (1/1) ... [2022-11-21 09:06:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:06:10,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:06:10,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:06:10,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:06:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:06:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 09:06:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:06:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-11-21 09:06:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:06:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:06:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:06:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:06:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 09:06:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 09:06:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:06:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 09:06:10,789 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:06:10,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:06:11,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:06:11,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:06:11,476 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 09:06:11,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:11 BoogieIcfgContainer [2022-11-21 09:06:11,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:06:11,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:06:11,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:06:11,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:06:11,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:06:08" (1/3) ... [2022-11-21 09:06:11,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9d0278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:11, skipping insertion in model container [2022-11-21 09:06:11,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:06:10" (2/3) ... [2022-11-21 09:06:11,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9d0278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:06:11, skipping insertion in model container [2022-11-21 09:06:11,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:06:11" (3/3) ... [2022-11-21 09:06:11,488 INFO L112 eAbstractionObserver]: Analyzing ICFG hostid.i [2022-11-21 09:06:11,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:06:11,510 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-11-21 09:06:11,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:06:11,581 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;@5624cf46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:06:11,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-21 09:06:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 92 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:11,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 09:06:11,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:11,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 09:06:11,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:11,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-11-21 09:06:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:11,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648671699] [2022-11-21 09:06:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:11,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:11,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:11,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:11,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:11,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 09:06:11,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:11,971 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 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-21 09:06:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:11,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:11,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:11,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648671699] [2022-11-21 09:06:11,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648671699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:11,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:11,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:11,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851398640] [2022-11-21 09:06:11,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:12,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:12,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:12,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:12,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:12,057 INFO L87 Difference]: Start difference. First operand has 95 states, 55 states have (on average 1.8545454545454545) internal successors, (102), 92 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-21 09:06:12,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:12,397 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2022-11-21 09:06:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:12,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2022-11-21 09:06:12,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:12,412 INFO L225 Difference]: With dead ends: 109 [2022-11-21 09:06:12,412 INFO L226 Difference]: Without dead ends: 107 [2022-11-21 09:06:12,415 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 [2022-11-21 09:06:12,426 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 70 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:12,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 09:06:12,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-21 09:06:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 91. [2022-11-21 09:06:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 88 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2022-11-21 09:06:12,509 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 3 [2022-11-21 09:06:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:12,509 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2022-11-21 09:06:12,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-21 09:06:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2022-11-21 09:06:12,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 09:06:12,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:12,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 09:06:12,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:12,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:12,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:12,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-21 09:06:12,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:12,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215030866] [2022-11-21 09:06:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:12,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:12,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:12,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:12,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:12,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 09:06:12,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:12,904 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:06:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:12,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:12,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:12,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215030866] [2022-11-21 09:06:12,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215030866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:12,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:12,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633860279] [2022-11-21 09:06:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:12,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:12,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:12,924 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-21 09:06:13,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:13,410 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2022-11-21 09:06:13,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:13,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2022-11-21 09:06:13,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:13,412 INFO L225 Difference]: With dead ends: 90 [2022-11-21 09:06:13,412 INFO L226 Difference]: Without dead ends: 90 [2022-11-21 09:06:13,412 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 [2022-11-21 09:06:13,413 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 9 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:13,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 142 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 09:06:13,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-21 09:06:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-21 09:06:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.7037037037037037) internal successors, (92), 87 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2022-11-21 09:06:13,422 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 3 [2022-11-21 09:06:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:13,422 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2022-11-21 09:06:13,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2022-11-21 09:06:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2022-11-21 09:06:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 09:06:13,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:13,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 09:06:13,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:13,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2022-11-21 09:06:13,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:13,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444547353] [2022-11-21 09:06:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:13,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:13,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:13,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:13,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:13,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:06:13,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:13,875 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:06:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:13,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:13,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:13,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444547353] [2022-11-21 09:06:13,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444547353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:13,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:13,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:06:13,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942607070] [2022-11-21 09:06:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:13,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:06:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:06:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:06:13,980 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:14,444 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2022-11-21 09:06:14,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:06:14,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 09:06:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:14,446 INFO L225 Difference]: With dead ends: 94 [2022-11-21 09:06:14,446 INFO L226 Difference]: Without dead ends: 94 [2022-11-21 09:06:14,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:06:14,447 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 14 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:14,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 141 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 09:06:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-21 09:06:14,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2022-11-21 09:06:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 89 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:14,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2022-11-21 09:06:14,458 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 6 [2022-11-21 09:06:14,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:14,462 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2022-11-21 09:06:14,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2022-11-21 09:06:14,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 09:06:14,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:14,463 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:14,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:14,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:14,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:14,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:14,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1261842348, now seen corresponding path program 1 times [2022-11-21 09:06:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:14,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879510319] [2022-11-21 09:06:14,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:14,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:14,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:14,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:14,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:14,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 09:06:14,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:14,864 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:06:14,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:14,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:06:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:15,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:15,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879510319] [2022-11-21 09:06:15,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879510319] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:06:15,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:06:15,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-21 09:06:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25192137] [2022-11-21 09:06:15,871 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:06:15,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:06:15,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:15,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:06:15,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:06:15,872 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:18,162 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-11-21 09:06:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 09:06:18,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 09:06:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:18,165 INFO L225 Difference]: With dead ends: 98 [2022-11-21 09:06:18,165 INFO L226 Difference]: Without dead ends: 98 [2022-11-21 09:06:18,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:06:18,168 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 26 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:18,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 301 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-21 09:06:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-21 09:06:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-21 09:06:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 63 states have (on average 1.5873015873015872) internal successors, (100), 95 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:18,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2022-11-21 09:06:18,177 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 10 [2022-11-21 09:06:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:18,178 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2022-11-21 09:06:18,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:06:18,178 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2022-11-21 09:06:18,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 09:06:18,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:18,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:18,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:18,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:18,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:18,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash -821954458, now seen corresponding path program 1 times [2022-11-21 09:06:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:18,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690811732] [2022-11-21 09:06:18,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:18,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:18,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:18,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:18,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:18,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:06:18,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:18,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:06:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:18,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:18,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690811732] [2022-11-21 09:06:18,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690811732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:06:18,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:06:18,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-21 09:06:18,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304569960] [2022-11-21 09:06:18,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:06:18,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:06:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:06:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:06:18,866 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 09:06:19,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:19,249 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2022-11-21 09:06:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:06:19,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-21 09:06:19,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:19,251 INFO L225 Difference]: With dead ends: 118 [2022-11-21 09:06:19,252 INFO L226 Difference]: Without dead ends: 118 [2022-11-21 09:06:19,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:06:19,254 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:19,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 624 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 09:06:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-21 09:06:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-21 09:06:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 115 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 122 transitions. [2022-11-21 09:06:19,269 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 122 transitions. Word has length 25 [2022-11-21 09:06:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:19,270 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 122 transitions. [2022-11-21 09:06:19,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 10 states have internal predecessors, (40), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 09:06:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2022-11-21 09:06:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 09:06:19,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:19,272 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:19,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-21 09:06:19,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:19,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:19,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:19,490 INFO L85 PathProgramCache]: Analyzing trace with hash -34072841, now seen corresponding path program 2 times [2022-11-21 09:06:19,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:19,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789118998] [2022-11-21 09:06:19,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:06:19,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:19,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:19,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:19,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:19,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 09:06:19,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:06:19,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 09:06:19,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:19,765 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-21 09:06:19,766 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 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-21 09:06:19,826 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-21 09:06:19,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:19,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:19,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789118998] [2022-11-21 09:06:19,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789118998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:19,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:19,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:06:19,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931866994] [2022-11-21 09:06:19,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:19,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:06:19,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:06:19,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:19,828 INFO L87 Difference]: Start difference. First operand 118 states and 122 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:20,181 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2022-11-21 09:06:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:06:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-21 09:06:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:20,183 INFO L225 Difference]: With dead ends: 129 [2022-11-21 09:06:20,183 INFO L226 Difference]: Without dead ends: 129 [2022-11-21 09:06:20,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:06:20,185 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 55 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:20,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 91 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 09:06:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-21 09:06:20,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2022-11-21 09:06:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 110 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 117 transitions. [2022-11-21 09:06:20,193 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 117 transitions. Word has length 45 [2022-11-21 09:06:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:20,194 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 117 transitions. [2022-11-21 09:06:20,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 117 transitions. [2022-11-21 09:06:20,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 09:06:20,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:20,195 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:20,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-21 09:06:20,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:20,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:20,412 INFO L85 PathProgramCache]: Analyzing trace with hash -34072840, now seen corresponding path program 1 times [2022-11-21 09:06:20,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:20,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254994962] [2022-11-21 09:06:20,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:20,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:20,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:20,415 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:20,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:20,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:06:20,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:20,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:06:21,299 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:06:21,300 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:21,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254994962] [2022-11-21 09:06:21,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254994962] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:06:21,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:06:21,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-21 09:06:21,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676109893] [2022-11-21 09:06:21,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:06:21,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 09:06:21,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:21,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 09:06:21,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:06:21,302 INFO L87 Difference]: Start difference. First operand 113 states and 117 transitions. Second operand has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 09:06:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:22,132 INFO L93 Difference]: Finished difference Result 121 states and 125 transitions. [2022-11-21 09:06:22,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:06:22,133 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-21 09:06:22,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:22,135 INFO L225 Difference]: With dead ends: 121 [2022-11-21 09:06:22,135 INFO L226 Difference]: Without dead ends: 121 [2022-11-21 09:06:22,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2022-11-21 09:06:22,136 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:22,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1241 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 09:06:22,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-21 09:06:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-21 09:06:22,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 118 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 125 transitions. [2022-11-21 09:06:22,144 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 125 transitions. Word has length 45 [2022-11-21 09:06:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:22,145 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 125 transitions. [2022-11-21 09:06:22,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.0) internal successors, (80), 20 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 09:06:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 125 transitions. [2022-11-21 09:06:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-21 09:06:22,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:22,147 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:22,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-21 09:06:22,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:22,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2087093682, now seen corresponding path program 2 times [2022-11-21 09:06:22,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:22,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718167240] [2022-11-21 09:06:22,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 09:06:22,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:22,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:22,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:22,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:22,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 09:06:22,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 09:06:22,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:06:22,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:22,704 INFO L321 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2022-11-21 09:06:22,704 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 1 case distinctions, treesize of input 19 treesize of output 21 [2022-11-21 09:06:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:22,860 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:22,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:22,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718167240] [2022-11-21 09:06:22,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718167240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:22,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:22,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:06:22,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887983389] [2022-11-21 09:06:22,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:22,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:06:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:06:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:06:22,863 INFO L87 Difference]: Start difference. First operand 121 states and 125 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:23,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:23,471 INFO L93 Difference]: Finished difference Result 161 states and 167 transitions. [2022-11-21 09:06:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:06:23,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-11-21 09:06:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:23,473 INFO L225 Difference]: With dead ends: 161 [2022-11-21 09:06:23,474 INFO L226 Difference]: Without dead ends: 161 [2022-11-21 09:06:23,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:06:23,475 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 161 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:23,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 251 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 09:06:23,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-21 09:06:23,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 139. [2022-11-21 09:06:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.4) internal successors, (154), 136 states have internal predecessors, (154), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 156 transitions. [2022-11-21 09:06:23,482 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 156 transitions. Word has length 53 [2022-11-21 09:06:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:23,482 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 156 transitions. [2022-11-21 09:06:23,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:23,482 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 156 transitions. [2022-11-21 09:06:23,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-21 09:06:23,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:23,484 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:23,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:23,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:23,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:23,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1633693263, now seen corresponding path program 1 times [2022-11-21 09:06:23,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:23,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888063254] [2022-11-21 09:06:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:23,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:23,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:23,689 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:23,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:24,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 09:06:24,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:24,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 09:06:24,184 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 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 09:06:24,215 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 [2022-11-21 09:06:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 09:06:24,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-11-21 09:06:24,667 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-21 09:06:24,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-21 09:06:24,805 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:24,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:24,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:24,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888063254] [2022-11-21 09:06:24,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888063254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:24,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:24,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 09:06:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463932809] [2022-11-21 09:06:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:24,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:06:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:06:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:06:24,807 INFO L87 Difference]: Start difference. First operand 139 states and 156 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:27,281 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2022-11-21 09:06:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:06:27,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-11-21 09:06:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:27,283 INFO L225 Difference]: With dead ends: 156 [2022-11-21 09:06:27,283 INFO L226 Difference]: Without dead ends: 156 [2022-11-21 09:06:27,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:06:27,286 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 273 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:27,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 224 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-21 09:06:27,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-21 09:06:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 133. [2022-11-21 09:06:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 105 states have (on average 1.3523809523809525) internal successors, (142), 130 states have internal predecessors, (142), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2022-11-21 09:06:27,294 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 56 [2022-11-21 09:06:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:27,295 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2022-11-21 09:06:27,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:27,295 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2022-11-21 09:06:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-21 09:06:27,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:27,297 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:27,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:27,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:27,514 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:27,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1213382400, now seen corresponding path program 1 times [2022-11-21 09:06:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:27,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233899811] [2022-11-21 09:06:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:27,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:27,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:27,517 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:27,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:28,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:06:28,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:28,150 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-21 09:06:28,151 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-21 09:06:28,205 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-21 09:06:28,205 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 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-21 09:06:28,581 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-21 09:06:28,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-21 09:06:28,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2022-11-21 09:06:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:28,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:28,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:28,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233899811] [2022-11-21 09:06:28,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233899811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:28,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:28,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 09:06:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263660494] [2022-11-21 09:06:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:28,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:06:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:28,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:06:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:06:28,970 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:32,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:32,039 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2022-11-21 09:06:32,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:06:32,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-11-21 09:06:32,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:32,041 INFO L225 Difference]: With dead ends: 150 [2022-11-21 09:06:32,041 INFO L226 Difference]: Without dead ends: 150 [2022-11-21 09:06:32,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:06:32,042 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 175 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:32,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 283 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-21 09:06:32,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-21 09:06:32,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2022-11-21 09:06:32,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 110 states have (on average 1.3363636363636364) internal successors, (147), 134 states have internal predecessors, (147), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2022-11-21 09:06:32,049 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 59 [2022-11-21 09:06:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:32,049 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2022-11-21 09:06:32,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2022-11-21 09:06:32,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-21 09:06:32,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:32,051 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:32,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:32,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:32,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1430304375, now seen corresponding path program 1 times [2022-11-21 09:06:32,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:32,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924245173] [2022-11-21 09:06:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:32,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:32,257 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:32,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:32,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:06:32,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:32,827 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 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-21 09:06:32,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:33,071 INFO L321 Elim1Store]: treesize reduction 30, result has 28.6 percent of original size [2022-11-21 09:06:33,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 40 treesize of output 30 [2022-11-21 09:06:33,218 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 09:06:33,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 14 [2022-11-21 09:06:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:33,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:33,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:33,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924245173] [2022-11-21 09:06:33,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924245173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:33,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:33,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 09:06:33,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630132301] [2022-11-21 09:06:33,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:33,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 09:06:33,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:33,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 09:06:33,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:06:33,259 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:35,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:06:37,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:06:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:38,741 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2022-11-21 09:06:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:06:38,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-11-21 09:06:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:38,742 INFO L225 Difference]: With dead ends: 135 [2022-11-21 09:06:38,742 INFO L226 Difference]: Without dead ends: 135 [2022-11-21 09:06:38,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 09:06:38,743 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 74 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:38,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 271 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-11-21 09:06:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-21 09:06:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-11-21 09:06:38,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 110 states have (on average 1.309090909090909) internal successors, (144), 132 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:38,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2022-11-21 09:06:38,748 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 62 [2022-11-21 09:06:38,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:38,748 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2022-11-21 09:06:38,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:38,749 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2022-11-21 09:06:38,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-21 09:06:38,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:38,755 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:38,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:38,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:38,980 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:38,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:38,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1430304376, now seen corresponding path program 1 times [2022-11-21 09:06:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:38,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664846452] [2022-11-21 09:06:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:38,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:38,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:38,983 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:38,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:39,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 09:06:39,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:39,562 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 [2022-11-21 09:06:39,595 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:06:39,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:39,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:39,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-11-21 09:06:39,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-11-21 09:06:39,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 7 [2022-11-21 09:06:39,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 9 [2022-11-21 09:06:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:39,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:39,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:39,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664846452] [2022-11-21 09:06:39,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1664846452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:39,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:39,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:06:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608922327] [2022-11-21 09:06:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:39,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 09:06:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 09:06:39,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 09:06:39,926 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:40,796 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2022-11-21 09:06:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:06:40,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-11-21 09:06:40,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:40,798 INFO L225 Difference]: With dead ends: 134 [2022-11-21 09:06:40,798 INFO L226 Difference]: Without dead ends: 134 [2022-11-21 09:06:40,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:06:40,799 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 70 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:40,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 208 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 09:06:40,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-21 09:06:40,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-21 09:06:40,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 110 states have (on average 1.290909090909091) internal successors, (142), 131 states have internal predecessors, (142), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 144 transitions. [2022-11-21 09:06:40,805 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 144 transitions. Word has length 62 [2022-11-21 09:06:40,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:40,806 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 144 transitions. [2022-11-21 09:06:40,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:40,806 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2022-11-21 09:06:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-21 09:06:40,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:40,807 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:40,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-21 09:06:41,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:41,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:41,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:41,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1064372062, now seen corresponding path program 1 times [2022-11-21 09:06:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:41,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307375929] [2022-11-21 09:06:41,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:41,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:41,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:41,020 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:41,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:41,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 09:06:41,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:41,738 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 [2022-11-21 09:06:41,826 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-21 09:06:41,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-21 09:06:41,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:42,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2022-11-21 09:06:42,320 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:06:42,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-21 09:06:42,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-21 09:06:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:42,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:42,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:42,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307375929] [2022-11-21 09:06:42,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307375929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:42,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:42,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 09:06:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401695134] [2022-11-21 09:06:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 09:06:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 09:06:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:06:42,555 INFO L87 Difference]: Start difference. First operand 134 states and 144 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:44,420 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2022-11-21 09:06:44,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:06:44,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-11-21 09:06:44,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:44,421 INFO L225 Difference]: With dead ends: 157 [2022-11-21 09:06:44,421 INFO L226 Difference]: Without dead ends: 157 [2022-11-21 09:06:44,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-21 09:06:44,422 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 136 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:44,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 232 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-21 09:06:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-21 09:06:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2022-11-21 09:06:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.319327731092437) internal successors, (157), 140 states have internal predecessors, (157), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 159 transitions. [2022-11-21 09:06:44,427 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 159 transitions. Word has length 66 [2022-11-21 09:06:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:44,428 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 159 transitions. [2022-11-21 09:06:44,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 159 transitions. [2022-11-21 09:06:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-21 09:06:44,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:44,429 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:44,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:44,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:44,638 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1064372061, now seen corresponding path program 1 times [2022-11-21 09:06:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:44,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393912862] [2022-11-21 09:06:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:44,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:44,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:44,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-21 09:06:45,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:45,201 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 [2022-11-21 09:06:45,255 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:06:45,276 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-21 09:06:45,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-21 09:06:45,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:45,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:45,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-11-21 09:06:45,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-11-21 09:06:45,755 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:06:45,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-11-21 09:06:45,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-21 09:06:45,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 13 [2022-11-21 09:06:45,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-11-21 09:06:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-11-21 09:06:46,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:06:46,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:06:46,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393912862] [2022-11-21 09:06:46,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393912862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:06:46,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:06:46,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:06:46,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015970731] [2022-11-21 09:06:46,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:06:46,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:06:46,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:06:46,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:06:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:06:46,030 INFO L87 Difference]: Start difference. First operand 143 states and 159 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:47,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:06:47,767 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2022-11-21 09:06:47,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 09:06:47,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-11-21 09:06:47,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:06:47,769 INFO L225 Difference]: With dead ends: 155 [2022-11-21 09:06:47,772 INFO L226 Difference]: Without dead ends: 155 [2022-11-21 09:06:47,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-11-21 09:06:47,774 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 109 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-21 09:06:47,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 244 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-21 09:06:47,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-21 09:06:47,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 143. [2022-11-21 09:06:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 140 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 155 transitions. [2022-11-21 09:06:47,784 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 155 transitions. Word has length 66 [2022-11-21 09:06:47,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:06:47,784 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 155 transitions. [2022-11-21 09:06:47,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:06:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 155 transitions. [2022-11-21 09:06:47,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-21 09:06:47,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:06:47,795 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:06:47,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:48,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:48,019 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:06:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:06:48,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1328353215, now seen corresponding path program 1 times [2022-11-21 09:06:48,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:06:48,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868176888] [2022-11-21 09:06:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:06:48,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:06:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:06:48,022 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:06:48,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:06:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:06:48,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-21 09:06:48,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:06:48,856 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 [2022-11-21 09:06:48,942 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-21 09:06:48,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-21 09:06:49,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:06:49,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2022-11-21 09:06:49,406 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:06:49,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-21 09:06:49,605 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:06:49,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2022-11-21 09:06:49,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 15 [2022-11-21 09:06:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-21 09:06:49,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:06:52,231 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_983) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-21 09:06:52,312 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_982))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-21 09:06:52,354 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_982))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2022-11-21 09:06:52,418 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_983 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_982 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_981 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_981))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_982)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_983)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1)))))) is different from false [2022-11-21 09:06:52,488 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:06:52,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2022-11-21 09:06:52,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1801 treesize of output 1387 [2022-11-21 09:06:52,589 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 1183 treesize of output 924 [2022-11-21 09:06:52,603 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 924 treesize of output 798 [2022-11-21 09:06:52,632 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 798 treesize of output 770 [2022-11-21 09:07:02,037 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-21 09:07:02,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 30 [2022-11-21 09:07:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 190 trivial. 2 not checked. [2022-11-21 09:07:02,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 09:07:02,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868176888] [2022-11-21 09:07:02,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868176888] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 09:07:02,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 09:07:02,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2022-11-21 09:07:02,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108401273] [2022-11-21 09:07:02,048 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 09:07:02,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-21 09:07:02,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 09:07:02,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-21 09:07:02,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=163, Unknown=8, NotChecked=116, Total=342 [2022-11-21 09:07:02,049 INFO L87 Difference]: Start difference. First operand 143 states and 155 transitions. Second operand has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:07:04,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:04,999 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions. [2022-11-21 09:07:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 09:07:05,000 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-11-21 09:07:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:05,001 INFO L225 Difference]: With dead ends: 151 [2022-11-21 09:07:05,001 INFO L226 Difference]: Without dead ends: 151 [2022-11-21 09:07:05,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=86, Invalid=228, Unknown=8, NotChecked=140, Total=462 [2022-11-21 09:07:05,002 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 212 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 271 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:05,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 316 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 243 Invalid, 0 Unknown, 271 Unchecked, 1.6s Time] [2022-11-21 09:07:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-21 09:07:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 142. [2022-11-21 09:07:05,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 119 states have (on average 1.26890756302521) internal successors, (151), 139 states have internal predecessors, (151), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:07:05,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 153 transitions. [2022-11-21 09:07:05,008 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 153 transitions. Word has length 71 [2022-11-21 09:07:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:05,009 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 153 transitions. [2022-11-21 09:07:05,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 19 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:07:05,009 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 153 transitions. [2022-11-21 09:07:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-21 09:07:05,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:05,010 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:07:05,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:07:05,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:07:05,231 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2022-11-21 09:07:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:05,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1328353214, now seen corresponding path program 1 times [2022-11-21 09:07:05,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 09:07:05,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481652915] [2022-11-21 09:07:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:05,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 09:07:05,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 09:07:05,234 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 09:07:05,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d636484b-1ba4-4689-b7a0-9525ed830646/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 09:07:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:05,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 09:07:05,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:07:05,988 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 [2022-11-21 09:07:06,068 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 09:07:06,110 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-21 09:07:06,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-21 09:07:06,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:07:06,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-21 09:07:06,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-11-21 09:07:06,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-11-21 09:07:06,742 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:07:06,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-11-21 09:07:06,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-21 09:07:07,164 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-21 09:07:07,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2022-11-21 09:07:07,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-21 09:07:07,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 13 [2022-11-21 09:07:07,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-11-21 09:07:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-21 09:07:07,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 09:07:09,051 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) (_ bv1 64) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem127#1.base| v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))) is different from false [2022-11-21 09:07:09,236 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse1 ((_ sign_extend 32) (bvadd |c_ULTIMATE.start_main_~j~0#1| (_ bv1 32)))) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (and (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 .cse1) (bvadd (_ bv1 64) .cse0 .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))))))) is different from false [2022-11-21 09:07:09,405 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (and (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))) (forall ((v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse3) (bvadd .cse0 (_ bv1 64) .cse3))))))) is different from false [2022-11-21 09:07:09,533 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse2 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse1 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1099) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1100) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2) v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 (_ bv1 64) .cse1)))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1100))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem125#1.base| v_ArrVal_1099) .cse3 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse2)))))))) is different from false [2022-11-21 09:07:10,180 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse1 ((_ sign_extend 32) (_ bv1 32))) (.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (and (forall ((v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1099) (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1100) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 .cse1) (bvadd .cse0 .cse1 (_ bv1 64))))) (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_1100))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_1099) .cse4 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) .cse1 (_ bv1 64)) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))))))))) is different from false [2022-11-21 09:07:10,608 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse3 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (and (forall ((v_ArrVal_1102 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1098 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1097 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1097))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_1100))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv1 64) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1098) .cse1 v_ArrVal_1099) .cse2 v_ArrVal_1101) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_1102) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_1099 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1098 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1101 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1100 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1097 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1097))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1098) .cse7 v_ArrVal_1099) (select (select (store .cse8 .cse7 v_ArrVal_1100) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3) v_ArrVal_1101))) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse3))) (bvule (bvadd .cse0 .cse6) (bvadd .cse0 (_ bv1 64) .cse6)))))) is different from false [2022-11-21 09:07:10,834 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:07:10,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 228 [2022-11-21 09:07:10,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 09:07:10,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 137 [2022-11-21 09:07:10,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11527 treesize of output 9466 [2022-11-21 09:07:11,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 144675 treesize of output 140058 [2022-11-21 09:07:12,411 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 140054 treesize of output 126614 [2022-11-21 09:07:12,891 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 126614 treesize of output 120342 [2022-11-21 09:07:13,329 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 120342 treesize of output 106902 [2022-11-21 09:07:13,686 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 106902 treesize of output 90774 [2022-11-21 09:07:14,090 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 90774 treesize of output 87190 [2022-11-21 09:07:14,457 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 87190 treesize of output 74618