./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af189c8870b49f611aa022222cf968f0c789441d4d4f9926444b1aa8c8dc68d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:52:24,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:24,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:24,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:24,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:24,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:24,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:24,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:24,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:24,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:24,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:24,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:24,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:24,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:24,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:24,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:24,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:24,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:24,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:24,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:24,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:24,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:24,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:24,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:24,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:24,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:24,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:24,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:24,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:24,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:24,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:24,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:24,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:24,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:24,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:24,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:24,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:24,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:24,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:24,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:24,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:24,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:52:24,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:24,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:24,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:24,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:24,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:24,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:24,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:24,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:24,997 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:24,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:24,999 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:25,000 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:25,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:25,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:25,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:25,002 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:52:25,002 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:52:25,002 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:52:25,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:25,003 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:52:25,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:25,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:25,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:25,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:25,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:25,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:25,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:25,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:25,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:52:25,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:52:25,006 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_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af189c8870b49f611aa022222cf968f0c789441d4d4f9926444b1aa8c8dc68d1 [2022-11-18 20:52:25,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:25,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:25,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:25,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:25,446 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:25,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:25,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/920e0f020/2b1995c8132e4739a48a3f228d76508a/FLAG06da1282c [2022-11-18 20:52:26,349 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:26,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:26,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/920e0f020/2b1995c8132e4739a48a3f228d76508a/FLAG06da1282c [2022-11-18 20:52:26,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/920e0f020/2b1995c8132e4739a48a3f228d76508a [2022-11-18 20:52:26,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:26,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:26,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:26,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:26,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:26,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:26" (1/1) ... [2022-11-18 20:52:26,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da7fcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:26, skipping insertion in model container [2022-11-18 20:52:26,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:26" (1/1) ... [2022-11-18 20:52:26,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:26,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:27,035 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-18 20:52:27,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:27,476 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:27,494 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-18 20:52:27,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:27,600 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:27,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27 WrapperNode [2022-11-18 20:52:27,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:27,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:27,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:27,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:27,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,723 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2022-11-18 20:52:27,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:27,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:27,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:27,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,787 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:27,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:27,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:27,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:27,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (1/1) ... [2022-11-18 20:52:27,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:27,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:27,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:27,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:52:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:52:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:52:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:52:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:52:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:52:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:52:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:52:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:52:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:52:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:27,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:27,923 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:52:28,121 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:28,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:28,687 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:28,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:28,863 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:52:28,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:28 BoogieIcfgContainer [2022-11-18 20:52:28,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:28,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:28,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:28,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:28,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:26" (1/3) ... [2022-11-18 20:52:28,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189ef842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:28, skipping insertion in model container [2022-11-18 20:52:28,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:27" (2/3) ... [2022-11-18 20:52:28,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189ef842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:28, skipping insertion in model container [2022-11-18 20:52:28,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:28" (3/3) ... [2022-11-18 20:52:28,878 INFO L112 eAbstractionObserver]: Analyzing ICFG mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:28,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:28,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 20:52:28,903 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:52:29,006 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:52:29,072 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:52:29,098 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 105 transitions, 220 flow [2022-11-18 20:52:29,110 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 105 transitions, 220 flow [2022-11-18 20:52:29,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 105 transitions, 220 flow [2022-11-18 20:52:29,179 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2022-11-18 20:52:29,180 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:29,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-11-18 20:52:29,188 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-11-18 20:52:35,868 INFO L134 LiptonReduction]: Checked pairs total: 3523 [2022-11-18 20:52:35,869 INFO L136 LiptonReduction]: Total number of compositions: 108 [2022-11-18 20:52:35,889 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-11-18 20:52:35,961 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:35,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:35,990 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;@488872b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:35,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 20:52:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:52:36,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:36,004 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:52:36,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:36,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash 469, now seen corresponding path program 1 times [2022-11-18 20:52:36,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860119693] [2022-11-18 20:52:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:36,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860119693] [2022-11-18 20:52:36,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860119693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:36,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:36,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:52:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072262771] [2022-11-18 20:52:36,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:36,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:52:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:36,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:52:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:36,266 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:36,364 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-11-18 20:52:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:52:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:52:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:36,391 INFO L225 Difference]: With dead ends: 242 [2022-11-18 20:52:36,392 INFO L226 Difference]: Without dead ends: 242 [2022-11-18 20:52:36,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:36,399 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:36,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-18 20:52:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-18 20:52:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-11-18 20:52:36,486 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-11-18 20:52:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:36,487 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-11-18 20:52:36,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-11-18 20:52:36,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:52:36,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:36,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:52:36,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:52:36,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:36,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,489 INFO L85 PathProgramCache]: Analyzing trace with hash 462333, now seen corresponding path program 1 times [2022-11-18 20:52:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022476911] [2022-11-18 20:52:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:36,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:36,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022476911] [2022-11-18 20:52:36,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022476911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:36,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:36,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:52:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867504442] [2022-11-18 20:52:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:36,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:36,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:36,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:36,804 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:36,903 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-11-18 20:52:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:36,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:52:36,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:36,907 INFO L225 Difference]: With dead ends: 198 [2022-11-18 20:52:36,907 INFO L226 Difference]: Without dead ends: 192 [2022-11-18 20:52:36,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:36,909 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:36,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-18 20:52:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-18 20:52:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-11-18 20:52:36,924 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-11-18 20:52:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:36,925 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-11-18 20:52:36,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-11-18 20:52:36,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:52:36,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:36,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:36,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:52:36,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:36,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash 802962381, now seen corresponding path program 1 times [2022-11-18 20:52:36,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583598236] [2022-11-18 20:52:36,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:37,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:37,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583598236] [2022-11-18 20:52:37,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583598236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:37,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:37,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:37,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369188174] [2022-11-18 20:52:37,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:37,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:37,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:37,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:37,281 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:37,426 INFO L93 Difference]: Finished difference Result 222 states and 518 transitions. [2022-11-18 20:52:37,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:37,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:52:37,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:37,429 INFO L225 Difference]: With dead ends: 222 [2022-11-18 20:52:37,429 INFO L226 Difference]: Without dead ends: 222 [2022-11-18 20:52:37,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:37,434 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:37,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 8 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-18 20:52:37,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 202. [2022-11-18 20:52:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 200 states have (on average 2.435) internal successors, (487), 201 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 487 transitions. [2022-11-18 20:52:37,455 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 487 transitions. Word has length 8 [2022-11-18 20:52:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:37,455 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 487 transitions. [2022-11-18 20:52:37,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 487 transitions. [2022-11-18 20:52:37,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:52:37,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:37,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:37,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:52:37,458 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:37,459 INFO L85 PathProgramCache]: Analyzing trace with hash 802962415, now seen corresponding path program 1 times [2022-11-18 20:52:37,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:37,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002621986] [2022-11-18 20:52:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:37,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:37,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:37,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002621986] [2022-11-18 20:52:37,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002621986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:37,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:37,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:37,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915536876] [2022-11-18 20:52:37,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:37,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:37,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:37,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:37,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:37,942 INFO L87 Difference]: Start difference. First operand 202 states and 487 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:38,064 INFO L93 Difference]: Finished difference Result 172 states and 388 transitions. [2022-11-18 20:52:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:38,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:52:38,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:38,067 INFO L225 Difference]: With dead ends: 172 [2022-11-18 20:52:38,067 INFO L226 Difference]: Without dead ends: 142 [2022-11-18 20:52:38,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:38,068 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 25 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:38,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 7 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:38,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-18 20:52:38,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-18 20:52:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3333333333333335) internal successors, (329), 141 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 329 transitions. [2022-11-18 20:52:38,092 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 329 transitions. Word has length 8 [2022-11-18 20:52:38,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:38,093 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 329 transitions. [2022-11-18 20:52:38,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 329 transitions. [2022-11-18 20:52:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:52:38,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:38,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:52:38,097 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:38,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:38,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1495116523, now seen corresponding path program 1 times [2022-11-18 20:52:38,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:38,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252018930] [2022-11-18 20:52:38,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:38,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252018930] [2022-11-18 20:52:38,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252018930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:38,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:38,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360963457] [2022-11-18 20:52:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:38,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:38,412 INFO L87 Difference]: Start difference. First operand 142 states and 329 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:38,547 INFO L93 Difference]: Finished difference Result 108 states and 206 transitions. [2022-11-18 20:52:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:52:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 20:52:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:38,549 INFO L225 Difference]: With dead ends: 108 [2022-11-18 20:52:38,549 INFO L226 Difference]: Without dead ends: 78 [2022-11-18 20:52:38,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:38,551 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:38,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:38,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-18 20:52:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-18 20:52:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7792207792207793) internal successors, (137), 77 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 137 transitions. [2022-11-18 20:52:38,556 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 137 transitions. Word has length 10 [2022-11-18 20:52:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:38,556 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 137 transitions. [2022-11-18 20:52:38,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 137 transitions. [2022-11-18 20:52:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 20:52:38,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:38,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:38,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:52:38,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:38,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash -92258971, now seen corresponding path program 1 times [2022-11-18 20:52:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:38,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884766795] [2022-11-18 20:52:38,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:38,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:38,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:38,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884766795] [2022-11-18 20:52:38,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884766795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:38,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:38,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:52:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453320332] [2022-11-18 20:52:38,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:38,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:38,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:38,892 INFO L87 Difference]: Start difference. First operand 78 states and 137 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:39,007 INFO L93 Difference]: Finished difference Result 56 states and 91 transitions. [2022-11-18 20:52:39,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:52:39,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 20:52:39,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:39,008 INFO L225 Difference]: With dead ends: 56 [2022-11-18 20:52:39,009 INFO L226 Difference]: Without dead ends: 46 [2022-11-18 20:52:39,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:52:39,010 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 43 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:39,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-18 20:52:39,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-18 20:52:39,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2022-11-18 20:52:39,015 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2022-11-18 20:52:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:39,015 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2022-11-18 20:52:39,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,016 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2022-11-18 20:52:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:52:39,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:39,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:39,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:52:39,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:39,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1407924176, now seen corresponding path program 1 times [2022-11-18 20:52:39,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:39,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445471587] [2022-11-18 20:52:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:39,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:39,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:39,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445471587] [2022-11-18 20:52:39,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445471587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:39,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:39,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:52:39,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6821848] [2022-11-18 20:52:39,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:39,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:52:39,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:39,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:52:39,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:39,339 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:39,516 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2022-11-18 20:52:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:52:39,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:52:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:39,518 INFO L225 Difference]: With dead ends: 64 [2022-11-18 20:52:39,518 INFO L226 Difference]: Without dead ends: 46 [2022-11-18 20:52:39,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:52:39,519 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 23 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:39,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-18 20:52:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2022-11-18 20:52:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.564102564102564) internal successors, (61), 39 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 61 transitions. [2022-11-18 20:52:39,522 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 61 transitions. Word has length 17 [2022-11-18 20:52:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:39,523 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 61 transitions. [2022-11-18 20:52:39,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2022-11-18 20:52:39,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:52:39,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:39,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:39,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:52:39,525 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:39,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:39,525 INFO L85 PathProgramCache]: Analyzing trace with hash 148194284, now seen corresponding path program 2 times [2022-11-18 20:52:39,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:39,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152033966] [2022-11-18 20:52:39,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:39,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:39,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:39,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:39,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152033966] [2022-11-18 20:52:39,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152033966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:39,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:39,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:52:39,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386902643] [2022-11-18 20:52:39,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:39,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:52:39,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:39,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:52:39,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:52:39,881 INFO L87 Difference]: Start difference. First operand 40 states and 61 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:40,056 INFO L93 Difference]: Finished difference Result 58 states and 86 transitions. [2022-11-18 20:52:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:52:40,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:52:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:40,060 INFO L225 Difference]: With dead ends: 58 [2022-11-18 20:52:40,060 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 20:52:40,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:52:40,062 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 37 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:40,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 20:52:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-18 20:52:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2022-11-18 20:52:40,065 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2022-11-18 20:52:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:40,065 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2022-11-18 20:52:40,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-11-18 20:52:40,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:52:40,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:40,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:40,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:52:40,069 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1862931076, now seen corresponding path program 3 times [2022-11-18 20:52:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:40,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424235553] [2022-11-18 20:52:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:40,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:52:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:52:40,301 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:52:40,301 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:52:40,303 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-18 20:52:40,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-18 20:52:40,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 20:52:40,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 20:52:40,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 20:52:40,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-18 20:52:40,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-18 20:52:40,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-18 20:52:40,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-18 20:52:40,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-18 20:52:40,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:52:40,319 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:40,326 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:52:40,326 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:52:40,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:52:40 BasicIcfg [2022-11-18 20:52:40,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:52:40,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:52:40,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:52:40,432 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:52:40,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:28" (3/4) ... [2022-11-18 20:52:40,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:52:40,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:52:40,437 INFO L158 Benchmark]: Toolchain (without parser) took 13883.77ms. Allocated memory was 136.3MB in the beginning and 222.3MB in the end (delta: 86.0MB). Free memory was 103.6MB in the beginning and 142.7MB in the end (delta: -39.2MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,437 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:52:40,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1045.81ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.14ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 98.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,439 INFO L158 Benchmark]: Boogie Preprocessor took 79.98ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,447 INFO L158 Benchmark]: RCFGBuilder took 1058.94ms. Allocated memory is still 136.3MB. Free memory was 96.6MB in the beginning and 65.5MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,448 INFO L158 Benchmark]: TraceAbstraction took 11562.00ms. Allocated memory was 136.3MB in the beginning and 222.3MB in the end (delta: 86.0MB). Free memory was 64.7MB in the beginning and 142.7MB in the end (delta: -78.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-11-18 20:52:40,448 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 222.3MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:52:40,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1045.81ms. Allocated memory is still 136.3MB. Free memory was 103.2MB in the beginning and 100.7MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.14ms. Allocated memory is still 136.3MB. Free memory was 100.7MB in the beginning and 98.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.98ms. Allocated memory is still 136.3MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1058.94ms. Allocated memory is still 136.3MB. Free memory was 96.6MB in the beginning and 65.5MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11562.00ms. Allocated memory was 136.3MB in the beginning and 222.3MB in the end (delta: 86.0MB). Free memory was 64.7MB in the beginning and 142.7MB in the end (delta: -78.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 222.3MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 110 PlacesBefore, 33 PlacesAfterwards, 105 TransitionsBefore, 27 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 52 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 3523 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2141, independent: 2018, independent conditional: 0, independent unconditional: 2018, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1015, independent: 977, independent conditional: 0, independent unconditional: 977, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1015, independent: 963, independent conditional: 0, independent unconditional: 963, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 640, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 611, dependent conditional: 0, dependent unconditional: 611, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2141, independent: 1041, independent conditional: 0, independent unconditional: 1041, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 1015, unknown conditional: 0, unknown unconditional: 1015] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 103, Positive conditional cache size: 0, Positive unconditional cache size: 103, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L731] 0 int y$w_buff0; [L733] 0 int y$w_buff1; [L710] 0 int __unbuffered_p0_EAX = 0; [L725] 0 _Bool y$r_buff0_thd2; [L722] 0 int y$mem_tmp; [L712] 0 int __unbuffered_p1_EAX = 0; [L723] 0 _Bool y$r_buff0_thd0; [L724] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$read_delayed; [L708] 0 int __unbuffered_cnt = 0; [L721] 0 _Bool y$flush_delayed; [L734] 0 _Bool y$w_buff1_used; [L716] 0 _Bool main$tmp_guard1; [L715] 0 _Bool main$tmp_guard0; [L714] 0 int __unbuffered_p1_EBX = 0; [L730] 0 int *y$read_delayed_var; [L732] 0 _Bool y$w_buff0_used; [L718] 0 int x = 0; [L726] 0 _Bool y$r_buff1_thd0; [L720] 0 int y = 0; [L728] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd1; [L812] 0 pthread_t t305; [L813] FCALL, FORK 0 pthread_create(&t305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t305, ((void *)0), P0, ((void *)0))=-2, t305={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L814] 0 pthread_t t306; [L740] 1 y$w_buff1 = y$w_buff0 [L741] 1 y$w_buff0 = 1 [L742] 1 y$w_buff1_used = y$w_buff0_used [L743] 1 y$w_buff0_used = (_Bool)1 [L744] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L744] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L745] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L746] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L747] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] FCALL, FORK 0 pthread_create(&t306, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t306, ((void *)0), P1, ((void *)0))=-1, t305={5:0}, t306={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L774] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L775] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L776] 2 y$flush_delayed = weak$$choice2 [L777] 2 y$mem_tmp = y [L778] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L779] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L780] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L781] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L782] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L784] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 __unbuffered_p1_EBX = y [L786] 2 y = y$flush_delayed ? y$mem_tmp : y [L787] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L790] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L791] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L792] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L793] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L794] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L817] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t305={5:0}, t306={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L819] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L819] RET 0 assume_abort_if_not(main$tmp_guard0) [L821] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t305={5:0}, t306={3:0}, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L828] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=66, weak$$choice2=255, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 124 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 17 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:52:40,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af189c8870b49f611aa022222cf968f0c789441d4d4f9926444b1aa8c8dc68d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:52:43,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:43,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:43,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:43,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:43,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:43,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:43,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:43,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:43,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:43,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:43,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:43,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:43,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:43,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:43,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:43,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:43,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:43,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:43,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:43,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:43,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:43,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:43,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:43,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:43,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:43,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:43,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:43,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:43,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:43,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:43,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:43,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:43,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:43,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:43,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:43,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:43,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:43,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:43,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:43,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:43,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:52:43,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:43,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:43,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:43,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:43,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:43,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:43,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:43,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:43,549 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:43,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:43,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:43,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:43,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:43,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:43,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:43,553 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:52:43,553 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:52:43,554 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:52:43,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:43,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:52:43,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:52:43,555 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:52:43,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:43,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:43,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:43,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:43,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:43,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:43,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:43,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:43,558 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:52:43,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:52:43,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:52:43,559 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_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af189c8870b49f611aa022222cf968f0c789441d4d4f9926444b1aa8c8dc68d1 [2022-11-18 20:52:44,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:44,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:44,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:44,088 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:44,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:44,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:44,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/5b973b335/71e96197a8de400b8440d298e1a7e526/FLAGd9e3a45e9 [2022-11-18 20:52:45,019 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:45,020 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:45,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/5b973b335/71e96197a8de400b8440d298e1a7e526/FLAGd9e3a45e9 [2022-11-18 20:52:45,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/data/5b973b335/71e96197a8de400b8440d298e1a7e526 [2022-11-18 20:52:45,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:45,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:45,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:45,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:45,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:45,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:45" (1/1) ... [2022-11-18 20:52:45,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6496e6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:45, skipping insertion in model container [2022-11-18 20:52:45,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:45" (1/1) ... [2022-11-18 20:52:45,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:45,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:45,535 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-18 20:52:45,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:45,915 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:45,931 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/sv-benchmarks/c/pthread-wmm/mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i[996,1009] [2022-11-18 20:52:45,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:46,032 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:46,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46 WrapperNode [2022-11-18 20:52:46,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:46,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:46,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:46,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:46,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,118 INFO L138 Inliner]: procedures = 178, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2022-11-18 20:52:46,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:46,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:46,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:46,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:46,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:46,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:46,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:46,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:46,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (1/1) ... [2022-11-18 20:52:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:46,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:46,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:46,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:46,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:52:46,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:52:46,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 20:52:46,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 20:52:46,322 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 20:52:46,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 20:52:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:52:46,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:46,326 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:52:46,604 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:46,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:47,248 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:47,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:47,484 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:52:47,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:47 BoogieIcfgContainer [2022-11-18 20:52:47,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:47,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:47,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:47,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:47,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:45" (1/3) ... [2022-11-18 20:52:47,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f941ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:47, skipping insertion in model container [2022-11-18 20:52:47,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:46" (2/3) ... [2022-11-18 20:52:47,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f941ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:47, skipping insertion in model container [2022-11-18 20:52:47,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:47" (3/3) ... [2022-11-18 20:52:47,505 INFO L112 eAbstractionObserver]: Analyzing ICFG mix012_power.oepc_power.opt_pso.oepc_rmo.oepc_rmo.opt_tso.oepc.i [2022-11-18 20:52:47,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:47,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 20:52:47,538 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:52:47,691 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:52:47,737 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:52:47,757 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 106 transitions, 222 flow [2022-11-18 20:52:47,761 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 106 transitions, 222 flow [2022-11-18 20:52:47,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 106 transitions, 222 flow [2022-11-18 20:52:47,857 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-11-18 20:52:47,858 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:52:47,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-11-18 20:52:47,870 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-11-18 20:52:58,182 INFO L134 LiptonReduction]: Checked pairs total: 3705 [2022-11-18 20:52:58,182 INFO L136 LiptonReduction]: Total number of compositions: 107 [2022-11-18 20:52:58,194 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-11-18 20:52:58,243 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:58,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:58,276 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;@7d852341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:58,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 20:52:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:58,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:52:58,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:58,288 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:52:58,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash 471, now seen corresponding path program 1 times [2022-11-18 20:52:58,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:52:58,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551298971] [2022-11-18 20:52:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:58,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:52:58,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:52:58,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:52:58,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:52:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:58,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:52:58,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:58,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:58,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:52:58,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551298971] [2022-11-18 20:52:58,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551298971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:58,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:58,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:52:58,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874264261] [2022-11-18 20:52:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:52:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:52:58,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:52:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:58,481 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:58,607 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-11-18 20:52:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:52:58,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:52:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:58,626 INFO L225 Difference]: With dead ends: 242 [2022-11-18 20:52:58,639 INFO L226 Difference]: Without dead ends: 242 [2022-11-18 20:52:58,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:58,645 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:58,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-18 20:52:58,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-18 20:52:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:58,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-11-18 20:52:58,808 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-11-18 20:52:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:58,809 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-11-18 20:52:58,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-11-18 20:52:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:52:58,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:58,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:52:58,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -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)] Ended with exit code 0 [2022-11-18 20:52:59,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:52:59,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:59,026 INFO L85 PathProgramCache]: Analyzing trace with hash 462397, now seen corresponding path program 1 times [2022-11-18 20:52:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:52:59,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316420437] [2022-11-18 20:52:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:59,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:52:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:52:59,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:52:59,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:52:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:59,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:52:59,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:59,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:59,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:52:59,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316420437] [2022-11-18 20:52:59,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316420437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:59,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:59,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:52:59,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316929535] [2022-11-18 20:52:59,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:59,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:59,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:52:59,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:59,221 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:59,357 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-11-18 20:52:59,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:59,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:52:59,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:59,361 INFO L225 Difference]: With dead ends: 198 [2022-11-18 20:52:59,361 INFO L226 Difference]: Without dead ends: 192 [2022-11-18 20:52:59,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:59,371 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:59,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-18 20:52:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-11-18 20:52:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-11-18 20:52:59,419 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-11-18 20:52:59,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:59,420 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-11-18 20:52:59,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-11-18 20:52:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:52:59,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:59,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:59,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:52:59,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:52:59,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:52:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1743682474, now seen corresponding path program 1 times [2022-11-18 20:52:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:52:59,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555040477] [2022-11-18 20:52:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:59,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:52:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:52:59,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:52:59,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:52:59,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:59,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:52:59,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:52:59,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:59,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:52:59,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:52:59,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555040477] [2022-11-18 20:52:59,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555040477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:59,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:59,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:59,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870518172] [2022-11-18 20:52:59,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:59,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:52:59,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:52:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:52:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:52:59,813 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:59,948 INFO L93 Difference]: Finished difference Result 122 states and 233 transitions. [2022-11-18 20:52:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:52:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:52:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:59,950 INFO L225 Difference]: With dead ends: 122 [2022-11-18 20:52:59,950 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 20:52:59,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:52:59,952 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:59,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 6 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:52:59,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 20:52:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-18 20:52:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.8222222222222222) internal successors, (164), 91 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 164 transitions. [2022-11-18 20:52:59,963 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 164 transitions. Word has length 8 [2022-11-18 20:52:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:59,964 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 164 transitions. [2022-11-18 20:52:59,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 164 transitions. [2022-11-18 20:52:59,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:52:59,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:59,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:59,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:00,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:00,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:53:00,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:00,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2084689113, now seen corresponding path program 1 times [2022-11-18 20:53:00,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:00,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745053364] [2022-11-18 20:53:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:00,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:00,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:00,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:53:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:00,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:53:00,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:00,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:00,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:00,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745053364] [2022-11-18 20:53:00,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745053364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:00,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:00,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:53:00,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447704915] [2022-11-18 20:53:00,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:00,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:53:00,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:00,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:53:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:53:00,480 INFO L87 Difference]: Start difference. First operand 92 states and 164 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:00,668 INFO L93 Difference]: Finished difference Result 57 states and 92 transitions. [2022-11-18 20:53:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:00,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 20:53:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:00,669 INFO L225 Difference]: With dead ends: 57 [2022-11-18 20:53:00,669 INFO L226 Difference]: Without dead ends: 47 [2022-11-18 20:53:00,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:53:00,671 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:00,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 8 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:53:00,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-18 20:53:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-18 20:53:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 46 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-11-18 20:53:00,676 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 12 [2022-11-18 20:53:00,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:00,677 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-11-18 20:53:00,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-11-18 20:53:00,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:53:00,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:00,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:00,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:53:00,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:00,901 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:53:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1043962968, now seen corresponding path program 1 times [2022-11-18 20:53:00,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:00,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867400865] [2022-11-18 20:53:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:00,902 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:00,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:00,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:00,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:53:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:01,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:53:01,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:01,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:01,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:01,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867400865] [2022-11-18 20:53:01,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867400865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:01,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:01,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:53:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398603779] [2022-11-18 20:53:01,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:53:01,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:53:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:01,454 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:01,488 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2022-11-18 20:53:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:53:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:53:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:01,490 INFO L225 Difference]: With dead ends: 46 [2022-11-18 20:53:01,490 INFO L226 Difference]: Without dead ends: 46 [2022-11-18 20:53:01,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:53:01,495 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:01,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-18 20:53:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-18 20:53:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-18 20:53:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2022-11-18 20:53:01,510 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 17 [2022-11-18 20:53:01,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:01,510 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2022-11-18 20:53:01,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2022-11-18 20:53:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:53:01,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:01,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:01,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 20:53:01,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:01,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:53:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1043962930, now seen corresponding path program 1 times [2022-11-18 20:53:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:01,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [559126530] [2022-11-18 20:53:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:53:01,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:01,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:01,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:01,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 20:53:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:53:01,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:53:01,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:53:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:53:01,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:53:01,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:53:01,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [559126530] [2022-11-18 20:53:01,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [559126530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:53:01,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:53:01,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:53:01,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122195603] [2022-11-18 20:53:01,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:53:01,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:53:01,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:53:01,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:53:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:53:01,974 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:53:02,182 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2022-11-18 20:53:02,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:53:02,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:53:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:53:02,184 INFO L225 Difference]: With dead ends: 64 [2022-11-18 20:53:02,184 INFO L226 Difference]: Without dead ends: 36 [2022-11-18 20:53:02,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:53:02,185 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:53:02,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:53:02,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-18 20:53:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-18 20:53:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2022-11-18 20:53:02,203 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2022-11-18 20:53:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:53:02,204 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2022-11-18 20:53:02,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:53:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-11-18 20:53:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:53:02,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:53:02,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:53:02,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 20:53:02,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:02,407 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 20:53:02,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:53:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1174598924, now seen corresponding path program 2 times [2022-11-18 20:53:02,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:53:02,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115418354] [2022-11-18 20:53:02,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:53:02,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:02,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:53:02,410 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:53:02,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 20:53:02,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:53:02,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-18 20:53:02,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:53:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:53:02,725 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:53:02,725 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:53:02,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-18 20:53:02,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-11-18 20:53:02,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 20:53:02,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 20:53:02,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 20:53:02,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-11-18 20:53:02,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-11-18 20:53:02,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-11-18 20:53:02,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-11-18 20:53:02,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-11-18 20:53:02,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -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 [2022-11-18 20:53:02,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:53:02,958 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-18 20:53:02,965 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:53:02,966 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:53:03,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:53:03 BasicIcfg [2022-11-18 20:53:03,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:53:03,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:53:03,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:53:03,088 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:53:03,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:47" (3/4) ... [2022-11-18 20:53:03,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:53:03,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:53:03,095 INFO L158 Benchmark]: Toolchain (without parser) took 17841.60ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 57.7MB in the beginning and 61.8MB in the end (delta: -4.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,095 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 75.5MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:53:03,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.48ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 46.3MB in the end (delta: 11.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.52ms. Allocated memory is still 75.5MB. Free memory was 46.3MB in the beginning and 43.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,097 INFO L158 Benchmark]: Boogie Preprocessor took 71.58ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,097 INFO L158 Benchmark]: RCFGBuilder took 1294.83ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 33.3MB in the end (delta: 8.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,098 INFO L158 Benchmark]: TraceAbstraction took 15594.71ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 32.7MB in the beginning and 61.8MB in the end (delta: -29.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-18 20:53:03,099 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 111.1MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:53:03,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 75.5MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.48ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 46.3MB in the end (delta: 11.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.52ms. Allocated memory is still 75.5MB. Free memory was 46.3MB in the beginning and 43.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.58ms. Allocated memory is still 75.5MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1294.83ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 33.3MB in the end (delta: 8.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15594.71ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 32.7MB in the beginning and 61.8MB in the end (delta: -29.1MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 111.1MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 111 PlacesBefore, 33 PlacesAfterwards, 106 TransitionsBefore, 27 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 107 TotalNumberOfCompositions, 3705 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2272, independent: 2137, independent conditional: 0, independent unconditional: 2137, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1021, independent: 977, independent conditional: 0, independent unconditional: 977, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1021, independent: 962, independent conditional: 0, independent unconditional: 962, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 627, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 594, dependent conditional: 0, dependent unconditional: 594, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2272, independent: 1160, independent conditional: 0, independent unconditional: 1160, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 1021, unknown conditional: 0, unknown unconditional: 1021] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L731] 0 int y$w_buff0; [L733] 0 int y$w_buff1; [L710] 0 int __unbuffered_p0_EAX = 0; [L725] 0 _Bool y$r_buff0_thd2; [L722] 0 int y$mem_tmp; [L712] 0 int __unbuffered_p1_EAX = 0; [L723] 0 _Bool y$r_buff0_thd0; [L724] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$read_delayed; [L708] 0 int __unbuffered_cnt = 0; [L721] 0 _Bool y$flush_delayed; [L734] 0 _Bool y$w_buff1_used; [L716] 0 _Bool main$tmp_guard1; [L715] 0 _Bool main$tmp_guard0; [L714] 0 int __unbuffered_p1_EBX = 0; [L730] 0 int *y$read_delayed_var; [L732] 0 _Bool y$w_buff0_used; [L718] 0 int x = 0; [L726] 0 _Bool y$r_buff1_thd0; [L720] 0 int y = 0; [L728] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd1; [L812] 0 pthread_t t305; [L813] FCALL, FORK 0 pthread_create(&t305, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t305, ((void *)0), P0, ((void *)0))=0, t305={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L814] 0 pthread_t t306; [L740] 1 y$w_buff1 = y$w_buff0 [L741] 1 y$w_buff0 = 1 [L742] 1 y$w_buff1_used = y$w_buff0_used [L743] 1 y$w_buff0_used = (_Bool)1 [L744] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L744] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L745] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L746] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L747] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] FCALL, FORK 0 pthread_create(&t306, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t306, ((void *)0), P1, ((void *)0))=1, t305={3:0}, t306={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L774] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L775] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L776] 2 y$flush_delayed = weak$$choice2 [L777] 2 y$mem_tmp = y [L778] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L779] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L780] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L781] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L782] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L784] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L785] 2 __unbuffered_p1_EBX = y [L786] 2 y = y$flush_delayed ? y$mem_tmp : y [L787] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L790] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L791] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L792] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L793] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L794] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L797] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 2 return 0; [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L817] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t305={3:0}, t306={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L819] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L819] RET 0 assume_abort_if_not(main$tmp_guard0) [L821] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t305={3:0}, t306={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L828] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L830] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 810]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 815]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 125 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 15.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 17 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 14 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 14 QuantifiedInterpolants, 450 SizeOfPredicates, 11 NumberOfNonLiveVariables, 541 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:53:03,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a58ec42-62bb-4c5f-a600-d255eae30f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample