./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/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_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --- 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 20:55:21,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:55:21,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:55:21,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:55:21,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:55:21,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:55:21,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:55:21,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:55:21,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:55:21,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:55:21,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:55:21,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:55:21,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:55:21,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:55:21,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:55:21,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:55:21,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:55:21,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:55:21,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:55:21,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:55:21,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:55:21,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:55:21,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:55:21,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:55:21,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:55:21,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:55:21,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:55:21,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:55:21,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:55:21,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:55:21,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:55:21,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:55:21,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:55:21,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:55:21,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:55:21,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:55:21,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:55:21,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:55:21,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:55:21,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:55:21,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:55:21,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:55:21,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:55:21,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:55:21,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:55:21,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:55:21,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:55:21,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:55:21,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:55:21,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:55:21,973 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:55:21,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:55:21,974 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:55:21,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:55:21,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:55:21,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:55:21,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:55:21,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:55:21,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:55:21,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:55:21,976 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:55:21,976 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:55:21,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:55:21,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:55:21,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:55:21,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:55:21,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:55:21,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:55:21,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:21,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:55:21,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:55:21,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:55:21,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:55:21,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:55:21,981 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:55:21,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:55:21,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:55:21,982 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_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 [2022-11-18 20:55:22,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:55:22,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:55:22,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:55:22,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:55:22,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:55:22,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-18 20:55:22,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/data/20a1e9c4b/9e49e9d4feb54a84a1b5ea4d89705d01/FLAGc68f6242c [2022-11-18 20:55:23,157 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:55:23,163 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/sv-benchmarks/c/goblint-regression/09-regions_16-arrayloop_rc.i [2022-11-18 20:55:23,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/data/20a1e9c4b/9e49e9d4feb54a84a1b5ea4d89705d01/FLAGc68f6242c [2022-11-18 20:55:23,364 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/data/20a1e9c4b/9e49e9d4feb54a84a1b5ea4d89705d01 [2022-11-18 20:55:23,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:55:23,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:55:23,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:23,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:55:23,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:55:23,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:23" (1/1) ... [2022-11-18 20:55:23,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df12a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:23, skipping insertion in model container [2022-11-18 20:55:23,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:55:23" (1/1) ... [2022-11-18 20:55:23,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:55:23,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:55:24,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:24,244 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:55:24,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:55:24,431 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:55:24,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24 WrapperNode [2022-11-18 20:55:24,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:55:24,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:24,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:55:24,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:55:24,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,520 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2022-11-18 20:55:24,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:55:24,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:55:24,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:55:24,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:55:24,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:55:24,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:55:24,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:55:24,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:55:24,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (1/1) ... [2022-11-18 20:55:24,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:55:24,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:24,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:55:24,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:55:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:55:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:55:24,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:55:24,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:55:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:55:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:55:24,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:55:24,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:55:24,719 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 20:55:24,931 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:55:24,933 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:55:25,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:55:25,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:55:25,788 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 20:55:25,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:25 BoogieIcfgContainer [2022-11-18 20:55:25,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:55:25,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:55:25,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:55:25,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:55:25,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:55:23" (1/3) ... [2022-11-18 20:55:25,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5855996f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:25, skipping insertion in model container [2022-11-18 20:55:25,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:55:24" (2/3) ... [2022-11-18 20:55:25,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5855996f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:55:25, skipping insertion in model container [2022-11-18 20:55:25,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:55:25" (3/3) ... [2022-11-18 20:55:25,801 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2022-11-18 20:55:25,810 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:55:25,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:55:25,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 20:55:25,822 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:55:25,916 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:55:25,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 269 transitions, 543 flow [2022-11-18 20:55:26,155 INFO L130 PetriNetUnfolder]: 6/268 cut-off events. [2022-11-18 20:55:26,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:55:26,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 268 events. 6/268 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 428 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2022-11-18 20:55:26,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 269 transitions, 543 flow [2022-11-18 20:55:26,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 268 transitions, 539 flow [2022-11-18 20:55:26,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:55:26,196 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5bc35900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:55:26,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 20:55:26,211 INFO L130 PetriNetUnfolder]: 3/74 cut-off events. [2022-11-18 20:55:26,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:55:26,212 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:26,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:26,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:26,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash -41811968, now seen corresponding path program 1 times [2022-11-18 20:55:26,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:26,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864788217] [2022-11-18 20:55:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:26,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:27,192 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 20:55:27,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:27,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864788217] [2022-11-18 20:55:27,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864788217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:27,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:27,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221457606] [2022-11-18 20:55:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:27,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:27,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:27,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:27,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-18 20:55:27,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 268 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states 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 20:55:27,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:27,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-18 20:55:27,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:30,108 INFO L130 PetriNetUnfolder]: 2475/7972 cut-off events. [2022-11-18 20:55:30,109 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:55:30,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12946 conditions, 7972 events. 2475/7972 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 62573 event pairs, 1992 based on Foata normal form. 196/7307 useless extension candidates. Maximal degree in co-relation 12850. Up to 4684 conditions per place. [2022-11-18 20:55:30,156 INFO L137 encePairwiseOnDemand]: 229/269 looper letters, 164 selfloop transitions, 107 changer transitions 0/413 dead transitions. [2022-11-18 20:55:30,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 413 transitions, 1371 flow [2022-11-18 20:55:30,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2022-11-18 20:55:30,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7050805452292441 [2022-11-18 20:55:30,179 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2022-11-18 20:55:30,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2022-11-18 20:55:30,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:30,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2022-11-18 20:55:30,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states 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 20:55:30,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:30,204 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:30,206 INFO L175 Difference]: Start difference. First operand has 266 places, 268 transitions, 539 flow. Second operand 6 states and 1138 transitions. [2022-11-18 20:55:30,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 413 transitions, 1371 flow [2022-11-18 20:55:30,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 413 transitions, 1370 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:30,223 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 1220 flow [2022-11-18 20:55:30,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1220, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2022-11-18 20:55:30,230 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 8 predicate places. [2022-11-18 20:55:30,231 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 1220 flow [2022-11-18 20:55:30,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states 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 20:55:30,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:30,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:30,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:55:30,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2070844974, now seen corresponding path program 1 times [2022-11-18 20:55:30,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:30,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360832128] [2022-11-18 20:55:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:30,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:30,699 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 20:55:30,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:30,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360832128] [2022-11-18 20:55:30,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360832128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:30,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:30,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:30,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022847249] [2022-11-18 20:55:30,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:30,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:30,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:30,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:30,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 269 [2022-11-18 20:55:30,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 1220 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states 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 20:55:30,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:30,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 269 [2022-11-18 20:55:30,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:33,332 INFO L130 PetriNetUnfolder]: 2669/8636 cut-off events. [2022-11-18 20:55:33,332 INFO L131 PetriNetUnfolder]: For 1695/1697 co-relation queries the response was YES. [2022-11-18 20:55:33,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16546 conditions, 8636 events. 2669/8636 cut-off events. For 1695/1697 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 69042 event pairs, 1874 based on Foata normal form. 0/7768 useless extension candidates. Maximal degree in co-relation 16438. Up to 5042 conditions per place. [2022-11-18 20:55:33,398 INFO L137 encePairwiseOnDemand]: 232/269 looper letters, 263 selfloop transitions, 107 changer transitions 0/513 dead transitions. [2022-11-18 20:55:33,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 513 transitions, 2448 flow [2022-11-18 20:55:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:33,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1130 transitions. [2022-11-18 20:55:33,403 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7001239157372986 [2022-11-18 20:55:33,404 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1130 transitions. [2022-11-18 20:55:33,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1130 transitions. [2022-11-18 20:55:33,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:33,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1130 transitions. [2022-11-18 20:55:33,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states 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 20:55:33,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:33,415 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:33,415 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 1220 flow. Second operand 6 states and 1130 transitions. [2022-11-18 20:55:33,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 513 transitions, 2448 flow [2022-11-18 20:55:33,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 513 transitions, 2448 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:33,439 INFO L231 Difference]: Finished difference. Result has 283 places, 465 transitions, 2100 flow [2022-11-18 20:55:33,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2100, PETRI_PLACES=283, PETRI_TRANSITIONS=465} [2022-11-18 20:55:33,441 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 17 predicate places. [2022-11-18 20:55:33,442 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 465 transitions, 2100 flow [2022-11-18 20:55:33,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states 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 20:55:33,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:33,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:33,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:55:33,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2131369800, now seen corresponding path program 1 times [2022-11-18 20:55:33,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:33,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691410247] [2022-11-18 20:55:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:33,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:33,512 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 20:55:33,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:33,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691410247] [2022-11-18 20:55:33,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691410247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:33,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:33,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:55:33,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696871387] [2022-11-18 20:55:33,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:33,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:55:33,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:55:33,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:55:33,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 269 [2022-11-18 20:55:33,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 465 transitions, 2100 flow. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states 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 20:55:33,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:33,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 269 [2022-11-18 20:55:33,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:34,806 INFO L130 PetriNetUnfolder]: 1071/4163 cut-off events. [2022-11-18 20:55:34,806 INFO L131 PetriNetUnfolder]: For 1148/1160 co-relation queries the response was YES. [2022-11-18 20:55:34,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8530 conditions, 4163 events. 1071/4163 cut-off events. For 1148/1160 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26621 event pairs, 96 based on Foata normal form. 0/3924 useless extension candidates. Maximal degree in co-relation 8341. Up to 1144 conditions per place. [2022-11-18 20:55:34,843 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 67 selfloop transitions, 4 changer transitions 0/497 dead transitions. [2022-11-18 20:55:34,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 497 transitions, 2306 flow [2022-11-18 20:55:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:55:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:55:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2022-11-18 20:55:34,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9343246592317225 [2022-11-18 20:55:34,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2022-11-18 20:55:34,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2022-11-18 20:55:34,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:34,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2022-11-18 20:55:34,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states 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 20:55:34,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states 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 20:55:34,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states 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 20:55:34,853 INFO L175 Difference]: Start difference. First operand has 283 places, 465 transitions, 2100 flow. Second operand 3 states and 754 transitions. [2022-11-18 20:55:34,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 497 transitions, 2306 flow [2022-11-18 20:55:34,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 497 transitions, 2114 flow, removed 96 selfloop flow, removed 0 redundant places. [2022-11-18 20:55:34,879 INFO L231 Difference]: Finished difference. Result has 286 places, 467 transitions, 1932 flow [2022-11-18 20:55:34,879 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1908, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1932, PETRI_PLACES=286, PETRI_TRANSITIONS=467} [2022-11-18 20:55:34,880 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 20 predicate places. [2022-11-18 20:55:34,881 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 467 transitions, 1932 flow [2022-11-18 20:55:34,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states 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 20:55:34,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:34,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:34,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:55:34,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:34,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1146894362, now seen corresponding path program 1 times [2022-11-18 20:55:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:34,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388864111] [2022-11-18 20:55:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:34,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:35,391 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 20:55:35,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:35,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388864111] [2022-11-18 20:55:35,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388864111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:35,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:55:35,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:55:35,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869744653] [2022-11-18 20:55:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:35,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:35,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:35,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:35,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:55:35,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2022-11-18 20:55:35,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 467 transitions, 1932 flow. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:35,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:35,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2022-11-18 20:55:35,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:40,074 INFO L130 PetriNetUnfolder]: 5581/16318 cut-off events. [2022-11-18 20:55:40,074 INFO L131 PetriNetUnfolder]: For 9465/9491 co-relation queries the response was YES. [2022-11-18 20:55:40,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37715 conditions, 16318 events. 5581/16318 cut-off events. For 9465/9491 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 130900 event pairs, 4152 based on Foata normal form. 0/14771 useless extension candidates. Maximal degree in co-relation 37497. Up to 11069 conditions per place. [2022-11-18 20:55:40,175 INFO L137 encePairwiseOnDemand]: 263/269 looper letters, 328 selfloop transitions, 5 changer transitions 0/466 dead transitions. [2022-11-18 20:55:40,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 466 transitions, 2596 flow [2022-11-18 20:55:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:55:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:55:40,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 924 transitions. [2022-11-18 20:55:40,179 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5724907063197026 [2022-11-18 20:55:40,179 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 924 transitions. [2022-11-18 20:55:40,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 924 transitions. [2022-11-18 20:55:40,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:40,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 924 transitions. [2022-11-18 20:55:40,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.0) internal successors, (924), 6 states have internal predecessors, (924), 0 states have call successors, (0), 0 states 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 20:55:40,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:40,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:55:40,194 INFO L175 Difference]: Start difference. First operand has 286 places, 467 transitions, 1932 flow. Second operand 6 states and 924 transitions. [2022-11-18 20:55:40,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 466 transitions, 2596 flow [2022-11-18 20:55:40,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 466 transitions, 2592 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:40,221 INFO L231 Difference]: Finished difference. Result has 289 places, 466 transitions, 1936 flow [2022-11-18 20:55:40,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1936, PETRI_PLACES=289, PETRI_TRANSITIONS=466} [2022-11-18 20:55:40,223 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 23 predicate places. [2022-11-18 20:55:40,224 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 466 transitions, 1936 flow [2022-11-18 20:55:40,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:55:40,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:40,231 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:40,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:55:40,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:40,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1510380861, now seen corresponding path program 1 times [2022-11-18 20:55:40,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:40,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604194862] [2022-11-18 20:55:40,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:40,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:40,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604194862] [2022-11-18 20:55:40,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604194862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:40,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125733241] [2022-11-18 20:55:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:40,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:40,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:40,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:40,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:55:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:40,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:55:40,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:40,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:40,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:40,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125733241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:40,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:40,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:55:40,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939365481] [2022-11-18 20:55:40,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:40,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:55:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:40,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:55:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:55:40,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-18 20:55:40,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 466 transitions, 1936 flow. Second operand has 10 states, 10 states have (on average 230.3) internal successors, (2303), 10 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states 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 20:55:40,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:40,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-18 20:55:40,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:42,350 INFO L130 PetriNetUnfolder]: 1071/4204 cut-off events. [2022-11-18 20:55:42,350 INFO L131 PetriNetUnfolder]: For 689/701 co-relation queries the response was YES. [2022-11-18 20:55:42,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8383 conditions, 4204 events. 1071/4204 cut-off events. For 689/701 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 26426 event pairs, 96 based on Foata normal form. 2/3972 useless extension candidates. Maximal degree in co-relation 8117. Up to 900 conditions per place. [2022-11-18 20:55:42,372 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 71 selfloop transitions, 13 changer transitions 0/509 dead transitions. [2022-11-18 20:55:42,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 509 transitions, 2208 flow [2022-11-18 20:55:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:55:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:55:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2120 transitions. [2022-11-18 20:55:42,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.875671210243701 [2022-11-18 20:55:42,378 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2120 transitions. [2022-11-18 20:55:42,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2120 transitions. [2022-11-18 20:55:42,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:42,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2120 transitions. [2022-11-18 20:55:42,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 235.55555555555554) internal successors, (2120), 9 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states 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 20:55:42,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 20:55:42,391 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 20:55:42,391 INFO L175 Difference]: Start difference. First operand has 289 places, 466 transitions, 1936 flow. Second operand 9 states and 2120 transitions. [2022-11-18 20:55:42,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 509 transitions, 2208 flow [2022-11-18 20:55:42,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 509 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:55:42,411 INFO L231 Difference]: Finished difference. Result has 295 places, 473 transitions, 1994 flow [2022-11-18 20:55:42,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1994, PETRI_PLACES=295, PETRI_TRANSITIONS=473} [2022-11-18 20:55:42,413 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 29 predicate places. [2022-11-18 20:55:42,413 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 473 transitions, 1994 flow [2022-11-18 20:55:42,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 230.3) internal successors, (2303), 10 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states 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 20:55:42,414 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:42,415 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:42,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:55:42,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:42,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash -139054691, now seen corresponding path program 2 times [2022-11-18 20:55:42,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:42,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975292947] [2022-11-18 20:55:42,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:42,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:43,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:43,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975292947] [2022-11-18 20:55:43,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975292947] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:43,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105837458] [2022-11-18 20:55:43,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:55:43,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:43,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:43,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:43,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:55:43,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:55:43,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:43,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:55:43,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:43,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:55:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 20:55:43,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:43,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:55:43,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:43,630 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:43,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:55:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-18 20:55:43,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:43,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105837458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:43,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:43,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2022-11-18 20:55:43,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028199914] [2022-11-18 20:55:43,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:43,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:55:43,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:43,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:55:43,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:55:43,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 269 [2022-11-18 20:55:43,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 473 transitions, 1994 flow. Second operand has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states 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 20:55:43,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:43,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 269 [2022-11-18 20:55:43,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:49,581 INFO L130 PetriNetUnfolder]: 6471/18504 cut-off events. [2022-11-18 20:55:49,581 INFO L131 PetriNetUnfolder]: For 5156/5338 co-relation queries the response was YES. [2022-11-18 20:55:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41957 conditions, 18504 events. 6471/18504 cut-off events. For 5156/5338 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 152025 event pairs, 459 based on Foata normal form. 0/16832 useless extension candidates. Maximal degree in co-relation 41668. Up to 10982 conditions per place. [2022-11-18 20:55:49,672 INFO L137 encePairwiseOnDemand]: 222/269 looper letters, 563 selfloop transitions, 174 changer transitions 0/895 dead transitions. [2022-11-18 20:55:49,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 895 transitions, 4684 flow [2022-11-18 20:55:49,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:55:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:55:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1832 transitions. [2022-11-18 20:55:49,679 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7567121024370095 [2022-11-18 20:55:49,679 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1832 transitions. [2022-11-18 20:55:49,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1832 transitions. [2022-11-18 20:55:49,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:49,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1832 transitions. [2022-11-18 20:55:49,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 203.55555555555554) internal successors, (1832), 9 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states 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 20:55:49,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 20:55:49,692 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states 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 20:55:49,693 INFO L175 Difference]: Start difference. First operand has 295 places, 473 transitions, 1994 flow. Second operand 9 states and 1832 transitions. [2022-11-18 20:55:49,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 895 transitions, 4684 flow [2022-11-18 20:55:49,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 895 transitions, 4674 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-18 20:55:49,732 INFO L231 Difference]: Finished difference. Result has 307 places, 635 transitions, 3464 flow [2022-11-18 20:55:49,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1984, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3464, PETRI_PLACES=307, PETRI_TRANSITIONS=635} [2022-11-18 20:55:49,734 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 41 predicate places. [2022-11-18 20:55:49,734 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 635 transitions, 3464 flow [2022-11-18 20:55:49,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 151.375) internal successors, (1211), 8 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states 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 20:55:49,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:49,736 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:49,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:49,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:55:49,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:49,944 INFO L85 PathProgramCache]: Analyzing trace with hash -790940254, now seen corresponding path program 1 times [2022-11-18 20:55:49,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:49,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299907239] [2022-11-18 20:55:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:49,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:50,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299907239] [2022-11-18 20:55:50,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299907239] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:50,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278853689] [2022-11-18 20:55:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:50,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:50,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:50,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:50,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:55:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:50,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:55:50,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:51,070 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:51,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:51,415 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:51,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278853689] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:55:51,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:55:51,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:55:51,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872683498] [2022-11-18 20:55:51,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:51,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:55:51,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:55:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:55:51,427 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-18 20:55:51,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 635 transitions, 3464 flow. Second operand has 18 states, 18 states have (on average 231.05555555555554) internal successors, (4159), 18 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states 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 20:55:51,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:51,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-18 20:55:51,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:55:54,629 INFO L130 PetriNetUnfolder]: 2012/6926 cut-off events. [2022-11-18 20:55:54,630 INFO L131 PetriNetUnfolder]: For 9080/9176 co-relation queries the response was YES. [2022-11-18 20:55:54,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19743 conditions, 6926 events. 2012/6926 cut-off events. For 9080/9176 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 46918 event pairs, 174 based on Foata normal form. 4/6568 useless extension candidates. Maximal degree in co-relation 19139. Up to 1697 conditions per place. [2022-11-18 20:55:54,681 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 171 selfloop transitions, 25 changer transitions 0/751 dead transitions. [2022-11-18 20:55:54,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 751 transitions, 4332 flow [2022-11-18 20:55:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:55:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:55:54,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4882 transitions. [2022-11-18 20:55:54,693 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.864223756417065 [2022-11-18 20:55:54,693 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4882 transitions. [2022-11-18 20:55:54,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4882 transitions. [2022-11-18 20:55:54,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:55:54,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4882 transitions. [2022-11-18 20:55:54,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 232.47619047619048) internal successors, (4882), 21 states have internal predecessors, (4882), 0 states have call successors, (0), 0 states 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 20:55:54,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 0 states have call successors, (0), 0 states 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 20:55:54,724 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 269.0) internal successors, (5918), 22 states have internal predecessors, (5918), 0 states have call successors, (0), 0 states 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 20:55:54,724 INFO L175 Difference]: Start difference. First operand has 307 places, 635 transitions, 3464 flow. Second operand 21 states and 4882 transitions. [2022-11-18 20:55:54,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 751 transitions, 4332 flow [2022-11-18 20:55:54,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 751 transitions, 4290 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-11-18 20:55:54,777 INFO L231 Difference]: Finished difference. Result has 329 places, 648 transitions, 3566 flow [2022-11-18 20:55:54,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3566, PETRI_PLACES=329, PETRI_TRANSITIONS=648} [2022-11-18 20:55:54,778 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 63 predicate places. [2022-11-18 20:55:54,778 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 648 transitions, 3566 flow [2022-11-18 20:55:54,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 231.05555555555554) internal successors, (4159), 18 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states 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 20:55:54,798 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:55:54,799 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:54,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:55,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:55,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:55:55,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash -571759006, now seen corresponding path program 2 times [2022-11-18 20:55:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:55,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524245819] [2022-11-18 20:55:55,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:55,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:55:56,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:56,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524245819] [2022-11-18 20:55:56,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524245819] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:56,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802909147] [2022-11-18 20:55:56,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:55:56,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:56,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:56,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:56,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:55:56,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:55:56,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:56,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:55:56,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:56,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:55:56,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-18 20:55:56,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:56,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-18 20:55:56,744 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:55:56,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-11-18 20:55:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-18 20:55:56,783 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:56,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802909147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:56,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:56,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:55:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827861472] [2022-11-18 20:55:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:56,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:55:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:55:56,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:55:56,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 269 [2022-11-18 20:55:56,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 648 transitions, 3566 flow. Second operand has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 20:55:56,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:55:56,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 269 [2022-11-18 20:55:56,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:05,556 INFO L130 PetriNetUnfolder]: 6860/20083 cut-off events. [2022-11-18 20:56:05,556 INFO L131 PetriNetUnfolder]: For 34012/34098 co-relation queries the response was YES. [2022-11-18 20:56:05,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63608 conditions, 20083 events. 6860/20083 cut-off events. For 34012/34098 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 163442 event pairs, 3402 based on Foata normal form. 0/18553 useless extension candidates. Maximal degree in co-relation 62947. Up to 12645 conditions per place. [2022-11-18 20:56:05,704 INFO L137 encePairwiseOnDemand]: 226/269 looper letters, 539 selfloop transitions, 170 changer transitions 0/883 dead transitions. [2022-11-18 20:56:05,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 883 transitions, 6810 flow [2022-11-18 20:56:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:56:05,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:56:05,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2022-11-18 20:56:05,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.765179677819083 [2022-11-18 20:56:05,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1235 transitions. [2022-11-18 20:56:05,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1235 transitions. [2022-11-18 20:56:05,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:05,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1235 transitions. [2022-11-18 20:56:05,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states 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 20:56:05,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:56:05,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 269.0) internal successors, (1883), 7 states have internal predecessors, (1883), 0 states have call successors, (0), 0 states 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 20:56:05,736 INFO L175 Difference]: Start difference. First operand has 329 places, 648 transitions, 3566 flow. Second operand 6 states and 1235 transitions. [2022-11-18 20:56:05,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 883 transitions, 6810 flow [2022-11-18 20:56:05,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 883 transitions, 6784 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:56:05,849 INFO L231 Difference]: Finished difference. Result has 333 places, 809 transitions, 5954 flow [2022-11-18 20:56:05,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3540, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5954, PETRI_PLACES=333, PETRI_TRANSITIONS=809} [2022-11-18 20:56:05,855 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 67 predicate places. [2022-11-18 20:56:05,855 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 809 transitions, 5954 flow [2022-11-18 20:56:05,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.16666666666666) internal successors, (931), 6 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 20:56:05,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:05,856 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:05,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:56:06,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:56:06,063 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1665642880, now seen corresponding path program 1 times [2022-11-18 20:56:06,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:06,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908462961] [2022-11-18 20:56:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:07,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908462961] [2022-11-18 20:56:07,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908462961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:56:07,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033095746] [2022-11-18 20:56:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:07,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:56:07,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:56:07,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:56:07,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:56:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:08,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:56:08,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:56:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:08,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:56:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:56:09,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033095746] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:56:09,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:56:09,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:56:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737514126] [2022-11-18 20:56:09,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:56:09,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:56:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:09,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:56:09,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:56:09,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 269 [2022-11-18 20:56:09,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 809 transitions, 5954 flow. Second operand has 23 states, 23 states have (on average 231.69565217391303) internal successors, (5329), 23 states have internal predecessors, (5329), 0 states have call successors, (0), 0 states 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 20:56:09,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:09,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 269 [2022-11-18 20:56:09,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:13,735 INFO L130 PetriNetUnfolder]: 2734/9296 cut-off events. [2022-11-18 20:56:13,735 INFO L131 PetriNetUnfolder]: For 21627/24094 co-relation queries the response was YES. [2022-11-18 20:56:13,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30551 conditions, 9296 events. 2734/9296 cut-off events. For 21627/24094 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 66481 event pairs, 230 based on Foata normal form. 3/8885 useless extension candidates. Maximal degree in co-relation 29661. Up to 2462 conditions per place. [2022-11-18 20:56:13,791 INFO L137 encePairwiseOnDemand]: 260/269 looper letters, 262 selfloop transitions, 34 changer transitions 0/980 dead transitions. [2022-11-18 20:56:13,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 980 transitions, 7568 flow [2022-11-18 20:56:13,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:56:13,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:56:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 6951 transitions. [2022-11-18 20:56:13,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8613382899628252 [2022-11-18 20:56:13,811 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 6951 transitions. [2022-11-18 20:56:13,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 6951 transitions. [2022-11-18 20:56:13,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:13,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 6951 transitions. [2022-11-18 20:56:13,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 231.7) internal successors, (6951), 30 states have internal predecessors, (6951), 0 states have call successors, (0), 0 states 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 20:56:13,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 20:56:13,852 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 20:56:13,852 INFO L175 Difference]: Start difference. First operand has 333 places, 809 transitions, 5954 flow. Second operand 30 states and 6951 transitions. [2022-11-18 20:56:13,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 980 transitions, 7568 flow [2022-11-18 20:56:13,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 980 transitions, 6112 flow, removed 728 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:13,953 INFO L231 Difference]: Finished difference. Result has 366 places, 819 transitions, 4920 flow [2022-11-18 20:56:13,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4754, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=809, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=782, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4920, PETRI_PLACES=366, PETRI_TRANSITIONS=819} [2022-11-18 20:56:13,955 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 100 predicate places. [2022-11-18 20:56:13,955 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 819 transitions, 4920 flow [2022-11-18 20:56:13,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 231.69565217391303) internal successors, (5329), 23 states have internal predecessors, (5329), 0 states have call successors, (0), 0 states 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 20:56:13,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:13,958 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:13,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:56:14,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1260a02c-58c3-4c9e-8f88-5f2b50fec6eb/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:56:14,172 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1541595771, now seen corresponding path program 2 times [2022-11-18 20:56:14,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:14,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859029522] [2022-11-18 20:56:14,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-18 20:56:17,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:17,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859029522] [2022-11-18 20:56:17,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859029522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:17,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:17,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:56:17,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650264421] [2022-11-18 20:56:17,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:17,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:56:17,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:17,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:56:17,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:56:17,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-18 20:56:17,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 819 transitions, 4920 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 20:56:17,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:17,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-18 20:56:17,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:29,971 INFO L130 PetriNetUnfolder]: 7942/22885 cut-off events. [2022-11-18 20:56:29,972 INFO L131 PetriNetUnfolder]: For 60319/60395 co-relation queries the response was YES. [2022-11-18 20:56:30,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76568 conditions, 22885 events. 7942/22885 cut-off events. For 60319/60395 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 189095 event pairs, 517 based on Foata normal form. 24/21360 useless extension candidates. Maximal degree in co-relation 75532. Up to 13334 conditions per place. [2022-11-18 20:56:30,116 INFO L137 encePairwiseOnDemand]: 218/269 looper letters, 865 selfloop transitions, 193 changer transitions 0/1221 dead transitions. [2022-11-18 20:56:30,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1221 transitions, 9584 flow [2022-11-18 20:56:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:56:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:56:30,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2319 transitions. [2022-11-18 20:56:30,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6631398341435516 [2022-11-18 20:56:30,132 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2319 transitions. [2022-11-18 20:56:30,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2319 transitions. [2022-11-18 20:56:30,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:30,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2319 transitions. [2022-11-18 20:56:30,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 178.3846153846154) internal successors, (2319), 13 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states 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 20:56:30,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states 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 20:56:30,149 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states 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 20:56:30,149 INFO L175 Difference]: Start difference. First operand has 366 places, 819 transitions, 4920 flow. Second operand 13 states and 2319 transitions. [2022-11-18 20:56:30,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1221 transitions, 9584 flow [2022-11-18 20:56:30,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 1221 transitions, 9536 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:56:30,308 INFO L231 Difference]: Finished difference. Result has 371 places, 854 transitions, 5900 flow [2022-11-18 20:56:30,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4872, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5900, PETRI_PLACES=371, PETRI_TRANSITIONS=854} [2022-11-18 20:56:30,310 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 105 predicate places. [2022-11-18 20:56:30,311 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 854 transitions, 5900 flow [2022-11-18 20:56:30,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 20:56:30,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:30,312 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:30,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:56:30,312 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2064029275, now seen corresponding path program 3 times [2022-11-18 20:56:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:30,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198289121] [2022-11-18 20:56:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:30,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:56:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1855 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked. [2022-11-18 20:56:33,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:56:33,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198289121] [2022-11-18 20:56:33,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198289121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:56:33,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:56:33,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:56:33,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806841415] [2022-11-18 20:56:33,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:56:33,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:56:33,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:56:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:56:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:56:33,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 269 [2022-11-18 20:56:33,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 854 transitions, 5900 flow. Second operand has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 20:56:33,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:56:33,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 269 [2022-11-18 20:56:33,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:56:56,056 INFO L130 PetriNetUnfolder]: 15141/42947 cut-off events. [2022-11-18 20:56:56,056 INFO L131 PetriNetUnfolder]: For 117987/118271 co-relation queries the response was YES. [2022-11-18 20:56:56,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154415 conditions, 42947 events. 15141/42947 cut-off events. For 117987/118271 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 402931 event pairs, 1907 based on Foata normal form. 79/40020 useless extension candidates. Maximal degree in co-relation 153391. Up to 14540 conditions per place. [2022-11-18 20:56:56,391 INFO L137 encePairwiseOnDemand]: 213/269 looper letters, 1645 selfloop transitions, 303 changer transitions 0/2111 dead transitions. [2022-11-18 20:56:56,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 2111 transitions, 18997 flow [2022-11-18 20:56:56,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:56:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:56:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4771 transitions. [2022-11-18 20:56:56,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5912019826517968 [2022-11-18 20:56:56,400 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4771 transitions. [2022-11-18 20:56:56,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4771 transitions. [2022-11-18 20:56:56,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:56:56,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4771 transitions. [2022-11-18 20:56:56,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 159.03333333333333) internal successors, (4771), 30 states have internal predecessors, (4771), 0 states have call successors, (0), 0 states 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 20:56:56,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 20:56:56,424 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 269.0) internal successors, (8339), 31 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states 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 20:56:56,424 INFO L175 Difference]: Start difference. First operand has 371 places, 854 transitions, 5900 flow. Second operand 30 states and 4771 transitions. [2022-11-18 20:56:56,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 2111 transitions, 18997 flow [2022-11-18 20:56:56,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 2111 transitions, 18997 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:56:56,746 INFO L231 Difference]: Finished difference. Result has 424 places, 1124 transitions, 10021 flow [2022-11-18 20:56:56,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=5900, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=10021, PETRI_PLACES=424, PETRI_TRANSITIONS=1124} [2022-11-18 20:56:56,748 INFO L288 CegarLoopForPetriNet]: 266 programPoint places, 158 predicate places. [2022-11-18 20:56:56,748 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 1124 transitions, 10021 flow [2022-11-18 20:56:56,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 20:56:56,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:56:56,749 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:56:56,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:56:56,749 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 20:56:56,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:56:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1392301865, now seen corresponding path program 1 times [2022-11-18 20:56:56,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:56:56,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636158255] [2022-11-18 20:56:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:56:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:56:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat