./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8 --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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:34:59,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:34:59,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:34:59,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:34:59,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:34:59,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:34:59,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:34:59,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:34:59,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:34:59,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:34:59,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:34:59,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:34:59,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:34:59,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:34:59,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:34:59,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:34:59,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:34:59,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:34:59,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:34:59,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:34:59,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:34:59,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:34:59,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:34:59,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:34:59,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:34:59,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:34:59,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:34:59,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:34:59,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:34:59,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:34:59,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:34:59,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:34:59,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:34:59,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:34:59,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:34:59,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:34:59,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:34:59,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:34:59,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:34:59,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:34:59,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:34:59,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:34:59,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:34:59,783 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:34:59,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:34:59,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:34:59,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:34:59,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:34:59,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:34:59,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:34:59,785 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:34:59,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:34:59,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:34:59,786 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:34:59,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:34:59,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:34:59,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:34:59,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:34:59,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:34:59,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:34:59,788 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:34:59,788 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:34:59,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:34:59,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:34:59,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:34:59,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:34:59,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:34:59,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:34:59,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:34:59,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:34:59,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:34:59,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:34:59,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:34:59,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:34:59,791 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:34:59,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:34:59,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:34:59,791 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_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2022-11-16 12:35:00,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:00,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:00,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:00,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:00,100 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:00,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-16 12:35:00,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/data/e5bec9923/bf4c864727644a9fac32bb511b1be489/FLAG70e565e66 [2022-11-16 12:35:00,706 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:00,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-16 12:35:00,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/data/e5bec9923/bf4c864727644a9fac32bb511b1be489/FLAG70e565e66 [2022-11-16 12:35:00,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/data/e5bec9923/bf4c864727644a9fac32bb511b1be489 [2022-11-16 12:35:00,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:00,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:00,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:00,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:00,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:00,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:00" (1/1) ... [2022-11-16 12:35:00,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bcad88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:00, skipping insertion in model container [2022-11-16 12:35:00,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:00" (1/1) ... [2022-11-16 12:35:00,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:01,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:01,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:01,553 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:01,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:01,672 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:01,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01 WrapperNode [2022-11-16 12:35:01,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:01,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:01,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:01,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:01,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,747 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-16 12:35:01,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:01,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:01,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:01,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:01,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,782 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:01,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:01,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:01,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:01,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (1/1) ... [2022-11-16 12:35:01,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:01,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:01,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:01,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:35:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:35:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:35:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:01,885 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:35:02,029 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:02,031 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:02,293 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:02,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:02,311 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:35:02,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:02 BoogieIcfgContainer [2022-11-16 12:35:02,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:02,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:02,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:02,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:02,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:00" (1/3) ... [2022-11-16 12:35:02,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:02, skipping insertion in model container [2022-11-16 12:35:02,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:01" (2/3) ... [2022-11-16 12:35:02,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363a782c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:02, skipping insertion in model container [2022-11-16 12:35:02,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:02" (3/3) ... [2022-11-16 12:35:02,322 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2022-11-16 12:35:02,330 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:35:02,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:02,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:35:02,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:35:02,434 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:35:02,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 173 flow [2022-11-16 12:35:02,517 INFO L130 PetriNetUnfolder]: 1/83 cut-off events. [2022-11-16 12:35:02,517 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:35:02,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 1/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-16 12:35:02,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 84 transitions, 173 flow [2022-11-16 12:35:02,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 83 transitions, 169 flow [2022-11-16 12:35:02,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:02,541 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;@78a0bdc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:02,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 12:35:02,578 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2022-11-16 12:35:02,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:35:02,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:02,580 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] [2022-11-16 12:35:02,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:02,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1076326687, now seen corresponding path program 1 times [2022-11-16 12:35:02,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:02,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796342088] [2022-11-16 12:35:02,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:02,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:03,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:03,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796342088] [2022-11-16 12:35:03,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796342088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:03,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:03,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:35:03,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669277337] [2022-11-16 12:35:03,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:03,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:35:03,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:35:03,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:35:03,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 84 [2022-11-16 12:35:03,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:03,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:03,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 84 [2022-11-16 12:35:03,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:03,817 INFO L130 PetriNetUnfolder]: 91/363 cut-off events. [2022-11-16 12:35:03,817 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:35:03,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 363 events. 91/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1525 event pairs, 32 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 522. Up to 162 conditions per place. [2022-11-16 12:35:03,823 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 30 selfloop transitions, 22 changer transitions 4/112 dead transitions. [2022-11-16 12:35:03,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 112 transitions, 339 flow [2022-11-16 12:35:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:35:03,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:35:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2022-11-16 12:35:03,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-16 12:35:03,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 399 transitions. [2022-11-16 12:35:03,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 399 transitions. [2022-11-16 12:35:03,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:03,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 399 transitions. [2022-11-16 12:35:03,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:03,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:03,870 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:03,872 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 169 flow. Second operand 6 states and 399 transitions. [2022-11-16 12:35:03,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 112 transitions, 339 flow [2022-11-16 12:35:03,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 112 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:35:03,887 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 318 flow [2022-11-16 12:35:03,889 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=95, PETRI_TRANSITIONS=104} [2022-11-16 12:35:03,914 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2022-11-16 12:35:03,914 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 318 flow [2022-11-16 12:35:03,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:03,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:03,915 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] [2022-11-16 12:35:03,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:35:03,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:03,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1327139528, now seen corresponding path program 1 times [2022-11-16 12:35:03,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:03,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013712696] [2022-11-16 12:35:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:04,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:04,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013712696] [2022-11-16 12:35:04,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013712696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:04,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:04,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:35:04,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513202255] [2022-11-16 12:35:04,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:04,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:35:04,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:04,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:35:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:35:04,462 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 84 [2022-11-16 12:35:04,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:04,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:04,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 84 [2022-11-16 12:35:04,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:04,684 INFO L130 PetriNetUnfolder]: 124/434 cut-off events. [2022-11-16 12:35:04,685 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-16 12:35:04,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 434 events. 124/434 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1974 event pairs, 27 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 967. Up to 203 conditions per place. [2022-11-16 12:35:04,701 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 37 selfloop transitions, 26 changer transitions 11/140 dead transitions. [2022-11-16 12:35:04,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 140 transitions, 634 flow [2022-11-16 12:35:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:35:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:35:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2022-11-16 12:35:04,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-11-16 12:35:04,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2022-11-16 12:35:04,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2022-11-16 12:35:04,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:04,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2022-11-16 12:35:04,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:04,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:04,708 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:04,708 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 318 flow. Second operand 6 states and 444 transitions. [2022-11-16 12:35:04,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 140 transitions, 634 flow [2022-11-16 12:35:04,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 140 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:35:04,720 INFO L231 Difference]: Finished difference. Result has 105 places, 125 transitions, 542 flow [2022-11-16 12:35:04,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=105, PETRI_TRANSITIONS=125} [2022-11-16 12:35:04,722 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 19 predicate places. [2022-11-16 12:35:04,722 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 125 transitions, 542 flow [2022-11-16 12:35:04,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:04,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:04,723 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] [2022-11-16 12:35:04,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:35:04,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:04,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:04,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1992373555, now seen corresponding path program 1 times [2022-11-16 12:35:04,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:04,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967983229] [2022-11-16 12:35:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:04,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:05,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:05,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967983229] [2022-11-16 12:35:05,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967983229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:05,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:05,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:35:05,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164228631] [2022-11-16 12:35:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:05,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:35:05,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:35:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:35:05,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 84 [2022-11-16 12:35:05,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 125 transitions, 542 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:05,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:05,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 84 [2022-11-16 12:35:05,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:05,520 INFO L130 PetriNetUnfolder]: 97/505 cut-off events. [2022-11-16 12:35:05,521 INFO L131 PetriNetUnfolder]: For 349/370 co-relation queries the response was YES. [2022-11-16 12:35:05,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 505 events. 97/505 cut-off events. For 349/370 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2733 event pairs, 7 based on Foata normal form. 14/515 useless extension candidates. Maximal degree in co-relation 1039. Up to 107 conditions per place. [2022-11-16 12:35:05,524 INFO L137 encePairwiseOnDemand]: 77/84 looper letters, 48 selfloop transitions, 4 changer transitions 24/152 dead transitions. [2022-11-16 12:35:05,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 152 transitions, 818 flow [2022-11-16 12:35:05,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:35:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:35:05,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 445 transitions. [2022-11-16 12:35:05,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7568027210884354 [2022-11-16 12:35:05,527 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 445 transitions. [2022-11-16 12:35:05,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 445 transitions. [2022-11-16 12:35:05,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:05,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 445 transitions. [2022-11-16 12:35:05,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.57142857142857) internal successors, (445), 7 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:05,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:05,531 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:05,531 INFO L175 Difference]: Start difference. First operand has 105 places, 125 transitions, 542 flow. Second operand 7 states and 445 transitions. [2022-11-16 12:35:05,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 152 transitions, 818 flow [2022-11-16 12:35:05,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 152 transitions, 800 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:35:05,546 INFO L231 Difference]: Finished difference. Result has 114 places, 123 transitions, 534 flow [2022-11-16 12:35:05,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=534, PETRI_PLACES=114, PETRI_TRANSITIONS=123} [2022-11-16 12:35:05,549 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 28 predicate places. [2022-11-16 12:35:05,549 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 123 transitions, 534 flow [2022-11-16 12:35:05,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:05,550 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:05,550 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] [2022-11-16 12:35:05,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:35:05,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:05,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:05,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1561990480, now seen corresponding path program 1 times [2022-11-16 12:35:05,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:05,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851593338] [2022-11-16 12:35:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:05,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:06,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:06,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851593338] [2022-11-16 12:35:06,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851593338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:06,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:06,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421055481] [2022-11-16 12:35:06,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:06,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:06,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:06,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:06,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:06,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:06,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 123 transitions, 534 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:06,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:06,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:06,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:06,881 INFO L130 PetriNetUnfolder]: 181/598 cut-off events. [2022-11-16 12:35:06,882 INFO L131 PetriNetUnfolder]: For 377/382 co-relation queries the response was YES. [2022-11-16 12:35:06,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 598 events. 181/598 cut-off events. For 377/382 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3029 event pairs, 49 based on Foata normal form. 7/603 useless extension candidates. Maximal degree in co-relation 1697. Up to 269 conditions per place. [2022-11-16 12:35:06,888 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 74 selfloop transitions, 30 changer transitions 20/162 dead transitions. [2022-11-16 12:35:06,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 162 transitions, 932 flow [2022-11-16 12:35:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:06,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 570 transitions. [2022-11-16 12:35:06,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2022-11-16 12:35:06,890 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 570 transitions. [2022-11-16 12:35:06,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 570 transitions. [2022-11-16 12:35:06,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:06,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 570 transitions. [2022-11-16 12:35:06,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.5) internal successors, (570), 12 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:06,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:06,896 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:06,897 INFO L175 Difference]: Start difference. First operand has 114 places, 123 transitions, 534 flow. Second operand 12 states and 570 transitions. [2022-11-16 12:35:06,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 162 transitions, 932 flow [2022-11-16 12:35:06,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 162 transitions, 921 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-16 12:35:06,912 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 598 flow [2022-11-16 12:35:06,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=598, PETRI_PLACES=119, PETRI_TRANSITIONS=123} [2022-11-16 12:35:06,916 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 33 predicate places. [2022-11-16 12:35:06,916 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 123 transitions, 598 flow [2022-11-16 12:35:06,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:06,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:06,917 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] [2022-11-16 12:35:06,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:35:06,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:06,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:06,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1037099328, now seen corresponding path program 2 times [2022-11-16 12:35:06,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:06,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347086419] [2022-11-16 12:35:06,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:07,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:07,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347086419] [2022-11-16 12:35:07,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347086419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:07,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:07,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345528546] [2022-11-16 12:35:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:07,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:07,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:07,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:07,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:07,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:07,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 123 transitions, 598 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:07,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:07,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:07,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:08,036 INFO L130 PetriNetUnfolder]: 207/646 cut-off events. [2022-11-16 12:35:08,037 INFO L131 PetriNetUnfolder]: For 759/759 co-relation queries the response was YES. [2022-11-16 12:35:08,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 646 events. 207/646 cut-off events. For 759/759 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3294 event pairs, 8 based on Foata normal form. 11/655 useless extension candidates. Maximal degree in co-relation 2064. Up to 208 conditions per place. [2022-11-16 12:35:08,042 INFO L137 encePairwiseOnDemand]: 71/84 looper letters, 121 selfloop transitions, 32 changer transitions 17/208 dead transitions. [2022-11-16 12:35:08,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 208 transitions, 1487 flow [2022-11-16 12:35:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:35:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:35:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 645 transitions. [2022-11-16 12:35:08,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.548469387755102 [2022-11-16 12:35:08,045 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 645 transitions. [2022-11-16 12:35:08,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 645 transitions. [2022-11-16 12:35:08,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:08,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 645 transitions. [2022-11-16 12:35:08,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 46.07142857142857) internal successors, (645), 14 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:08,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:08,050 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:08,050 INFO L175 Difference]: Start difference. First operand has 119 places, 123 transitions, 598 flow. Second operand 14 states and 645 transitions. [2022-11-16 12:35:08,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 208 transitions, 1487 flow [2022-11-16 12:35:08,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 208 transitions, 1416 flow, removed 4 selfloop flow, removed 10 redundant places. [2022-11-16 12:35:08,065 INFO L231 Difference]: Finished difference. Result has 127 places, 143 transitions, 863 flow [2022-11-16 12:35:08,065 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=863, PETRI_PLACES=127, PETRI_TRANSITIONS=143} [2022-11-16 12:35:08,068 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 41 predicate places. [2022-11-16 12:35:08,068 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 143 transitions, 863 flow [2022-11-16 12:35:08,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:08,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:08,069 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] [2022-11-16 12:35:08,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:35:08,069 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash 729348682, now seen corresponding path program 3 times [2022-11-16 12:35:08,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:08,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105871278] [2022-11-16 12:35:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:08,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:08,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105871278] [2022-11-16 12:35:08,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105871278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:08,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:08,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:08,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623099794] [2022-11-16 12:35:08,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:08,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:08,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:08,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:08,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:08,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 143 transitions, 863 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:08,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:08,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:08,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:09,409 INFO L130 PetriNetUnfolder]: 205/676 cut-off events. [2022-11-16 12:35:09,409 INFO L131 PetriNetUnfolder]: For 1423/1425 co-relation queries the response was YES. [2022-11-16 12:35:09,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 676 events. 205/676 cut-off events. For 1423/1425 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3639 event pairs, 45 based on Foata normal form. 7/681 useless extension candidates. Maximal degree in co-relation 2414. Up to 316 conditions per place. [2022-11-16 12:35:09,415 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 92 selfloop transitions, 39 changer transitions 15/184 dead transitions. [2022-11-16 12:35:09,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 184 transitions, 1383 flow [2022-11-16 12:35:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 613 transitions. [2022-11-16 12:35:09,419 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5613553113553114 [2022-11-16 12:35:09,419 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 613 transitions. [2022-11-16 12:35:09,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 613 transitions. [2022-11-16 12:35:09,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:09,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 613 transitions. [2022-11-16 12:35:09,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.15384615384615) internal successors, (613), 13 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:09,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:09,428 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:09,428 INFO L175 Difference]: Start difference. First operand has 127 places, 143 transitions, 863 flow. Second operand 13 states and 613 transitions. [2022-11-16 12:35:09,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 184 transitions, 1383 flow [2022-11-16 12:35:09,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 184 transitions, 1349 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 12:35:09,450 INFO L231 Difference]: Finished difference. Result has 133 places, 147 transitions, 978 flow [2022-11-16 12:35:09,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=978, PETRI_PLACES=133, PETRI_TRANSITIONS=147} [2022-11-16 12:35:09,452 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 47 predicate places. [2022-11-16 12:35:09,452 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 147 transitions, 978 flow [2022-11-16 12:35:09,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:09,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:09,453 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] [2022-11-16 12:35:09,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:35:09,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1785874460, now seen corresponding path program 4 times [2022-11-16 12:35:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:09,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737126781] [2022-11-16 12:35:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:09,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:09,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737126781] [2022-11-16 12:35:09,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737126781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:09,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:09,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982962157] [2022-11-16 12:35:09,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:09,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:09,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:09,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:09,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:09,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 147 transitions, 978 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:09,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:09,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:09,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:10,692 INFO L130 PetriNetUnfolder]: 297/936 cut-off events. [2022-11-16 12:35:10,692 INFO L131 PetriNetUnfolder]: For 2756/2756 co-relation queries the response was YES. [2022-11-16 12:35:10,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 936 events. 297/936 cut-off events. For 2756/2756 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5624 event pairs, 33 based on Foata normal form. 11/945 useless extension candidates. Maximal degree in co-relation 3615. Up to 358 conditions per place. [2022-11-16 12:35:10,700 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 151 selfloop transitions, 54 changer transitions 16/259 dead transitions. [2022-11-16 12:35:10,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 259 transitions, 2352 flow [2022-11-16 12:35:10,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 617 transitions. [2022-11-16 12:35:10,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.565018315018315 [2022-11-16 12:35:10,703 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 617 transitions. [2022-11-16 12:35:10,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 617 transitions. [2022-11-16 12:35:10,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:10,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 617 transitions. [2022-11-16 12:35:10,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.46153846153846) internal successors, (617), 13 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:10,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:10,709 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:10,709 INFO L175 Difference]: Start difference. First operand has 133 places, 147 transitions, 978 flow. Second operand 13 states and 617 transitions. [2022-11-16 12:35:10,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 259 transitions, 2352 flow [2022-11-16 12:35:10,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 259 transitions, 2200 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-11-16 12:35:10,734 INFO L231 Difference]: Finished difference. Result has 141 places, 178 transitions, 1453 flow [2022-11-16 12:35:10,735 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1453, PETRI_PLACES=141, PETRI_TRANSITIONS=178} [2022-11-16 12:35:10,735 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-16 12:35:10,735 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 178 transitions, 1453 flow [2022-11-16 12:35:10,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:10,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:10,736 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] [2022-11-16 12:35:10,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:35:10,737 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:10,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash -207178100, now seen corresponding path program 5 times [2022-11-16 12:35:10,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:10,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636506788] [2022-11-16 12:35:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:10,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:11,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:11,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636506788] [2022-11-16 12:35:11,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636506788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:11,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:11,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:11,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103812695] [2022-11-16 12:35:11,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:11,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:11,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:11,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:11,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:11,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:11,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 178 transitions, 1453 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:11,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:11,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:11,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:11,915 INFO L130 PetriNetUnfolder]: 351/1112 cut-off events. [2022-11-16 12:35:11,915 INFO L131 PetriNetUnfolder]: For 4467/4469 co-relation queries the response was YES. [2022-11-16 12:35:11,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4729 conditions, 1112 events. 351/1112 cut-off events. For 4467/4469 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7168 event pairs, 62 based on Foata normal form. 13/1123 useless extension candidates. Maximal degree in co-relation 4628. Up to 457 conditions per place. [2022-11-16 12:35:11,925 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 146 selfloop transitions, 62 changer transitions 15/261 dead transitions. [2022-11-16 12:35:11,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 261 transitions, 2588 flow [2022-11-16 12:35:11,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 615 transitions. [2022-11-16 12:35:11,928 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5631868131868132 [2022-11-16 12:35:11,928 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 615 transitions. [2022-11-16 12:35:11,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 615 transitions. [2022-11-16 12:35:11,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:11,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 615 transitions. [2022-11-16 12:35:11,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.30769230769231) internal successors, (615), 13 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:11,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:11,932 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:11,932 INFO L175 Difference]: Start difference. First operand has 141 places, 178 transitions, 1453 flow. Second operand 13 states and 615 transitions. [2022-11-16 12:35:11,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 261 transitions, 2588 flow [2022-11-16 12:35:11,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 261 transitions, 2523 flow, removed 24 selfloop flow, removed 6 redundant places. [2022-11-16 12:35:11,969 INFO L231 Difference]: Finished difference. Result has 153 places, 200 transitions, 1889 flow [2022-11-16 12:35:11,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1889, PETRI_PLACES=153, PETRI_TRANSITIONS=200} [2022-11-16 12:35:11,970 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 67 predicate places. [2022-11-16 12:35:11,970 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 200 transitions, 1889 flow [2022-11-16 12:35:11,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:11,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:11,971 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] [2022-11-16 12:35:11,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:35:11,971 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash -181248448, now seen corresponding path program 6 times [2022-11-16 12:35:11,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:11,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774638492] [2022-11-16 12:35:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:11,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:12,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:12,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774638492] [2022-11-16 12:35:12,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774638492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:12,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:12,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062428458] [2022-11-16 12:35:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:12,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:12,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:12,397 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:12,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 200 transitions, 1889 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:12,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:12,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:12,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:13,091 INFO L130 PetriNetUnfolder]: 350/1117 cut-off events. [2022-11-16 12:35:13,094 INFO L131 PetriNetUnfolder]: For 6063/6063 co-relation queries the response was YES. [2022-11-16 12:35:13,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5168 conditions, 1117 events. 350/1117 cut-off events. For 6063/6063 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7206 event pairs, 44 based on Foata normal form. 5/1120 useless extension candidates. Maximal degree in co-relation 5062. Up to 599 conditions per place. [2022-11-16 12:35:13,105 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 129 selfloop transitions, 58 changer transitions 16/241 dead transitions. [2022-11-16 12:35:13,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 241 transitions, 2633 flow [2022-11-16 12:35:13,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 569 transitions. [2022-11-16 12:35:13,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.564484126984127 [2022-11-16 12:35:13,108 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 569 transitions. [2022-11-16 12:35:13,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 569 transitions. [2022-11-16 12:35:13,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:13,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 569 transitions. [2022-11-16 12:35:13,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 47.416666666666664) internal successors, (569), 12 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:13,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:13,113 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:13,113 INFO L175 Difference]: Start difference. First operand has 153 places, 200 transitions, 1889 flow. Second operand 12 states and 569 transitions. [2022-11-16 12:35:13,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 241 transitions, 2633 flow [2022-11-16 12:35:13,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 241 transitions, 2502 flow, removed 25 selfloop flow, removed 6 redundant places. [2022-11-16 12:35:13,186 INFO L231 Difference]: Finished difference. Result has 163 places, 207 transitions, 2070 flow [2022-11-16 12:35:13,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2070, PETRI_PLACES=163, PETRI_TRANSITIONS=207} [2022-11-16 12:35:13,188 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 77 predicate places. [2022-11-16 12:35:13,188 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 207 transitions, 2070 flow [2022-11-16 12:35:13,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:13,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:13,189 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] [2022-11-16 12:35:13,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:35:13,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:13,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1957212360, now seen corresponding path program 7 times [2022-11-16 12:35:13,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:13,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328145303] [2022-11-16 12:35:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:13,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:13,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328145303] [2022-11-16 12:35:13,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328145303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:13,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:13,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:13,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844783730] [2022-11-16 12:35:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:13,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:13,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:13,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:13,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:13,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 207 transitions, 2070 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:13,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:13,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:13,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:14,361 INFO L130 PetriNetUnfolder]: 384/1226 cut-off events. [2022-11-16 12:35:14,361 INFO L131 PetriNetUnfolder]: For 8628/8628 co-relation queries the response was YES. [2022-11-16 12:35:14,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5898 conditions, 1226 events. 384/1226 cut-off events. For 8628/8628 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8181 event pairs, 66 based on Foata normal form. 11/1235 useless extension candidates. Maximal degree in co-relation 5786. Up to 385 conditions per place. [2022-11-16 12:35:14,373 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 174 selfloop transitions, 70 changer transitions 15/297 dead transitions. [2022-11-16 12:35:14,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 297 transitions, 3442 flow [2022-11-16 12:35:14,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 615 transitions. [2022-11-16 12:35:14,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5631868131868132 [2022-11-16 12:35:14,377 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 615 transitions. [2022-11-16 12:35:14,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 615 transitions. [2022-11-16 12:35:14,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:14,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 615 transitions. [2022-11-16 12:35:14,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 47.30769230769231) internal successors, (615), 13 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:14,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:14,384 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:14,384 INFO L175 Difference]: Start difference. First operand has 163 places, 207 transitions, 2070 flow. Second operand 13 states and 615 transitions. [2022-11-16 12:35:14,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 297 transitions, 3442 flow [2022-11-16 12:35:14,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 297 transitions, 3422 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-11-16 12:35:14,436 INFO L231 Difference]: Finished difference. Result has 175 places, 226 transitions, 2604 flow [2022-11-16 12:35:14,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2604, PETRI_PLACES=175, PETRI_TRANSITIONS=226} [2022-11-16 12:35:14,438 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 89 predicate places. [2022-11-16 12:35:14,438 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 226 transitions, 2604 flow [2022-11-16 12:35:14,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:14,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:14,439 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] [2022-11-16 12:35:14,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:35:14,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:14,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1470847946, now seen corresponding path program 1 times [2022-11-16 12:35:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:14,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607197452] [2022-11-16 12:35:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:14,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:14,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:14,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607197452] [2022-11-16 12:35:14,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607197452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:14,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:14,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:14,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074418789] [2022-11-16 12:35:14,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:14,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:14,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:14,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:14,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:14,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:14,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 226 transitions, 2604 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:14,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:14,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:14,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:15,567 INFO L130 PetriNetUnfolder]: 368/1180 cut-off events. [2022-11-16 12:35:15,567 INFO L131 PetriNetUnfolder]: For 10609/10609 co-relation queries the response was YES. [2022-11-16 12:35:15,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6073 conditions, 1180 events. 368/1180 cut-off events. For 10609/10609 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7750 event pairs, 42 based on Foata normal form. 33/1211 useless extension candidates. Maximal degree in co-relation 5955. Up to 245 conditions per place. [2022-11-16 12:35:15,578 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 61 selfloop transitions, 29 changer transitions 208/332 dead transitions. [2022-11-16 12:35:15,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 332 transitions, 4727 flow [2022-11-16 12:35:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 560 transitions. [2022-11-16 12:35:15,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-11-16 12:35:15,582 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 560 transitions. [2022-11-16 12:35:15,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 560 transitions. [2022-11-16 12:35:15,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:15,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 560 transitions. [2022-11-16 12:35:15,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.666666666666664) internal successors, (560), 12 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:15,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:15,586 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:15,586 INFO L175 Difference]: Start difference. First operand has 175 places, 226 transitions, 2604 flow. Second operand 12 states and 560 transitions. [2022-11-16 12:35:15,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 332 transitions, 4727 flow [2022-11-16 12:35:15,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 332 transitions, 4580 flow, removed 70 selfloop flow, removed 4 redundant places. [2022-11-16 12:35:15,657 INFO L231 Difference]: Finished difference. Result has 181 places, 109 transitions, 838 flow [2022-11-16 12:35:15,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=2501, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=838, PETRI_PLACES=181, PETRI_TRANSITIONS=109} [2022-11-16 12:35:15,658 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 95 predicate places. [2022-11-16 12:35:15,658 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 109 transitions, 838 flow [2022-11-16 12:35:15,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:15,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:15,659 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] [2022-11-16 12:35:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:35:15,660 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:15,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash -934181958, now seen corresponding path program 8 times [2022-11-16 12:35:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:15,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814073637] [2022-11-16 12:35:15,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:15,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814073637] [2022-11-16 12:35:16,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814073637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:16,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:16,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672627282] [2022-11-16 12:35:16,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:16,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:16,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:16,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:16,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:16,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 109 transitions, 838 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:16,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:16,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:16,617 INFO L130 PetriNetUnfolder]: 98/453 cut-off events. [2022-11-16 12:35:16,618 INFO L131 PetriNetUnfolder]: For 3322/3336 co-relation queries the response was YES. [2022-11-16 12:35:16,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 453 events. 98/453 cut-off events. For 3322/3336 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2173 event pairs, 25 based on Foata normal form. 16/467 useless extension candidates. Maximal degree in co-relation 2064. Up to 219 conditions per place. [2022-11-16 12:35:16,623 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 68 selfloop transitions, 15 changer transitions 28/147 dead transitions. [2022-11-16 12:35:16,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 147 transitions, 1406 flow [2022-11-16 12:35:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:16,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 585 transitions. [2022-11-16 12:35:16,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2022-11-16 12:35:16,625 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 585 transitions. [2022-11-16 12:35:16,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 585 transitions. [2022-11-16 12:35:16,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:16,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 585 transitions. [2022-11-16 12:35:16,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,632 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,632 INFO L175 Difference]: Start difference. First operand has 181 places, 109 transitions, 838 flow. Second operand 13 states and 585 transitions. [2022-11-16 12:35:16,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 147 transitions, 1406 flow [2022-11-16 12:35:16,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 147 transitions, 978 flow, removed 125 selfloop flow, removed 36 redundant places. [2022-11-16 12:35:16,648 INFO L231 Difference]: Finished difference. Result has 141 places, 109 transitions, 594 flow [2022-11-16 12:35:16,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=141, PETRI_TRANSITIONS=109} [2022-11-16 12:35:16,650 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-16 12:35:16,650 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 109 transitions, 594 flow [2022-11-16 12:35:16,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:16,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:16,651 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] [2022-11-16 12:35:16,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:35:16,652 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2029195320, now seen corresponding path program 9 times [2022-11-16 12:35:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:16,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183270856] [2022-11-16 12:35:16,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:16,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:17,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:17,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183270856] [2022-11-16 12:35:17,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183270856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:17,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:17,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:17,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710398198] [2022-11-16 12:35:17,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:17,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:17,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:17,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:17,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:17,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:17,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 109 transitions, 594 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:17,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:17,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:17,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:17,608 INFO L130 PetriNetUnfolder]: 83/381 cut-off events. [2022-11-16 12:35:17,608 INFO L131 PetriNetUnfolder]: For 948/962 co-relation queries the response was YES. [2022-11-16 12:35:17,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1269 conditions, 381 events. 83/381 cut-off events. For 948/962 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1614 event pairs, 21 based on Foata normal form. 16/395 useless extension candidates. Maximal degree in co-relation 1239. Up to 161 conditions per place. [2022-11-16 12:35:17,611 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 59 selfloop transitions, 7 changer transitions 52/154 dead transitions. [2022-11-16 12:35:17,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 1102 flow [2022-11-16 12:35:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:17,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 544 transitions. [2022-11-16 12:35:17,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2022-11-16 12:35:17,613 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 544 transitions. [2022-11-16 12:35:17,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 544 transitions. [2022-11-16 12:35:17,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:17,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 544 transitions. [2022-11-16 12:35:17,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.333333333333336) internal successors, (544), 12 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:17,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:17,617 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:17,618 INFO L175 Difference]: Start difference. First operand has 141 places, 109 transitions, 594 flow. Second operand 12 states and 544 transitions. [2022-11-16 12:35:17,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 1102 flow [2022-11-16 12:35:17,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 154 transitions, 1046 flow, removed 11 selfloop flow, removed 12 redundant places. [2022-11-16 12:35:17,626 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 475 flow [2022-11-16 12:35:17,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=475, PETRI_PLACES=141, PETRI_TRANSITIONS=100} [2022-11-16 12:35:17,627 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 55 predicate places. [2022-11-16 12:35:17,628 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 475 flow [2022-11-16 12:35:17,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:17,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:17,628 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] [2022-11-16 12:35:17,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:35:17,629 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:17,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1014686740, now seen corresponding path program 10 times [2022-11-16 12:35:17,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:17,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781109515] [2022-11-16 12:35:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:17,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:18,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:18,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781109515] [2022-11-16 12:35:18,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781109515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:18,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:18,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558044534] [2022-11-16 12:35:18,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:18,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:18,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:18,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:18,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:18,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 100 transitions, 475 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:18,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:18,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:18,484 INFO L130 PetriNetUnfolder]: 60/318 cut-off events. [2022-11-16 12:35:18,484 INFO L131 PetriNetUnfolder]: For 661/668 co-relation queries the response was YES. [2022-11-16 12:35:18,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 318 events. 60/318 cut-off events. For 661/668 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1248 event pairs, 17 based on Foata normal form. 12/330 useless extension candidates. Maximal degree in co-relation 976. Up to 51 conditions per place. [2022-11-16 12:35:18,487 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 65 selfloop transitions, 14 changer transitions 35/150 dead transitions. [2022-11-16 12:35:18,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 1038 flow [2022-11-16 12:35:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:18,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 539 transitions. [2022-11-16 12:35:18,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347222222222222 [2022-11-16 12:35:18,489 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 539 transitions. [2022-11-16 12:35:18,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 539 transitions. [2022-11-16 12:35:18,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:18,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 539 transitions. [2022-11-16 12:35:18,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.916666666666664) internal successors, (539), 12 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,493 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,493 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 475 flow. Second operand 12 states and 539 transitions. [2022-11-16 12:35:18,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 1038 flow [2022-11-16 12:35:18,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 150 transitions, 932 flow, removed 41 selfloop flow, removed 16 redundant places. [2022-11-16 12:35:18,500 INFO L231 Difference]: Finished difference. Result has 129 places, 95 transitions, 427 flow [2022-11-16 12:35:18,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=427, PETRI_PLACES=129, PETRI_TRANSITIONS=95} [2022-11-16 12:35:18,501 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 43 predicate places. [2022-11-16 12:35:18,502 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 95 transitions, 427 flow [2022-11-16 12:35:18,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:18,502 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] [2022-11-16 12:35:18,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:35:18,503 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:18,503 INFO L85 PathProgramCache]: Analyzing trace with hash -733128924, now seen corresponding path program 11 times [2022-11-16 12:35:18,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:18,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944720926] [2022-11-16 12:35:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:18,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:18,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:18,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944720926] [2022-11-16 12:35:18,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944720926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:18,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:18,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548012982] [2022-11-16 12:35:18,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:18,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:18,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:18,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:18,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:18,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:18,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 95 transitions, 427 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:18,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:18,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:18,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:19,327 INFO L130 PetriNetUnfolder]: 40/257 cut-off events. [2022-11-16 12:35:19,327 INFO L131 PetriNetUnfolder]: For 459/461 co-relation queries the response was YES. [2022-11-16 12:35:19,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 257 events. 40/257 cut-off events. For 459/461 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 867 event pairs, 20 based on Foata normal form. 7/264 useless extension candidates. Maximal degree in co-relation 759. Up to 83 conditions per place. [2022-11-16 12:35:19,329 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 49 selfloop transitions, 17 changer transitions 11/113 dead transitions. [2022-11-16 12:35:19,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 113 transitions, 694 flow [2022-11-16 12:35:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:35:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:35:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 532 transitions. [2022-11-16 12:35:19,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-11-16 12:35:19,331 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 532 transitions. [2022-11-16 12:35:19,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 532 transitions. [2022-11-16 12:35:19,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:19,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 532 transitions. [2022-11-16 12:35:19,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.333333333333336) internal successors, (532), 12 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:19,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:19,340 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:19,340 INFO L175 Difference]: Start difference. First operand has 129 places, 95 transitions, 427 flow. Second operand 12 states and 532 transitions. [2022-11-16 12:35:19,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 113 transitions, 694 flow [2022-11-16 12:35:19,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 113 transitions, 622 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-16 12:35:19,345 INFO L231 Difference]: Finished difference. Result has 130 places, 97 transitions, 439 flow [2022-11-16 12:35:19,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=439, PETRI_PLACES=130, PETRI_TRANSITIONS=97} [2022-11-16 12:35:19,347 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2022-11-16 12:35:19,347 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 97 transitions, 439 flow [2022-11-16 12:35:19,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:19,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:19,348 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] [2022-11-16 12:35:19,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:35:19,348 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:19,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:19,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1110758482, now seen corresponding path program 12 times [2022-11-16 12:35:19,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:19,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667440822] [2022-11-16 12:35:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:19,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:19,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667440822] [2022-11-16 12:35:19,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667440822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:19,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:19,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:19,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888140448] [2022-11-16 12:35:19,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:19,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:19,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:19,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:19,737 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:19,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 97 transitions, 439 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:19,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:19,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:19,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:20,203 INFO L130 PetriNetUnfolder]: 32/213 cut-off events. [2022-11-16 12:35:20,204 INFO L131 PetriNetUnfolder]: For 383/385 co-relation queries the response was YES. [2022-11-16 12:35:20,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 213 events. 32/213 cut-off events. For 383/385 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 586 event pairs, 12 based on Foata normal form. 12/225 useless extension candidates. Maximal degree in co-relation 626. Up to 45 conditions per place. [2022-11-16 12:35:20,206 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 44 selfloop transitions, 11 changer transitions 33/124 dead transitions. [2022-11-16 12:35:20,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 124 transitions, 761 flow [2022-11-16 12:35:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 573 transitions. [2022-11-16 12:35:20,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5247252747252747 [2022-11-16 12:35:20,213 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 573 transitions. [2022-11-16 12:35:20,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 573 transitions. [2022-11-16 12:35:20,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:20,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 573 transitions. [2022-11-16 12:35:20,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 44.07692307692308) internal successors, (573), 13 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:20,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:20,221 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:20,222 INFO L175 Difference]: Start difference. First operand has 130 places, 97 transitions, 439 flow. Second operand 13 states and 573 transitions. [2022-11-16 12:35:20,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 124 transitions, 761 flow [2022-11-16 12:35:20,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 124 transitions, 730 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-16 12:35:20,229 INFO L231 Difference]: Finished difference. Result has 135 places, 90 transitions, 362 flow [2022-11-16 12:35:20,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=362, PETRI_PLACES=135, PETRI_TRANSITIONS=90} [2022-11-16 12:35:20,230 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 49 predicate places. [2022-11-16 12:35:20,232 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 90 transitions, 362 flow [2022-11-16 12:35:20,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:20,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:20,233 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] [2022-11-16 12:35:20,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:35:20,234 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1634738408, now seen corresponding path program 13 times [2022-11-16 12:35:20,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:20,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497760981] [2022-11-16 12:35:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:20,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:20,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:20,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497760981] [2022-11-16 12:35:20,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497760981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:20,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:20,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:20,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778426319] [2022-11-16 12:35:20,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:20,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:20,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:20,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:20,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:20,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 90 transitions, 362 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:20,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:20,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:20,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:21,082 INFO L130 PetriNetUnfolder]: 26/189 cut-off events. [2022-11-16 12:35:21,083 INFO L131 PetriNetUnfolder]: For 301/303 co-relation queries the response was YES. [2022-11-16 12:35:21,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 189 events. 26/189 cut-off events. For 301/303 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 469 event pairs, 7 based on Foata normal form. 12/201 useless extension candidates. Maximal degree in co-relation 527. Up to 43 conditions per place. [2022-11-16 12:35:21,084 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 44 selfloop transitions, 10 changer transitions 29/119 dead transitions. [2022-11-16 12:35:21,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 119 transitions, 681 flow [2022-11-16 12:35:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:35:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 12:35:21,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 613 transitions. [2022-11-16 12:35:21,086 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5212585034013606 [2022-11-16 12:35:21,087 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 613 transitions. [2022-11-16 12:35:21,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 613 transitions. [2022-11-16 12:35:21,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:21,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 613 transitions. [2022-11-16 12:35:21,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 43.785714285714285) internal successors, (613), 14 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,091 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,091 INFO L175 Difference]: Start difference. First operand has 135 places, 90 transitions, 362 flow. Second operand 14 states and 613 transitions. [2022-11-16 12:35:21,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 119 transitions, 681 flow [2022-11-16 12:35:21,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 605 flow, removed 15 selfloop flow, removed 17 redundant places. [2022-11-16 12:35:21,095 INFO L231 Difference]: Finished difference. Result has 124 places, 86 transitions, 299 flow [2022-11-16 12:35:21,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=299, PETRI_PLACES=124, PETRI_TRANSITIONS=86} [2022-11-16 12:35:21,096 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 38 predicate places. [2022-11-16 12:35:21,096 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 86 transitions, 299 flow [2022-11-16 12:35:21,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:21,097 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] [2022-11-16 12:35:21,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:35:21,097 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:35:21,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:21,098 INFO L85 PathProgramCache]: Analyzing trace with hash 969712462, now seen corresponding path program 14 times [2022-11-16 12:35:21,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:21,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028617499] [2022-11-16 12:35:21,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:21,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:35:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:35:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:35:21,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:35:21,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028617499] [2022-11-16 12:35:21,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028617499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:35:21,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:35:21,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:35:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629121651] [2022-11-16 12:35:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:35:21,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:35:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:35:21,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:35:21,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:35:21,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-16 12:35:21,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 86 transitions, 299 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:35:21,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-16 12:35:21,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:35:21,915 INFO L130 PetriNetUnfolder]: 10/113 cut-off events. [2022-11-16 12:35:21,915 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-11-16 12:35:21,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 113 events. 10/113 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 10/123 useless extension candidates. Maximal degree in co-relation 288. Up to 19 conditions per place. [2022-11-16 12:35:21,916 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 0 selfloop transitions, 0 changer transitions 98/98 dead transitions. [2022-11-16 12:35:21,916 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 98 transitions, 496 flow [2022-11-16 12:35:21,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:35:21,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:35:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 561 transitions. [2022-11-16 12:35:21,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5137362637362637 [2022-11-16 12:35:21,918 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 561 transitions. [2022-11-16 12:35:21,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 561 transitions. [2022-11-16 12:35:21,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:35:21,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 561 transitions. [2022-11-16 12:35:21,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 43.15384615384615) internal successors, (561), 13 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,922 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,922 INFO L175 Difference]: Start difference. First operand has 124 places, 86 transitions, 299 flow. Second operand 13 states and 561 transitions. [2022-11-16 12:35:21,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 98 transitions, 496 flow [2022-11-16 12:35:21,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 98 transitions, 444 flow, removed 11 selfloop flow, removed 13 redundant places. [2022-11-16 12:35:21,925 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-11-16 12:35:21,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-11-16 12:35:21,925 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, 30 predicate places. [2022-11-16 12:35:21,926 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-11-16 12:35:21,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:35:21,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-16 12:35:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-16 12:35:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-16 12:35:21,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-16 12:35:21,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:35:21,930 INFO L444 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1] [2022-11-16 12:35:21,934 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:35:21,934 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:35:21,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:21 BasicIcfg [2022-11-16 12:35:21,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:35:21,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:35:21,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:35:21,940 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:35:21,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:02" (3/4) ... [2022-11-16 12:35:21,942 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:35:21,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:35:21,953 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-16 12:35:21,953 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:35:21,953 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:35:21,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:35:21,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:35:21,990 INFO L158 Benchmark]: Toolchain (without parser) took 21024.03ms. Allocated memory was 123.7MB in the beginning and 364.9MB in the end (delta: 241.2MB). Free memory was 85.4MB in the beginning and 263.2MB in the end (delta: -177.8MB). Peak memory consumption was 62.8MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,990 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:35:21,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.18ms. Allocated memory is still 123.7MB. Free memory was 85.1MB in the beginning and 83.6MB in the end (delta: 1.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.31ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 81.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,991 INFO L158 Benchmark]: Boogie Preprocessor took 36.95ms. Allocated memory is still 123.7MB. Free memory was 81.0MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,991 INFO L158 Benchmark]: RCFGBuilder took 527.53ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 65.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,992 INFO L158 Benchmark]: TraceAbstraction took 19622.74ms. Allocated memory was 123.7MB in the beginning and 364.9MB in the end (delta: 241.2MB). Free memory was 64.2MB in the beginning and 265.3MB in the end (delta: -201.1MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,992 INFO L158 Benchmark]: Witness Printer took 50.08ms. Allocated memory is still 364.9MB. Free memory was 265.3MB in the beginning and 263.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:35:21,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.18ms. Allocated memory is still 123.7MB. Free memory was 85.1MB in the beginning and 83.6MB in the end (delta: 1.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.31ms. Allocated memory is still 123.7MB. Free memory was 83.6MB in the beginning and 81.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.95ms. Allocated memory is still 123.7MB. Free memory was 81.0MB in the beginning and 79.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.53ms. Allocated memory is still 123.7MB. Free memory was 79.4MB in the beginning and 65.3MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19622.74ms. Allocated memory was 123.7MB in the beginning and 364.9MB in the end (delta: 241.2MB). Free memory was 64.2MB in the beginning and 265.3MB in the end (delta: -201.1MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Witness Printer took 50.08ms. Allocated memory is still 364.9MB. Free memory was 265.3MB in the beginning and 263.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.5s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2230 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2230 mSDsluCounter, 831 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 524 mSDsCounter, 478 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5335 IncrementalHoareTripleChecker+Invalid, 5813 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 478 mSolverCounterUnsat, 307 mSDtfsCounter, 5335 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2604occurred in iteration=10, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 1099 NumberOfCodeBlocks, 1099 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1081 ConstructedInterpolants, 0 QuantifiedInterpolants, 7599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:35:22,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e6b048-7c14-488c-ac9d-6fbbf9154024/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE