./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/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_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/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_49c8dd5a-1014-4072-9101-747976e7f9b1/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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- 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 11:36:05,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:36:05,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:36:05,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:36:05,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:36:05,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:36:05,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:36:05,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:36:05,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:36:05,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:36:05,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:36:05,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:36:05,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:36:05,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:36:05,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:36:05,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:36:05,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:36:05,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:36:05,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:36:05,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:36:05,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:36:05,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:36:05,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:36:05,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:36:05,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:36:05,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:36:05,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:36:05,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:36:05,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:36:05,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:36:05,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:36:05,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:36:05,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:36:05,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:36:05,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:36:05,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:36:05,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:36:05,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:36:05,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:36:05,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:36:05,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:36:05,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:36:05,789 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:36:05,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:36:05,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:36:05,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:36:05,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:36:05,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:36:05,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:36:05,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:36:05,792 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:36:05,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:36:05,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:36:05,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:36:05,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:36:05,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:36:05,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:36:05,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:36:05,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:36:05,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:36:05,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:36:05,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:36:05,797 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_49c8dd5a-1014-4072-9101-747976e7f9b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2022-11-16 11:36:06,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:36:06,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:36:06,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:36:06,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:36:06,086 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:36:06,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-16 11:36:06,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/data/b2af71f79/848c15d697784338875b23e86d9ee54a/FLAG49061bdd9 [2022-11-16 11:36:06,851 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:36:06,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-16 11:36:06,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/data/b2af71f79/848c15d697784338875b23e86d9ee54a/FLAG49061bdd9 [2022-11-16 11:36:07,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/data/b2af71f79/848c15d697784338875b23e86d9ee54a [2022-11-16 11:36:07,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:36:07,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:36:07,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:36:07,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:36:07,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:36:07,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:07,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3acdd0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07, skipping insertion in model container [2022-11-16 11:36:07,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:07,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:36:07,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:36:07,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:36:07,818 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:36:07,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:36:07,965 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:36:07,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07 WrapperNode [2022-11-16 11:36:07,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:36:07,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:36:07,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:36:07,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:36:07,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,054 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-16 11:36:08,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:36:08,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:36:08,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:36:08,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:36:08,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:36:08,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:36:08,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:36:08,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:36:08,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (1/1) ... [2022-11-16 11:36:08,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:36:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:08,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:36:08,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:36:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:36:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:36:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:36:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:36:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:36:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:36:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:36:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:36:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:36:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:36:08,205 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 11:36:08,340 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:36:08,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:36:08,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:36:08,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:36:08,704 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:36:08,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:36:08 BoogieIcfgContainer [2022-11-16 11:36:08,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:36:08,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:36:08,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:36:08,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:36:08,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:36:07" (1/3) ... [2022-11-16 11:36:08,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4ac44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:36:08, skipping insertion in model container [2022-11-16 11:36:08,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:36:07" (2/3) ... [2022-11-16 11:36:08,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea4ac44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:36:08, skipping insertion in model container [2022-11-16 11:36:08,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:36:08" (3/3) ... [2022-11-16 11:36:08,716 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2022-11-16 11:36:08,725 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:36:08,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:36:08,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:36:08,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:36:08,812 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:36:08,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-11-16 11:36:08,934 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-16 11:36:08,934 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:36:08,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-16 11:36:08,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-11-16 11:36:08,944 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-11-16 11:36:08,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:36:08,961 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;@4676578e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:36:08,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 11:36:08,976 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-11-16 11:36:08,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:36:08,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:08,977 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] [2022-11-16 11:36:08,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:08,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:08,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1298122157, now seen corresponding path program 1 times [2022-11-16 11:36:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:08,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389342210] [2022-11-16 11:36:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:09,209 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 11:36:09,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:09,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389342210] [2022-11-16 11:36:09,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389342210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:09,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:09,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:36:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501994951] [2022-11-16 11:36:09,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:09,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:36:09,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:36:09,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:36:09,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 103 [2022-11-16 11:36:09,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 11:36:09,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:09,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 103 [2022-11-16 11:36:09,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:09,301 INFO L130 PetriNetUnfolder]: 1/99 cut-off events. [2022-11-16 11:36:09,301 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:36:09,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 1/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 3/95 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-16 11:36:09,303 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 1 selfloop transitions, 0 changer transitions 1/99 dead transitions. [2022-11-16 11:36:09,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 99 transitions, 203 flow [2022-11-16 11:36:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:36:09,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:36:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-11-16 11:36:09,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9805825242718447 [2022-11-16 11:36:09,316 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-11-16 11:36:09,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-11-16 11:36:09,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:09,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-11-16 11:36:09,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 11:36:09,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 11:36:09,328 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 11:36:09,330 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 207 flow. Second operand 2 states and 202 transitions. [2022-11-16 11:36:09,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 99 transitions, 203 flow [2022-11-16 11:36:09,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:36:09,337 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 198 flow [2022-11-16 11:36:09,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=198, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2022-11-16 11:36:09,342 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-11-16 11:36:09,343 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 198 flow [2022-11-16 11:36:09,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 11:36:09,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:09,343 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] [2022-11-16 11:36:09,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:36:09,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:09,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:09,345 INFO L85 PathProgramCache]: Analyzing trace with hash -779087186, now seen corresponding path program 1 times [2022-11-16 11:36:09,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:09,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598350494] [2022-11-16 11:36:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:09,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:09,498 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 11:36:09,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:09,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598350494] [2022-11-16 11:36:09,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598350494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:09,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:09,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:36:09,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033739441] [2022-11-16 11:36:09,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:09,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:36:09,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:09,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:36:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:36:09,504 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 103 [2022-11-16 11:36:09,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:36:09,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:09,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 103 [2022-11-16 11:36:09,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:09,551 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-16 11:36:09,551 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:36:09,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 102 events. 1/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 116. Up to 9 conditions per place. [2022-11-16 11:36:09,552 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 10 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-11-16 11:36:09,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 230 flow [2022-11-16 11:36:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:36:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:36:09,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2022-11-16 11:36:09,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9352750809061489 [2022-11-16 11:36:09,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2022-11-16 11:36:09,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2022-11-16 11:36:09,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:09,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2022-11-16 11:36:09,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 11:36:09,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 11:36:09,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 11:36:09,561 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 198 flow. Second operand 3 states and 289 transitions. [2022-11-16 11:36:09,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 230 flow [2022-11-16 11:36:09,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:09,565 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 210 flow [2022-11-16 11:36:09,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2022-11-16 11:36:09,566 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-11-16 11:36:09,566 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 210 flow [2022-11-16 11:36:09,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 11:36:09,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:09,567 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] [2022-11-16 11:36:09,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:36:09,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:09,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:09,569 INFO L85 PathProgramCache]: Analyzing trace with hash 624473633, now seen corresponding path program 1 times [2022-11-16 11:36:09,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:09,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616911420] [2022-11-16 11:36:09,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:09,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:09,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:09,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:09,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616911420] [2022-11-16 11:36:09,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616911420] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:09,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597868592] [2022-11-16 11:36:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:09,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:09,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:09,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:09,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:36:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:09,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:36:09,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:10,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:36:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:10,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597868592] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:36:10,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:36:10,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 11:36:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270085863] [2022-11-16 11:36:10,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:36:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:10,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 11:36:10,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:10,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:10,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 11:36:10,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:10,305 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2022-11-16 11:36:10,305 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:36:10,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 109 events. 1/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2022-11-16 11:36:10,306 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 11 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2022-11-16 11:36:10,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 272 flow [2022-11-16 11:36:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:36:10,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:36:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 841 transitions. [2022-11-16 11:36:10,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072276159654801 [2022-11-16 11:36:10,351 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 841 transitions. [2022-11-16 11:36:10,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 841 transitions. [2022-11-16 11:36:10,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:10,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 841 transitions. [2022-11-16 11:36:10,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.44444444444444) internal successors, (841), 9 states have internal predecessors, (841), 0 states have call successors, (0), 0 states 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 11:36:10,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 11:36:10,361 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 11:36:10,361 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 9 states and 841 transitions. [2022-11-16 11:36:10,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 272 flow [2022-11-16 11:36:10,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:36:10,364 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 258 flow [2022-11-16 11:36:10,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=258, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-11-16 11:36:10,365 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2022-11-16 11:36:10,365 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 258 flow [2022-11-16 11:36:10,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:10,366 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:10,367 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:10,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:10,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 11:36:10,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:10,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:10,574 INFO L85 PathProgramCache]: Analyzing trace with hash 653292097, now seen corresponding path program 2 times [2022-11-16 11:36:10,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:10,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528175001] [2022-11-16 11:36:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:10,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:10,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528175001] [2022-11-16 11:36:10,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528175001] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:10,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418239968] [2022-11-16 11:36:10,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:36:10,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:10,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:10,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:10,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:36:10,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:36:10,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:36:10,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:36:10,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:10,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:36:11,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:36:11,074 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:36:11,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:36:11,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:36:11,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:36:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 11:36:11,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:11,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418239968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:11,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:11,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-16 11:36:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320306474] [2022-11-16 11:36:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:11,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:11,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:36:11,204 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 103 [2022-11-16 11:36:11,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 11:36:11,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:11,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 103 [2022-11-16 11:36:11,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:11,693 INFO L130 PetriNetUnfolder]: 231/762 cut-off events. [2022-11-16 11:36:11,693 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:36:11,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 762 events. 231/762 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4156 event pairs, 103 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1293. Up to 361 conditions per place. [2022-11-16 11:36:11,699 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 72 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-16 11:36:11,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 163 transitions, 562 flow [2022-11-16 11:36:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:36:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 479 transitions. [2022-11-16 11:36:11,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7750809061488673 [2022-11-16 11:36:11,703 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 479 transitions. [2022-11-16 11:36:11,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 479 transitions. [2022-11-16 11:36:11,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:11,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 479 transitions. [2022-11-16 11:36:11,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states 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 11:36:11,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:11,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:11,707 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 258 flow. Second operand 6 states and 479 transitions. [2022-11-16 11:36:11,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 163 transitions, 562 flow [2022-11-16 11:36:11,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 556 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 11:36:11,712 INFO L231 Difference]: Finished difference. Result has 123 places, 126 transitions, 402 flow [2022-11-16 11:36:11,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=123, PETRI_TRANSITIONS=126} [2022-11-16 11:36:11,713 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 21 predicate places. [2022-11-16 11:36:11,713 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 126 transitions, 402 flow [2022-11-16 11:36:11,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 11:36:11,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:11,714 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:11,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:11,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -406389930, now seen corresponding path program 1 times [2022-11-16 11:36:11,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:11,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786370087] [2022-11-16 11:36:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:11,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:12,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:12,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786370087] [2022-11-16 11:36:12,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786370087] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:12,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099097788] [2022-11-16 11:36:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:12,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:12,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:12,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:36:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:12,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:36:12,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:12,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:36:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:12,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099097788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:36:12,497 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:36:12,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 11:36:12,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655107446] [2022-11-16 11:36:12,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:36:12,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 11:36:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 11:36:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:36:12,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 11:36:12,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 126 transitions, 402 flow. Second operand has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 11:36:12,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:12,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 11:36:12,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:12,778 INFO L130 PetriNetUnfolder]: 40/290 cut-off events. [2022-11-16 11:36:12,778 INFO L131 PetriNetUnfolder]: For 43/46 co-relation queries the response was YES. [2022-11-16 11:36:12,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 290 events. 40/290 cut-off events. For 43/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 873 event pairs, 4 based on Foata normal form. 4/281 useless extension candidates. Maximal degree in co-relation 524. Up to 49 conditions per place. [2022-11-16 11:36:12,781 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 19 selfloop transitions, 21 changer transitions 0/150 dead transitions. [2022-11-16 11:36:12,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 150 transitions, 582 flow [2022-11-16 11:36:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:36:12,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:36:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1955 transitions. [2022-11-16 11:36:12,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.903837263060564 [2022-11-16 11:36:12,787 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1955 transitions. [2022-11-16 11:36:12,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1955 transitions. [2022-11-16 11:36:12,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:12,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1955 transitions. [2022-11-16 11:36:12,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 93.0952380952381) internal successors, (1955), 21 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states 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 11:36:12,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 11:36:12,799 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 11:36:12,799 INFO L175 Difference]: Start difference. First operand has 123 places, 126 transitions, 402 flow. Second operand 21 states and 1955 transitions. [2022-11-16 11:36:12,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 150 transitions, 582 flow [2022-11-16 11:36:12,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 150 transitions, 582 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:12,806 INFO L231 Difference]: Finished difference. Result has 148 places, 139 transitions, 532 flow [2022-11-16 11:36:12,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=148, PETRI_TRANSITIONS=139} [2022-11-16 11:36:12,807 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 46 predicate places. [2022-11-16 11:36:12,807 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 139 transitions, 532 flow [2022-11-16 11:36:12,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 11:36:12,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:12,809 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:12,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:13,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:13,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:13,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:13,015 INFO L85 PathProgramCache]: Analyzing trace with hash 232143766, now seen corresponding path program 2 times [2022-11-16 11:36:13,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:13,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086839882] [2022-11-16 11:36:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:13,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:13,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:13,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086839882] [2022-11-16 11:36:13,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086839882] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:13,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002590704] [2022-11-16 11:36:13,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:36:13,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:13,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:13,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:13,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:36:13,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:36:13,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:36:13,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 11:36:13,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:13,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 11:36:13,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 11:36:13,601 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:36:13,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 11:36:13,648 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:36:13,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 11:36:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 11:36:13,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:36:13,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002590704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:13,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:36:13,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 11:36:13,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374651490] [2022-11-16 11:36:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:13,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:13,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 11:36:13,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2022-11-16 11:36:13,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 139 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 11:36:13,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:13,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2022-11-16 11:36:13,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:14,118 INFO L130 PetriNetUnfolder]: 315/1034 cut-off events. [2022-11-16 11:36:14,118 INFO L131 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2022-11-16 11:36:14,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2160 conditions, 1034 events. 315/1034 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6069 event pairs, 133 based on Foata normal form. 4/961 useless extension candidates. Maximal degree in co-relation 2143. Up to 572 conditions per place. [2022-11-16 11:36:14,125 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 73 selfloop transitions, 39 changer transitions 5/196 dead transitions. [2022-11-16 11:36:14,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 196 transitions, 910 flow [2022-11-16 11:36:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:36:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2022-11-16 11:36:14,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7572815533980582 [2022-11-16 11:36:14,128 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2022-11-16 11:36:14,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2022-11-16 11:36:14,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:14,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2022-11-16 11:36:14,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states 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 11:36:14,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:14,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:14,132 INFO L175 Difference]: Start difference. First operand has 148 places, 139 transitions, 532 flow. Second operand 6 states and 468 transitions. [2022-11-16 11:36:14,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 196 transitions, 910 flow [2022-11-16 11:36:14,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 196 transitions, 886 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 11:36:14,142 INFO L231 Difference]: Finished difference. Result has 152 places, 175 transitions, 796 flow [2022-11-16 11:36:14,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=796, PETRI_PLACES=152, PETRI_TRANSITIONS=175} [2022-11-16 11:36:14,146 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 50 predicate places. [2022-11-16 11:36:14,146 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 175 transitions, 796 flow [2022-11-16 11:36:14,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states 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 11:36:14,147 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:14,147 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:14,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 11:36:14,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:14,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash -109360466, now seen corresponding path program 1 times [2022-11-16 11:36:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:14,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868881578] [2022-11-16 11:36:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:14,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868881578] [2022-11-16 11:36:14,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868881578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:36:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386759280] [2022-11-16 11:36:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:14,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:14,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:36:14,753 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:36:14,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:36:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:14,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 11:36:14,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:36:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:14,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:36:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:36:15,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386759280] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:36:15,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:36:15,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 11:36:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418141425] [2022-11-16 11:36:15,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:36:15,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 11:36:15,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 11:36:15,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 11:36:15,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 11:36:15,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 175 transitions, 796 flow. Second operand has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 11:36:15,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:15,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 11:36:15,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:15,666 INFO L130 PetriNetUnfolder]: 109/546 cut-off events. [2022-11-16 11:36:15,666 INFO L131 PetriNetUnfolder]: For 297/310 co-relation queries the response was YES. [2022-11-16 11:36:15,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1219 conditions, 546 events. 109/546 cut-off events. For 297/310 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2644 event pairs, 8 based on Foata normal form. 7/533 useless extension candidates. Maximal degree in co-relation 1197. Up to 115 conditions per place. [2022-11-16 11:36:15,672 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 30 changer transitions 0/201 dead transitions. [2022-11-16 11:36:15,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 201 transitions, 1046 flow [2022-11-16 11:36:15,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:36:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:36:15,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2788 transitions. [2022-11-16 11:36:15,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9022653721682848 [2022-11-16 11:36:15,680 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2788 transitions. [2022-11-16 11:36:15,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2788 transitions. [2022-11-16 11:36:15,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:15,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2788 transitions. [2022-11-16 11:36:15,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 92.93333333333334) internal successors, (2788), 30 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states 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 11:36:15,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 11:36:15,698 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 11:36:15,698 INFO L175 Difference]: Start difference. First operand has 152 places, 175 transitions, 796 flow. Second operand 30 states and 2788 transitions. [2022-11-16 11:36:15,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 201 transitions, 1046 flow [2022-11-16 11:36:15,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 201 transitions, 1014 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:15,707 INFO L231 Difference]: Finished difference. Result has 184 places, 185 transitions, 916 flow [2022-11-16 11:36:15,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=916, PETRI_PLACES=184, PETRI_TRANSITIONS=185} [2022-11-16 11:36:15,709 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 82 predicate places. [2022-11-16 11:36:15,709 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 185 transitions, 916 flow [2022-11-16 11:36:15,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states 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 11:36:15,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:15,710 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:15,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:36:15,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49c8dd5a-1014-4072-9101-747976e7f9b1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:36:15,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:15,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash 827906497, now seen corresponding path program 2 times [2022-11-16 11:36:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495252505] [2022-11-16 11:36:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:16,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495252505] [2022-11-16 11:36:16,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495252505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:16,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:16,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:36:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824784914] [2022-11-16 11:36:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:16,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:16,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:16,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:36:16,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 103 [2022-11-16 11:36:16,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 185 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 11:36:16,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:16,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 103 [2022-11-16 11:36:16,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:16,838 INFO L130 PetriNetUnfolder]: 321/1076 cut-off events. [2022-11-16 11:36:16,838 INFO L131 PetriNetUnfolder]: For 778/786 co-relation queries the response was YES. [2022-11-16 11:36:16,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 1076 events. 321/1076 cut-off events. For 778/786 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6314 event pairs, 77 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 2802. Up to 538 conditions per place. [2022-11-16 11:36:16,849 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 108 selfloop transitions, 40 changer transitions 0/246 dead transitions. [2022-11-16 11:36:16,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 246 transitions, 1538 flow [2022-11-16 11:36:16,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:36:16,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2022-11-16 11:36:16,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8106796116504854 [2022-11-16 11:36:16,851 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 501 transitions. [2022-11-16 11:36:16,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 501 transitions. [2022-11-16 11:36:16,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:16,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 501 transitions. [2022-11-16 11:36:16,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states 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 11:36:16,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:16,856 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:16,856 INFO L175 Difference]: Start difference. First operand has 184 places, 185 transitions, 916 flow. Second operand 6 states and 501 transitions. [2022-11-16 11:36:16,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 246 transitions, 1538 flow [2022-11-16 11:36:16,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 246 transitions, 1492 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 11:36:16,875 INFO L231 Difference]: Finished difference. Result has 176 places, 216 transitions, 1238 flow [2022-11-16 11:36:16,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1238, PETRI_PLACES=176, PETRI_TRANSITIONS=216} [2022-11-16 11:36:16,879 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 74 predicate places. [2022-11-16 11:36:16,879 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 216 transitions, 1238 flow [2022-11-16 11:36:16,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 11:36:16,880 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:16,880 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:16,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:36:16,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:16,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:16,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249786, now seen corresponding path program 1 times [2022-11-16 11:36:16,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:16,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959941399] [2022-11-16 11:36:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:16,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:17,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:17,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959941399] [2022-11-16 11:36:17,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959941399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:17,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:17,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:36:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400834428] [2022-11-16 11:36:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:17,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:36:17,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:36:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:36:17,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2022-11-16 11:36:17,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 216 transitions, 1238 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 11:36:17,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:17,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2022-11-16 11:36:17,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:17,901 INFO L130 PetriNetUnfolder]: 432/1355 cut-off events. [2022-11-16 11:36:17,901 INFO L131 PetriNetUnfolder]: For 1520/1527 co-relation queries the response was YES. [2022-11-16 11:36:17,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4023 conditions, 1355 events. 432/1355 cut-off events. For 1520/1527 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8403 event pairs, 122 based on Foata normal form. 0/1322 useless extension candidates. Maximal degree in co-relation 3992. Up to 770 conditions per place. [2022-11-16 11:36:17,914 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 115 selfloop transitions, 58 changer transitions 18/287 dead transitions. [2022-11-16 11:36:17,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 287 transitions, 2032 flow [2022-11-16 11:36:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:36:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:36:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2022-11-16 11:36:17,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7993527508090615 [2022-11-16 11:36:17,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2022-11-16 11:36:17,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2022-11-16 11:36:17,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:17,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2022-11-16 11:36:17,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states 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 11:36:17,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:17,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:17,921 INFO L175 Difference]: Start difference. First operand has 176 places, 216 transitions, 1238 flow. Second operand 6 states and 494 transitions. [2022-11-16 11:36:17,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 287 transitions, 2032 flow [2022-11-16 11:36:17,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 287 transitions, 2014 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:17,944 INFO L231 Difference]: Finished difference. Result has 186 places, 257 transitions, 1740 flow [2022-11-16 11:36:17,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1740, PETRI_PLACES=186, PETRI_TRANSITIONS=257} [2022-11-16 11:36:17,945 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 84 predicate places. [2022-11-16 11:36:17,945 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 257 transitions, 1740 flow [2022-11-16 11:36:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 11:36:17,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:17,946 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:17,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:36:17,946 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:17,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:17,947 INFO L85 PathProgramCache]: Analyzing trace with hash 906953438, now seen corresponding path program 1 times [2022-11-16 11:36:17,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:17,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68958718] [2022-11-16 11:36:17,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:17,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:19,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:19,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68958718] [2022-11-16 11:36:19,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68958718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:19,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:19,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:19,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445869234] [2022-11-16 11:36:19,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:19,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:19,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:19,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:19,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:19,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 257 transitions, 1740 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:19,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:19,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:19,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:20,365 INFO L130 PetriNetUnfolder]: 602/1810 cut-off events. [2022-11-16 11:36:20,365 INFO L131 PetriNetUnfolder]: For 3025/3041 co-relation queries the response was YES. [2022-11-16 11:36:20,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6080 conditions, 1810 events. 602/1810 cut-off events. For 3025/3041 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11875 event pairs, 47 based on Foata normal form. 16/1813 useless extension candidates. Maximal degree in co-relation 6044. Up to 853 conditions per place. [2022-11-16 11:36:20,379 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 209 selfloop transitions, 77 changer transitions 46/418 dead transitions. [2022-11-16 11:36:20,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 418 transitions, 3462 flow [2022-11-16 11:36:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:36:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:36:20,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2022-11-16 11:36:20,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893203883495146 [2022-11-16 11:36:20,383 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 852 transitions. [2022-11-16 11:36:20,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 852 transitions. [2022-11-16 11:36:20,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:20,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 852 transitions. [2022-11-16 11:36:20,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.0) internal successors, (852), 12 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 11:36:20,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:36:20,389 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:36:20,389 INFO L175 Difference]: Start difference. First operand has 186 places, 257 transitions, 1740 flow. Second operand 12 states and 852 transitions. [2022-11-16 11:36:20,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 418 transitions, 3462 flow [2022-11-16 11:36:20,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 418 transitions, 3382 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:20,427 INFO L231 Difference]: Finished difference. Result has 205 places, 293 transitions, 2283 flow [2022-11-16 11:36:20,427 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2283, PETRI_PLACES=205, PETRI_TRANSITIONS=293} [2022-11-16 11:36:20,428 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 103 predicate places. [2022-11-16 11:36:20,428 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 293 transitions, 2283 flow [2022-11-16 11:36:20,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:20,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:20,429 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:20,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:36:20,429 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1475514096, now seen corresponding path program 2 times [2022-11-16 11:36:20,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:20,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27021081] [2022-11-16 11:36:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:20,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:21,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27021081] [2022-11-16 11:36:21,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27021081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:21,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:21,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235020396] [2022-11-16 11:36:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:21,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:21,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:21,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 293 transitions, 2283 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:21,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:21,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:21,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:22,676 INFO L130 PetriNetUnfolder]: 568/1707 cut-off events. [2022-11-16 11:36:22,676 INFO L131 PetriNetUnfolder]: For 4551/4572 co-relation queries the response was YES. [2022-11-16 11:36:22,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6668 conditions, 1707 events. 568/1707 cut-off events. For 4551/4572 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11021 event pairs, 140 based on Foata normal form. 14/1709 useless extension candidates. Maximal degree in co-relation 6623. Up to 869 conditions per place. [2022-11-16 11:36:22,692 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 192 selfloop transitions, 80 changer transitions 25/383 dead transitions. [2022-11-16 11:36:22,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 383 transitions, 3436 flow [2022-11-16 11:36:22,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:36:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:36:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2022-11-16 11:36:22,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7249190938511327 [2022-11-16 11:36:22,695 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2022-11-16 11:36:22,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2022-11-16 11:36:22,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:22,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2022-11-16 11:36:22,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 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 11:36:22,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 11:36:22,700 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 11:36:22,700 INFO L175 Difference]: Start difference. First operand has 205 places, 293 transitions, 2283 flow. Second operand 9 states and 672 transitions. [2022-11-16 11:36:22,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 383 transitions, 3436 flow [2022-11-16 11:36:22,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 383 transitions, 3406 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-16 11:36:22,772 INFO L231 Difference]: Finished difference. Result has 213 places, 297 transitions, 2490 flow [2022-11-16 11:36:22,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2258, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=213, PETRI_TRANSITIONS=297} [2022-11-16 11:36:22,773 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 111 predicate places. [2022-11-16 11:36:22,773 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 297 transitions, 2490 flow [2022-11-16 11:36:22,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:22,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:22,774 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:22,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:36:22,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:22,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:22,775 INFO L85 PathProgramCache]: Analyzing trace with hash 386395008, now seen corresponding path program 3 times [2022-11-16 11:36:22,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:22,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110471845] [2022-11-16 11:36:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:22,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:23,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:23,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110471845] [2022-11-16 11:36:23,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110471845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:23,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:23,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:23,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821138549] [2022-11-16 11:36:23,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:23,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:23,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:23,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:23,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:23,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 297 transitions, 2490 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:23,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:23,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:23,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:25,822 INFO L130 PetriNetUnfolder]: 1074/2908 cut-off events. [2022-11-16 11:36:25,823 INFO L131 PetriNetUnfolder]: For 10678/10714 co-relation queries the response was YES. [2022-11-16 11:36:25,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12512 conditions, 2908 events. 1074/2908 cut-off events. For 10678/10714 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 21362 event pairs, 128 based on Foata normal form. 28/2920 useless extension candidates. Maximal degree in co-relation 12464. Up to 953 conditions per place. [2022-11-16 11:36:25,850 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 382 selfloop transitions, 95 changer transitions 25/588 dead transitions. [2022-11-16 11:36:25,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 588 transitions, 6196 flow [2022-11-16 11:36:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:25,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:36:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 811 transitions. [2022-11-16 11:36:25,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7157987643424537 [2022-11-16 11:36:25,853 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 811 transitions. [2022-11-16 11:36:25,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 811 transitions. [2022-11-16 11:36:25,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:25,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 811 transitions. [2022-11-16 11:36:25,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.72727272727273) internal successors, (811), 11 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:25,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:25,858 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:25,858 INFO L175 Difference]: Start difference. First operand has 213 places, 297 transitions, 2490 flow. Second operand 11 states and 811 transitions. [2022-11-16 11:36:25,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 588 transitions, 6196 flow [2022-11-16 11:36:25,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 588 transitions, 6056 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 11:36:25,943 INFO L231 Difference]: Finished difference. Result has 226 places, 377 transitions, 3903 flow [2022-11-16 11:36:25,943 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2425, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3903, PETRI_PLACES=226, PETRI_TRANSITIONS=377} [2022-11-16 11:36:25,944 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 124 predicate places. [2022-11-16 11:36:25,944 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 377 transitions, 3903 flow [2022-11-16 11:36:25,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:25,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:25,945 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:25,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:36:25,945 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:25,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1525410592, now seen corresponding path program 4 times [2022-11-16 11:36:25,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:25,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900786413] [2022-11-16 11:36:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:25,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:27,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900786413] [2022-11-16 11:36:27,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900786413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:27,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:27,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036315404] [2022-11-16 11:36:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:27,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:27,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:27,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:27,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 377 transitions, 3903 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:27,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:27,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:27,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:28,633 INFO L130 PetriNetUnfolder]: 1063/3139 cut-off events. [2022-11-16 11:36:28,634 INFO L131 PetriNetUnfolder]: For 14528/14580 co-relation queries the response was YES. [2022-11-16 11:36:28,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13703 conditions, 3139 events. 1063/3139 cut-off events. For 14528/14580 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24381 event pairs, 144 based on Foata normal form. 30/3151 useless extension candidates. Maximal degree in co-relation 13648. Up to 990 conditions per place. [2022-11-16 11:36:28,670 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 388 selfloop transitions, 104 changer transitions 31/609 dead transitions. [2022-11-16 11:36:28,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 609 transitions, 6799 flow [2022-11-16 11:36:28,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:36:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:36:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 773 transitions. [2022-11-16 11:36:28,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7504854368932039 [2022-11-16 11:36:28,673 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 773 transitions. [2022-11-16 11:36:28,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 773 transitions. [2022-11-16 11:36:28,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:28,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 773 transitions. [2022-11-16 11:36:28,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 11:36:28,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:36:28,679 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:36:28,679 INFO L175 Difference]: Start difference. First operand has 226 places, 377 transitions, 3903 flow. Second operand 10 states and 773 transitions. [2022-11-16 11:36:28,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 609 transitions, 6799 flow [2022-11-16 11:36:28,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 609 transitions, 6751 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-16 11:36:28,809 INFO L231 Difference]: Finished difference. Result has 241 places, 403 transitions, 4592 flow [2022-11-16 11:36:28,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=3855, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4592, PETRI_PLACES=241, PETRI_TRANSITIONS=403} [2022-11-16 11:36:28,810 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 139 predicate places. [2022-11-16 11:36:28,810 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 403 transitions, 4592 flow [2022-11-16 11:36:28,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:28,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:28,811 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:28,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:36:28,811 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -147604058, now seen corresponding path program 5 times [2022-11-16 11:36:28,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:28,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370481928] [2022-11-16 11:36:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:29,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370481928] [2022-11-16 11:36:29,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370481928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:29,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:29,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:29,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212330542] [2022-11-16 11:36:29,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:29,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:29,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:29,849 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:29,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 403 transitions, 4592 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:29,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:29,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:29,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:31,806 INFO L130 PetriNetUnfolder]: 1073/3086 cut-off events. [2022-11-16 11:36:31,807 INFO L131 PetriNetUnfolder]: For 18826/18877 co-relation queries the response was YES. [2022-11-16 11:36:31,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14713 conditions, 3086 events. 1073/3086 cut-off events. For 18826/18877 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23704 event pairs, 182 based on Foata normal form. 28/3095 useless extension candidates. Maximal degree in co-relation 14651. Up to 1627 conditions per place. [2022-11-16 11:36:31,851 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 237 selfloop transitions, 158 changer transitions 21/502 dead transitions. [2022-11-16 11:36:31,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 502 transitions, 6240 flow [2022-11-16 11:36:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:36:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:36:31,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 857 transitions. [2022-11-16 11:36:31,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6933656957928802 [2022-11-16 11:36:31,855 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 857 transitions. [2022-11-16 11:36:31,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 857 transitions. [2022-11-16 11:36:31,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:31,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 857 transitions. [2022-11-16 11:36:31,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 71.41666666666667) internal successors, (857), 12 states have internal predecessors, (857), 0 states have call successors, (0), 0 states 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 11:36:31,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:36:31,861 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:36:31,861 INFO L175 Difference]: Start difference. First operand has 241 places, 403 transitions, 4592 flow. Second operand 12 states and 857 transitions. [2022-11-16 11:36:31,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 502 transitions, 6240 flow [2022-11-16 11:36:32,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 502 transitions, 6096 flow, removed 69 selfloop flow, removed 1 redundant places. [2022-11-16 11:36:32,110 INFO L231 Difference]: Finished difference. Result has 256 places, 417 transitions, 5035 flow [2022-11-16 11:36:32,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4451, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5035, PETRI_PLACES=256, PETRI_TRANSITIONS=417} [2022-11-16 11:36:32,111 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 154 predicate places. [2022-11-16 11:36:32,111 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 417 transitions, 5035 flow [2022-11-16 11:36:32,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:32,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:32,112 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:32,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:36:32,113 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash 706483278, now seen corresponding path program 6 times [2022-11-16 11:36:32,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:32,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422910692] [2022-11-16 11:36:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:32,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:33,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:33,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422910692] [2022-11-16 11:36:33,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422910692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:33,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:33,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:33,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237937300] [2022-11-16 11:36:33,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:33,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:33,209 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:33,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 417 transitions, 5035 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:33,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:33,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:33,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:35,276 INFO L130 PetriNetUnfolder]: 1066/3135 cut-off events. [2022-11-16 11:36:35,276 INFO L131 PetriNetUnfolder]: For 21207/21257 co-relation queries the response was YES. [2022-11-16 11:36:35,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15282 conditions, 3135 events. 1066/3135 cut-off events. For 21207/21257 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24317 event pairs, 131 based on Foata normal form. 32/3151 useless extension candidates. Maximal degree in co-relation 15215. Up to 943 conditions per place. [2022-11-16 11:36:35,311 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 430 selfloop transitions, 108 changer transitions 38/662 dead transitions. [2022-11-16 11:36:35,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 662 transitions, 8241 flow [2022-11-16 11:36:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:35,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:36:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2022-11-16 11:36:35,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7449249779346867 [2022-11-16 11:36:35,315 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2022-11-16 11:36:35,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2022-11-16 11:36:35,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:35,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2022-11-16 11:36:35,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 11:36:35,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:35,321 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:35,321 INFO L175 Difference]: Start difference. First operand has 256 places, 417 transitions, 5035 flow. Second operand 11 states and 844 transitions. [2022-11-16 11:36:35,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 662 transitions, 8241 flow [2022-11-16 11:36:35,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 662 transitions, 7891 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-16 11:36:35,516 INFO L231 Difference]: Finished difference. Result has 266 places, 439 transitions, 5393 flow [2022-11-16 11:36:35,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4741, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5393, PETRI_PLACES=266, PETRI_TRANSITIONS=439} [2022-11-16 11:36:35,517 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 164 predicate places. [2022-11-16 11:36:35,518 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 439 transitions, 5393 flow [2022-11-16 11:36:35,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:35,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:35,526 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:35,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:36:35,527 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash -822391322, now seen corresponding path program 7 times [2022-11-16 11:36:35,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:35,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610047941] [2022-11-16 11:36:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:35,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:36,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:36,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610047941] [2022-11-16 11:36:36,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610047941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:36,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:36,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-16 11:36:36,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475526022] [2022-11-16 11:36:36,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:36,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:36:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:36:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:36:36,935 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 103 [2022-11-16 11:36:36,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 439 transitions, 5393 flow. Second operand has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 11:36:36,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:36,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 103 [2022-11-16 11:36:36,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:40,446 INFO L130 PetriNetUnfolder]: 1605/4211 cut-off events. [2022-11-16 11:36:40,446 INFO L131 PetriNetUnfolder]: For 31619/31643 co-relation queries the response was YES. [2022-11-16 11:36:40,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21390 conditions, 4211 events. 1605/4211 cut-off events. For 31619/31643 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 33351 event pairs, 159 based on Foata normal form. 4/4192 useless extension candidates. Maximal degree in co-relation 21318. Up to 1121 conditions per place. [2022-11-16 11:36:40,497 INFO L137 encePairwiseOnDemand]: 74/103 looper letters, 363 selfloop transitions, 247 changer transitions 54/742 dead transitions. [2022-11-16 11:36:40,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 742 transitions, 10223 flow [2022-11-16 11:36:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 11:36:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-16 11:36:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1617 transitions. [2022-11-16 11:36:40,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5814455231930961 [2022-11-16 11:36:40,502 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1617 transitions. [2022-11-16 11:36:40,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1617 transitions. [2022-11-16 11:36:40,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:40,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1617 transitions. [2022-11-16 11:36:40,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 59.888888888888886) internal successors, (1617), 27 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states 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 11:36:40,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 103.0) internal successors, (2884), 28 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states 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 11:36:40,512 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 103.0) internal successors, (2884), 28 states have internal predecessors, (2884), 0 states have call successors, (0), 0 states 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 11:36:40,513 INFO L175 Difference]: Start difference. First operand has 266 places, 439 transitions, 5393 flow. Second operand 27 states and 1617 transitions. [2022-11-16 11:36:40,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 742 transitions, 10223 flow [2022-11-16 11:36:40,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 742 transitions, 10055 flow, removed 49 selfloop flow, removed 3 redundant places. [2022-11-16 11:36:40,832 INFO L231 Difference]: Finished difference. Result has 300 places, 539 transitions, 7615 flow [2022-11-16 11:36:40,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5290, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=7615, PETRI_PLACES=300, PETRI_TRANSITIONS=539} [2022-11-16 11:36:40,833 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 198 predicate places. [2022-11-16 11:36:40,833 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 539 transitions, 7615 flow [2022-11-16 11:36:40,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 51.526315789473685) internal successors, (979), 19 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 11:36:40,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:40,834 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:40,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:36:40,835 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:40,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2005589862, now seen corresponding path program 1 times [2022-11-16 11:36:40,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:40,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248404691] [2022-11-16 11:36:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:40,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:43,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:43,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248404691] [2022-11-16 11:36:43,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248404691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:43,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:43,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:36:43,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010400777] [2022-11-16 11:36:43,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:43,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:36:43,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:43,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:36:43,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:36:43,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:36:43,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 539 transitions, 7615 flow. Second operand has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 11:36:43,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:43,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:36:43,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:46,046 INFO L130 PetriNetUnfolder]: 1232/3687 cut-off events. [2022-11-16 11:36:46,046 INFO L131 PetriNetUnfolder]: For 31799/31834 co-relation queries the response was YES. [2022-11-16 11:36:46,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19878 conditions, 3687 events. 1232/3687 cut-off events. For 31799/31834 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30221 event pairs, 113 based on Foata normal form. 15/3686 useless extension candidates. Maximal degree in co-relation 19795. Up to 1023 conditions per place. [2022-11-16 11:36:46,107 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 587 selfloop transitions, 151 changer transitions 31/868 dead transitions. [2022-11-16 11:36:46,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 868 transitions, 12538 flow [2022-11-16 11:36:46,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:36:46,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 11:36:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1363 transitions. [2022-11-16 11:36:46,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6964741951967297 [2022-11-16 11:36:46,111 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1363 transitions. [2022-11-16 11:36:46,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1363 transitions. [2022-11-16 11:36:46,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:46,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1363 transitions. [2022-11-16 11:36:46,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 71.73684210526316) internal successors, (1363), 19 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states 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 11:36:46,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 103.0) internal successors, (2060), 20 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 11:36:46,118 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 103.0) internal successors, (2060), 20 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states 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 11:36:46,118 INFO L175 Difference]: Start difference. First operand has 300 places, 539 transitions, 7615 flow. Second operand 19 states and 1363 transitions. [2022-11-16 11:36:46,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 868 transitions, 12538 flow [2022-11-16 11:36:46,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 868 transitions, 12170 flow, removed 101 selfloop flow, removed 5 redundant places. [2022-11-16 11:36:46,463 INFO L231 Difference]: Finished difference. Result has 326 places, 600 transitions, 8717 flow [2022-11-16 11:36:46,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7337, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8717, PETRI_PLACES=326, PETRI_TRANSITIONS=600} [2022-11-16 11:36:46,464 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 224 predicate places. [2022-11-16 11:36:46,464 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 600 transitions, 8717 flow [2022-11-16 11:36:46,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 11:36:46,465 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:46,465 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:46,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:36:46,466 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:46,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:46,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1338495224, now seen corresponding path program 8 times [2022-11-16 11:36:46,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:46,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486266920] [2022-11-16 11:36:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:46,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:47,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:47,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486266920] [2022-11-16 11:36:47,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486266920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:47,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:47,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064373480] [2022-11-16 11:36:47,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:47,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:47,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:47,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:47,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:47,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:47,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 600 transitions, 8717 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:47,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:47,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:47,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:49,590 INFO L130 PetriNetUnfolder]: 1326/3807 cut-off events. [2022-11-16 11:36:49,590 INFO L131 PetriNetUnfolder]: For 36799/36835 co-relation queries the response was YES. [2022-11-16 11:36:49,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21544 conditions, 3807 events. 1326/3807 cut-off events. For 36799/36835 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30863 event pairs, 240 based on Foata normal form. 11/3798 useless extension candidates. Maximal degree in co-relation 21449. Up to 1950 conditions per place. [2022-11-16 11:36:49,629 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 305 selfloop transitions, 271 changer transitions 20/687 dead transitions. [2022-11-16 11:36:49,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 687 transitions, 11018 flow [2022-11-16 11:36:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:36:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:36:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 954 transitions. [2022-11-16 11:36:49,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6615811373092927 [2022-11-16 11:36:49,632 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 954 transitions. [2022-11-16 11:36:49,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 954 transitions. [2022-11-16 11:36:49,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:49,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 954 transitions. [2022-11-16 11:36:49,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.14285714285714) internal successors, (954), 14 states have internal predecessors, (954), 0 states have call successors, (0), 0 states 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 11:36:49,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:36:49,637 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:36:49,637 INFO L175 Difference]: Start difference. First operand has 326 places, 600 transitions, 8717 flow. Second operand 14 states and 954 transitions. [2022-11-16 11:36:49,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 687 transitions, 11018 flow [2022-11-16 11:36:50,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 687 transitions, 10758 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-16 11:36:50,020 INFO L231 Difference]: Finished difference. Result has 344 places, 626 transitions, 9803 flow [2022-11-16 11:36:50,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=8473, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=248, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9803, PETRI_PLACES=344, PETRI_TRANSITIONS=626} [2022-11-16 11:36:50,022 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 242 predicate places. [2022-11-16 11:36:50,022 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 626 transitions, 9803 flow [2022-11-16 11:36:50,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:50,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:50,023 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:50,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:36:50,023 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:50,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:50,024 INFO L85 PathProgramCache]: Analyzing trace with hash -257739324, now seen corresponding path program 2 times [2022-11-16 11:36:50,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:50,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735006405] [2022-11-16 11:36:50,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:50,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:50,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735006405] [2022-11-16 11:36:50,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735006405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:50,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:50,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414090718] [2022-11-16 11:36:50,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:50,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:50,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:50,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:50,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:50,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:36:50,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 626 transitions, 9803 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:36:50,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:50,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:36:50,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:52,987 INFO L130 PetriNetUnfolder]: 1220/3663 cut-off events. [2022-11-16 11:36:52,987 INFO L131 PetriNetUnfolder]: For 40355/40390 co-relation queries the response was YES. [2022-11-16 11:36:53,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21587 conditions, 3663 events. 1220/3663 cut-off events. For 40355/40390 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 29936 event pairs, 117 based on Foata normal form. 15/3660 useless extension candidates. Maximal degree in co-relation 21483. Up to 1023 conditions per place. [2022-11-16 11:36:53,032 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 573 selfloop transitions, 148 changer transitions 31/852 dead transitions. [2022-11-16 11:36:53,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 852 transitions, 13570 flow [2022-11-16 11:36:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:36:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:36:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1159 transitions. [2022-11-16 11:36:53,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7032766990291263 [2022-11-16 11:36:53,036 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1159 transitions. [2022-11-16 11:36:53,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1159 transitions. [2022-11-16 11:36:53,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:53,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1159 transitions. [2022-11-16 11:36:53,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.4375) internal successors, (1159), 16 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states 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 11:36:53,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 11:36:53,042 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 11:36:53,042 INFO L175 Difference]: Start difference. First operand has 344 places, 626 transitions, 9803 flow. Second operand 16 states and 1159 transitions. [2022-11-16 11:36:53,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 852 transitions, 13570 flow [2022-11-16 11:36:53,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 852 transitions, 13286 flow, removed 129 selfloop flow, removed 2 redundant places. [2022-11-16 11:36:53,429 INFO L231 Difference]: Finished difference. Result has 362 places, 649 transitions, 10378 flow [2022-11-16 11:36:53,429 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9564, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10378, PETRI_PLACES=362, PETRI_TRANSITIONS=649} [2022-11-16 11:36:53,430 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 260 predicate places. [2022-11-16 11:36:53,430 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 649 transitions, 10378 flow [2022-11-16 11:36:53,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:36:53,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:53,431 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:53,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:36:53,431 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:53,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:53,432 INFO L85 PathProgramCache]: Analyzing trace with hash 585973046, now seen corresponding path program 9 times [2022-11-16 11:36:53,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:53,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640495258] [2022-11-16 11:36:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:53,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:54,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:54,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640495258] [2022-11-16 11:36:54,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640495258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:54,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:54,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:54,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315557805] [2022-11-16 11:36:54,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:54,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:54,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:54,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:54,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:54,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:54,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 649 transitions, 10378 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:54,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:54,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:54,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:56,457 INFO L130 PetriNetUnfolder]: 1322/3777 cut-off events. [2022-11-16 11:36:56,457 INFO L131 PetriNetUnfolder]: For 44292/44329 co-relation queries the response was YES. [2022-11-16 11:36:56,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22841 conditions, 3777 events. 1322/3777 cut-off events. For 44292/44329 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30430 event pairs, 160 based on Foata normal form. 12/3767 useless extension candidates. Maximal degree in co-relation 22733. Up to 1130 conditions per place. [2022-11-16 11:36:56,498 INFO L137 encePairwiseOnDemand]: 82/103 looper letters, 497 selfloop transitions, 207 changer transitions 24/819 dead transitions. [2022-11-16 11:36:56,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 819 transitions, 13380 flow [2022-11-16 11:36:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:36:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 840 transitions. [2022-11-16 11:36:56,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7413945278022948 [2022-11-16 11:36:56,501 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 840 transitions. [2022-11-16 11:36:56,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 840 transitions. [2022-11-16 11:36:56,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:56,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 840 transitions. [2022-11-16 11:36:56,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.36363636363636) internal successors, (840), 11 states have internal predecessors, (840), 0 states have call successors, (0), 0 states 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 11:36:56,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:56,506 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:56,506 INFO L175 Difference]: Start difference. First operand has 362 places, 649 transitions, 10378 flow. Second operand 11 states and 840 transitions. [2022-11-16 11:36:56,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 819 transitions, 13380 flow [2022-11-16 11:36:56,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 819 transitions, 13243 flow, removed 27 selfloop flow, removed 5 redundant places. [2022-11-16 11:36:56,919 INFO L231 Difference]: Finished difference. Result has 368 places, 662 transitions, 11107 flow [2022-11-16 11:36:56,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10258, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11107, PETRI_PLACES=368, PETRI_TRANSITIONS=662} [2022-11-16 11:36:56,920 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 266 predicate places. [2022-11-16 11:36:56,920 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 662 transitions, 11107 flow [2022-11-16 11:36:56,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:56,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:36:56,921 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:56,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:36:56,921 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:36:56,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:36:56,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1435410196, now seen corresponding path program 10 times [2022-11-16 11:36:56,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:36:56,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971196214] [2022-11-16 11:36:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:36:56,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:36:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:36:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:36:57,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:36:57,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971196214] [2022-11-16 11:36:57,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971196214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:36:57,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:36:57,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:36:57,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742594072] [2022-11-16 11:36:57,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:36:57,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:36:57,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:36:57,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:36:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:36:57,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:36:57,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 662 transitions, 11107 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:57,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:36:57,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:36:57,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:36:59,875 INFO L130 PetriNetUnfolder]: 1325/3791 cut-off events. [2022-11-16 11:36:59,876 INFO L131 PetriNetUnfolder]: For 49861/49898 co-relation queries the response was YES. [2022-11-16 11:36:59,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23857 conditions, 3791 events. 1325/3791 cut-off events. For 49861/49898 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 30606 event pairs, 163 based on Foata normal form. 13/3782 useless extension candidates. Maximal degree in co-relation 23744. Up to 1130 conditions per place. [2022-11-16 11:36:59,942 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 514 selfloop transitions, 195 changer transitions 20/820 dead transitions. [2022-11-16 11:36:59,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 820 transitions, 14110 flow [2022-11-16 11:36:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:36:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:36:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 817 transitions. [2022-11-16 11:36:59,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7210944395410415 [2022-11-16 11:36:59,944 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 817 transitions. [2022-11-16 11:36:59,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 817 transitions. [2022-11-16 11:36:59,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:36:59,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 817 transitions. [2022-11-16 11:36:59,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.27272727272727) internal successors, (817), 11 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:36:59,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:59,949 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:36:59,949 INFO L175 Difference]: Start difference. First operand has 368 places, 662 transitions, 11107 flow. Second operand 11 states and 817 transitions. [2022-11-16 11:36:59,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 820 transitions, 14110 flow [2022-11-16 11:37:00,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 820 transitions, 13817 flow, removed 40 selfloop flow, removed 5 redundant places. [2022-11-16 11:37:00,347 INFO L231 Difference]: Finished difference. Result has 377 places, 673 transitions, 11609 flow [2022-11-16 11:37:00,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10852, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11609, PETRI_PLACES=377, PETRI_TRANSITIONS=673} [2022-11-16 11:37:00,348 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 275 predicate places. [2022-11-16 11:37:00,348 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 673 transitions, 11609 flow [2022-11-16 11:37:00,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:00,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:00,349 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:00,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:37:00,350 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash 190419652, now seen corresponding path program 11 times [2022-11-16 11:37:00,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:00,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679413545] [2022-11-16 11:37:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:01,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:01,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679413545] [2022-11-16 11:37:01,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679413545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:01,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:01,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:01,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839382727] [2022-11-16 11:37:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:01,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:01,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:01,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:01,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 673 transitions, 11609 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:01,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:01,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:01,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:03,319 INFO L130 PetriNetUnfolder]: 1325/3795 cut-off events. [2022-11-16 11:37:03,320 INFO L131 PetriNetUnfolder]: For 52163/52200 co-relation queries the response was YES. [2022-11-16 11:37:03,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24185 conditions, 3795 events. 1325/3795 cut-off events. For 52163/52200 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30684 event pairs, 160 based on Foata normal form. 13/3786 useless extension candidates. Maximal degree in co-relation 24069. Up to 1130 conditions per place. [2022-11-16 11:37:03,371 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 509 selfloop transitions, 206 changer transitions 21/827 dead transitions. [2022-11-16 11:37:03,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 827 transitions, 14445 flow [2022-11-16 11:37:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:37:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:37:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2022-11-16 11:37:03,373 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7281553398058253 [2022-11-16 11:37:03,373 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2022-11-16 11:37:03,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2022-11-16 11:37:03,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:03,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2022-11-16 11:37:03,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 11:37:03,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:03,378 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:03,378 INFO L175 Difference]: Start difference. First operand has 377 places, 673 transitions, 11609 flow. Second operand 11 states and 825 transitions. [2022-11-16 11:37:03,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 827 transitions, 14445 flow [2022-11-16 11:37:03,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 827 transitions, 14151 flow, removed 16 selfloop flow, removed 5 redundant places. [2022-11-16 11:37:03,816 INFO L231 Difference]: Finished difference. Result has 385 places, 678 transitions, 11950 flow [2022-11-16 11:37:03,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11318, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11950, PETRI_PLACES=385, PETRI_TRANSITIONS=678} [2022-11-16 11:37:03,818 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 283 predicate places. [2022-11-16 11:37:03,818 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 678 transitions, 11950 flow [2022-11-16 11:37:03,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:03,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:03,819 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:03,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:37:03,819 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:03,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1268676832, now seen corresponding path program 12 times [2022-11-16 11:37:03,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:03,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000962020] [2022-11-16 11:37:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:03,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:04,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:04,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000962020] [2022-11-16 11:37:04,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000962020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:04,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:04,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597933351] [2022-11-16 11:37:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:04,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:04,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:04,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:04,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:04,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 678 transitions, 11950 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:04,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:04,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:04,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:06,558 INFO L130 PetriNetUnfolder]: 1335/3807 cut-off events. [2022-11-16 11:37:06,558 INFO L131 PetriNetUnfolder]: For 55318/55354 co-relation queries the response was YES. [2022-11-16 11:37:06,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24646 conditions, 3807 events. 1335/3807 cut-off events. For 55318/55354 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 30730 event pairs, 237 based on Foata normal form. 12/3793 useless extension candidates. Maximal degree in co-relation 24527. Up to 1964 conditions per place. [2022-11-16 11:37:06,587 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 370 selfloop transitions, 276 changer transitions 17/754 dead transitions. [2022-11-16 11:37:06,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 754 transitions, 14080 flow [2022-11-16 11:37:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:37:06,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:37:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 710 transitions. [2022-11-16 11:37:06,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6893203883495146 [2022-11-16 11:37:06,588 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 710 transitions. [2022-11-16 11:37:06,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 710 transitions. [2022-11-16 11:37:06,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:06,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 710 transitions. [2022-11-16 11:37:06,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.0) internal successors, (710), 10 states have internal predecessors, (710), 0 states have call successors, (0), 0 states 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 11:37:06,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:06,592 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:06,592 INFO L175 Difference]: Start difference. First operand has 385 places, 678 transitions, 11950 flow. Second operand 10 states and 710 transitions. [2022-11-16 11:37:06,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 754 transitions, 14080 flow [2022-11-16 11:37:06,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 754 transitions, 13756 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-16 11:37:06,990 INFO L231 Difference]: Finished difference. Result has 393 places, 691 transitions, 12460 flow [2022-11-16 11:37:06,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11627, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12460, PETRI_PLACES=393, PETRI_TRANSITIONS=691} [2022-11-16 11:37:06,991 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 291 predicate places. [2022-11-16 11:37:06,991 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 691 transitions, 12460 flow [2022-11-16 11:37:06,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:06,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:06,992 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:06,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:37:06,992 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash -335138370, now seen corresponding path program 13 times [2022-11-16 11:37:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:06,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449808212] [2022-11-16 11:37:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:06,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:07,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:07,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449808212] [2022-11-16 11:37:07,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449808212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:07,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:07,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:07,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987411006] [2022-11-16 11:37:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:07,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:07,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:07,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:07,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 691 transitions, 12460 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:07,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:07,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:07,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:10,147 INFO L130 PetriNetUnfolder]: 1342/3826 cut-off events. [2022-11-16 11:37:10,147 INFO L131 PetriNetUnfolder]: For 59124/59160 co-relation queries the response was YES. [2022-11-16 11:37:10,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25172 conditions, 3826 events. 1342/3826 cut-off events. For 59124/59160 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30936 event pairs, 238 based on Foata normal form. 12/3812 useless extension candidates. Maximal degree in co-relation 25048. Up to 1971 conditions per place. [2022-11-16 11:37:10,190 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 358 selfloop transitions, 296 changer transitions 17/762 dead transitions. [2022-11-16 11:37:10,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 762 transitions, 14642 flow [2022-11-16 11:37:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:37:10,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:37:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 957 transitions. [2022-11-16 11:37:10,193 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6636615811373093 [2022-11-16 11:37:10,193 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 957 transitions. [2022-11-16 11:37:10,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 957 transitions. [2022-11-16 11:37:10,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:10,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 957 transitions. [2022-11-16 11:37:10,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.35714285714286) internal successors, (957), 14 states have internal predecessors, (957), 0 states have call successors, (0), 0 states 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 11:37:10,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:37:10,198 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:37:10,198 INFO L175 Difference]: Start difference. First operand has 393 places, 691 transitions, 12460 flow. Second operand 14 states and 957 transitions. [2022-11-16 11:37:10,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 762 transitions, 14642 flow [2022-11-16 11:37:10,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 762 transitions, 14139 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-16 11:37:10,675 INFO L231 Difference]: Finished difference. Result has 407 places, 703 transitions, 12916 flow [2022-11-16 11:37:10,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=11967, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=284, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12916, PETRI_PLACES=407, PETRI_TRANSITIONS=703} [2022-11-16 11:37:10,676 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 305 predicate places. [2022-11-16 11:37:10,676 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 703 transitions, 12916 flow [2022-11-16 11:37:10,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:10,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:10,677 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:10,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:37:10,677 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:10,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash -514006304, now seen corresponding path program 14 times [2022-11-16 11:37:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:10,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849376102] [2022-11-16 11:37:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:11,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849376102] [2022-11-16 11:37:11,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849376102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:11,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:11,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:11,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710938182] [2022-11-16 11:37:11,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:11,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:11,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:11,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:11,386 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:11,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 703 transitions, 12916 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:11,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:11,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:11,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:13,417 INFO L130 PetriNetUnfolder]: 1341/3836 cut-off events. [2022-11-16 11:37:13,418 INFO L131 PetriNetUnfolder]: For 60101/60137 co-relation queries the response was YES. [2022-11-16 11:37:13,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25311 conditions, 3836 events. 1341/3836 cut-off events. For 60101/60137 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 31125 event pairs, 207 based on Foata normal form. 12/3824 useless extension candidates. Maximal degree in co-relation 25182. Up to 1999 conditions per place. [2022-11-16 11:37:13,459 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 363 selfloop transitions, 305 changer transitions 17/776 dead transitions. [2022-11-16 11:37:13,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 776 transitions, 14962 flow [2022-11-16 11:37:13,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:37:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:37:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 792 transitions. [2022-11-16 11:37:13,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6990291262135923 [2022-11-16 11:37:13,460 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 792 transitions. [2022-11-16 11:37:13,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 792 transitions. [2022-11-16 11:37:13,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:13,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 792 transitions. [2022-11-16 11:37:13,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 0 states have call successors, (0), 0 states 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 11:37:13,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:13,465 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:13,465 INFO L175 Difference]: Start difference. First operand has 407 places, 703 transitions, 12916 flow. Second operand 11 states and 792 transitions. [2022-11-16 11:37:13,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 776 transitions, 14962 flow [2022-11-16 11:37:13,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 776 transitions, 14395 flow, removed 12 selfloop flow, removed 9 redundant places. [2022-11-16 11:37:13,985 INFO L231 Difference]: Finished difference. Result has 410 places, 705 transitions, 13017 flow [2022-11-16 11:37:13,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12351, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13017, PETRI_PLACES=410, PETRI_TRANSITIONS=705} [2022-11-16 11:37:13,986 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 308 predicate places. [2022-11-16 11:37:13,986 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 705 transitions, 13017 flow [2022-11-16 11:37:13,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:13,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:13,987 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:37:13,987 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:13,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1774891774, now seen corresponding path program 15 times [2022-11-16 11:37:13,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006989256] [2022-11-16 11:37:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:14,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:14,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006989256] [2022-11-16 11:37:14,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006989256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:14,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:14,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:14,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487574073] [2022-11-16 11:37:14,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:14,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:14,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:14,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:14,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:14,703 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:14,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 705 transitions, 13017 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:14,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:14,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:14,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:16,828 INFO L130 PetriNetUnfolder]: 1340/3826 cut-off events. [2022-11-16 11:37:16,828 INFO L131 PetriNetUnfolder]: For 60667/60703 co-relation queries the response was YES. [2022-11-16 11:37:16,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25464 conditions, 3826 events. 1340/3826 cut-off events. For 60667/60703 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 30937 event pairs, 239 based on Foata normal form. 12/3812 useless extension candidates. Maximal degree in co-relation 25334. Up to 1971 conditions per place. [2022-11-16 11:37:16,871 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 366 selfloop transitions, 296 changer transitions 17/770 dead transitions. [2022-11-16 11:37:16,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 770 transitions, 15132 flow [2022-11-16 11:37:16,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:37:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:37:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 897 transitions. [2022-11-16 11:37:16,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6699029126213593 [2022-11-16 11:37:16,873 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 897 transitions. [2022-11-16 11:37:16,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 897 transitions. [2022-11-16 11:37:16,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:16,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 897 transitions. [2022-11-16 11:37:16,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.0) internal successors, (897), 13 states have internal predecessors, (897), 0 states have call successors, (0), 0 states 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 11:37:16,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:37:16,877 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:37:16,877 INFO L175 Difference]: Start difference. First operand has 410 places, 705 transitions, 13017 flow. Second operand 13 states and 897 transitions. [2022-11-16 11:37:16,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 770 transitions, 15132 flow [2022-11-16 11:37:17,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 770 transitions, 14506 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-11-16 11:37:17,616 INFO L231 Difference]: Finished difference. Result has 419 places, 714 transitions, 13312 flow [2022-11-16 11:37:17,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12411, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=287, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13312, PETRI_PLACES=419, PETRI_TRANSITIONS=714} [2022-11-16 11:37:17,619 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 317 predicate places. [2022-11-16 11:37:17,619 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 714 transitions, 13312 flow [2022-11-16 11:37:17,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:17,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:17,619 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:17,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:37:17,620 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:17,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:17,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1523905104, now seen corresponding path program 16 times [2022-11-16 11:37:17,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:17,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776440983] [2022-11-16 11:37:17,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:17,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:18,287 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:18,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:18,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776440983] [2022-11-16 11:37:18,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776440983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:18,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:18,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:18,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941754959] [2022-11-16 11:37:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:18,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:18,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:18,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:18,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:18,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:18,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 714 transitions, 13312 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:18,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:18,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:18,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:20,221 INFO L130 PetriNetUnfolder]: 1345/3840 cut-off events. [2022-11-16 11:37:20,221 INFO L131 PetriNetUnfolder]: For 61382/61418 co-relation queries the response was YES. [2022-11-16 11:37:20,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25521 conditions, 3840 events. 1345/3840 cut-off events. For 61382/61418 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 31143 event pairs, 218 based on Foata normal form. 12/3826 useless extension candidates. Maximal degree in co-relation 25388. Up to 1993 conditions per place. [2022-11-16 11:37:20,267 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 376 selfloop transitions, 300 changer transitions 18/785 dead transitions. [2022-11-16 11:37:20,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 785 transitions, 15465 flow [2022-11-16 11:37:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:37:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:37:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 720 transitions. [2022-11-16 11:37:20,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6990291262135923 [2022-11-16 11:37:20,272 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 720 transitions. [2022-11-16 11:37:20,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 720 transitions. [2022-11-16 11:37:20,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:20,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 720 transitions. [2022-11-16 11:37:20,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:20,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:20,275 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:20,275 INFO L175 Difference]: Start difference. First operand has 419 places, 714 transitions, 13312 flow. Second operand 10 states and 720 transitions. [2022-11-16 11:37:20,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 785 transitions, 15465 flow [2022-11-16 11:37:20,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 785 transitions, 14878 flow, removed 12 selfloop flow, removed 8 redundant places. [2022-11-16 11:37:20,940 INFO L231 Difference]: Finished difference. Result has 424 places, 722 transitions, 13559 flow [2022-11-16 11:37:20,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12736, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13559, PETRI_PLACES=424, PETRI_TRANSITIONS=722} [2022-11-16 11:37:20,942 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 322 predicate places. [2022-11-16 11:37:20,942 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 722 transitions, 13559 flow [2022-11-16 11:37:20,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:20,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:20,943 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:20,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:37:20,943 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1526071648, now seen corresponding path program 17 times [2022-11-16 11:37:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:20,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678164234] [2022-11-16 11:37:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:21,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:21,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678164234] [2022-11-16 11:37:21,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678164234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:21,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:21,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253358889] [2022-11-16 11:37:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:21,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:21,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:21,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 722 transitions, 13559 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:21,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:21,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:21,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:23,854 INFO L130 PetriNetUnfolder]: 1345/3844 cut-off events. [2022-11-16 11:37:23,854 INFO L131 PetriNetUnfolder]: For 63128/63164 co-relation queries the response was YES. [2022-11-16 11:37:23,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25704 conditions, 3844 events. 1345/3844 cut-off events. For 63128/63164 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 31174 event pairs, 217 based on Foata normal form. 12/3830 useless extension candidates. Maximal degree in co-relation 25569. Up to 1995 conditions per place. [2022-11-16 11:37:23,887 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 372 selfloop transitions, 309 changer transitions 18/790 dead transitions. [2022-11-16 11:37:23,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 790 transitions, 15682 flow [2022-11-16 11:37:23,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:37:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:37:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 905 transitions. [2022-11-16 11:37:23,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6758775205377147 [2022-11-16 11:37:23,889 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 905 transitions. [2022-11-16 11:37:23,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 905 transitions. [2022-11-16 11:37:23,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:23,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 905 transitions. [2022-11-16 11:37:23,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.61538461538461) internal successors, (905), 13 states have internal predecessors, (905), 0 states have call successors, (0), 0 states 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 11:37:23,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:37:23,893 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:37:23,893 INFO L175 Difference]: Start difference. First operand has 424 places, 722 transitions, 13559 flow. Second operand 13 states and 905 transitions. [2022-11-16 11:37:23,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 790 transitions, 15682 flow [2022-11-16 11:37:24,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 790 transitions, 15108 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-11-16 11:37:24,436 INFO L231 Difference]: Finished difference. Result has 434 places, 729 transitions, 13863 flow [2022-11-16 11:37:24,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=12994, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13863, PETRI_PLACES=434, PETRI_TRANSITIONS=729} [2022-11-16 11:37:24,438 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 332 predicate places. [2022-11-16 11:37:24,438 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 729 transitions, 13863 flow [2022-11-16 11:37:24,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:37:24,439 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:24,439 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:24,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:37:24,439 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash -150731938, now seen corresponding path program 1 times [2022-11-16 11:37:24,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:24,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302241608] [2022-11-16 11:37:24,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:24,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:25,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:25,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302241608] [2022-11-16 11:37:25,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302241608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:25,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:25,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:25,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329104974] [2022-11-16 11:37:25,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:25,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:25,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:25,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:25,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:37:25,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 729 transitions, 13863 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:25,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:25,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:37:25,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:28,648 INFO L130 PetriNetUnfolder]: 1398/4077 cut-off events. [2022-11-16 11:37:28,649 INFO L131 PetriNetUnfolder]: For 70377/70419 co-relation queries the response was YES. [2022-11-16 11:37:28,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27230 conditions, 4077 events. 1398/4077 cut-off events. For 70377/70419 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 33926 event pairs, 146 based on Foata normal form. 21/4084 useless extension candidates. Maximal degree in co-relation 27092. Up to 1089 conditions per place. [2022-11-16 11:37:28,853 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 771 selfloop transitions, 130 changer transitions 19/1025 dead transitions. [2022-11-16 11:37:28,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1025 transitions, 19038 flow [2022-11-16 11:37:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:37:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:37:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 937 transitions. [2022-11-16 11:37:28,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7580906148867314 [2022-11-16 11:37:28,854 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 937 transitions. [2022-11-16 11:37:28,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 937 transitions. [2022-11-16 11:37:28,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:28,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 937 transitions. [2022-11-16 11:37:28,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 78.08333333333333) internal successors, (937), 12 states have internal predecessors, (937), 0 states have call successors, (0), 0 states 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 11:37:28,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:37:28,857 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:37:28,857 INFO L175 Difference]: Start difference. First operand has 434 places, 729 transitions, 13863 flow. Second operand 12 states and 937 transitions. [2022-11-16 11:37:28,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1025 transitions, 19038 flow [2022-11-16 11:37:29,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 1025 transitions, 18389 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-16 11:37:29,387 INFO L231 Difference]: Finished difference. Result has 446 places, 803 transitions, 14926 flow [2022-11-16 11:37:29,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=13272, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=14926, PETRI_PLACES=446, PETRI_TRANSITIONS=803} [2022-11-16 11:37:29,389 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 344 predicate places. [2022-11-16 11:37:29,389 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 803 transitions, 14926 flow [2022-11-16 11:37:29,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:29,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:29,390 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:29,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:37:29,390 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:29,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash -347285014, now seen corresponding path program 2 times [2022-11-16 11:37:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:29,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562620776] [2022-11-16 11:37:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:29,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:30,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562620776] [2022-11-16 11:37:30,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562620776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:30,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:30,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806257794] [2022-11-16 11:37:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:30,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:30,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:37:30,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 803 transitions, 14926 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:30,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:30,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:37:30,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:33,194 INFO L130 PetriNetUnfolder]: 1482/4303 cut-off events. [2022-11-16 11:37:33,194 INFO L131 PetriNetUnfolder]: For 79405/79489 co-relation queries the response was YES. [2022-11-16 11:37:33,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29207 conditions, 4303 events. 1482/4303 cut-off events. For 79405/79489 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 36348 event pairs, 165 based on Foata normal form. 47/4338 useless extension candidates. Maximal degree in co-relation 29061. Up to 2191 conditions per place. [2022-11-16 11:37:33,248 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 698 selfloop transitions, 154 changer transitions 22/979 dead transitions. [2022-11-16 11:37:33,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 979 transitions, 19636 flow [2022-11-16 11:37:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:37:33,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:37:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 758 transitions. [2022-11-16 11:37:33,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7359223300970874 [2022-11-16 11:37:33,251 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 758 transitions. [2022-11-16 11:37:33,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 758 transitions. [2022-11-16 11:37:33,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:33,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 758 transitions. [2022-11-16 11:37:33,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.8) internal successors, (758), 10 states have internal predecessors, (758), 0 states have call successors, (0), 0 states 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 11:37:33,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:33,254 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:37:33,254 INFO L175 Difference]: Start difference. First operand has 446 places, 803 transitions, 14926 flow. Second operand 10 states and 758 transitions. [2022-11-16 11:37:33,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 979 transitions, 19636 flow [2022-11-16 11:37:34,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 979 transitions, 19349 flow, removed 21 selfloop flow, removed 2 redundant places. [2022-11-16 11:37:34,030 INFO L231 Difference]: Finished difference. Result has 456 places, 846 transitions, 16605 flow [2022-11-16 11:37:34,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=14704, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16605, PETRI_PLACES=456, PETRI_TRANSITIONS=846} [2022-11-16 11:37:34,031 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 354 predicate places. [2022-11-16 11:37:34,032 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 846 transitions, 16605 flow [2022-11-16 11:37:34,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:34,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:34,033 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:34,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:37:34,033 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:34,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1592392306, now seen corresponding path program 3 times [2022-11-16 11:37:34,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:34,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575027067] [2022-11-16 11:37:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:35,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:35,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575027067] [2022-11-16 11:37:35,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575027067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:35,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:35,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:35,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29777114] [2022-11-16 11:37:35,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:35,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:35,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:35,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:37:35,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 846 transitions, 16605 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:35,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:35,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:37:35,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:38,291 INFO L130 PetriNetUnfolder]: 1682/4812 cut-off events. [2022-11-16 11:37:38,291 INFO L131 PetriNetUnfolder]: For 101364/101472 co-relation queries the response was YES. [2022-11-16 11:37:38,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33176 conditions, 4812 events. 1682/4812 cut-off events. For 101364/101472 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 41518 event pairs, 175 based on Foata normal form. 67/4866 useless extension candidates. Maximal degree in co-relation 33027. Up to 2249 conditions per place. [2022-11-16 11:37:38,359 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 740 selfloop transitions, 216 changer transitions 7/1068 dead transitions. [2022-11-16 11:37:38,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1068 transitions, 22041 flow [2022-11-16 11:37:38,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:37:38,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:37:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 835 transitions. [2022-11-16 11:37:38,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.736981465136805 [2022-11-16 11:37:38,362 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 835 transitions. [2022-11-16 11:37:38,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 835 transitions. [2022-11-16 11:37:38,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:38,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 835 transitions. [2022-11-16 11:37:38,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.9090909090909) internal successors, (835), 11 states have internal predecessors, (835), 0 states have call successors, (0), 0 states 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 11:37:38,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:38,364 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:38,364 INFO L175 Difference]: Start difference. First operand has 456 places, 846 transitions, 16605 flow. Second operand 11 states and 835 transitions. [2022-11-16 11:37:38,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1068 transitions, 22041 flow [2022-11-16 11:37:39,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 1068 transitions, 21942 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-16 11:37:39,217 INFO L231 Difference]: Finished difference. Result has 469 places, 919 transitions, 19306 flow [2022-11-16 11:37:39,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=16522, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19306, PETRI_PLACES=469, PETRI_TRANSITIONS=919} [2022-11-16 11:37:39,218 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 367 predicate places. [2022-11-16 11:37:39,218 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 919 transitions, 19306 flow [2022-11-16 11:37:39,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:39,218 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:39,218 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:39,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:37:39,219 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:39,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash 474152802, now seen corresponding path program 4 times [2022-11-16 11:37:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:39,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850273584] [2022-11-16 11:37:39,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:39,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:40,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:40,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850273584] [2022-11-16 11:37:40,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850273584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:40,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:40,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:37:40,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173275671] [2022-11-16 11:37:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:40,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:37:40,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:37:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:37:40,804 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:37:40,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 919 transitions, 19306 flow. Second operand has 11 states, 11 states have (on average 60.36363636363637) internal successors, (664), 11 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 11:37:40,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:40,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:37:40,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:44,108 INFO L130 PetriNetUnfolder]: 1866/5334 cut-off events. [2022-11-16 11:37:44,108 INFO L131 PetriNetUnfolder]: For 133018/133076 co-relation queries the response was YES. [2022-11-16 11:37:44,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37811 conditions, 5334 events. 1866/5334 cut-off events. For 133018/133076 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 46900 event pairs, 209 based on Foata normal form. 61/5385 useless extension candidates. Maximal degree in co-relation 37654. Up to 2246 conditions per place. [2022-11-16 11:37:44,203 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 785 selfloop transitions, 263 changer transitions 7/1158 dead transitions. [2022-11-16 11:37:44,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1158 transitions, 25292 flow [2022-11-16 11:37:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:37:44,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:37:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 823 transitions. [2022-11-16 11:37:44,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7263901147396293 [2022-11-16 11:37:44,205 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 823 transitions. [2022-11-16 11:37:44,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 823 transitions. [2022-11-16 11:37:44,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:44,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 823 transitions. [2022-11-16 11:37:44,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.81818181818181) internal successors, (823), 11 states have internal predecessors, (823), 0 states have call successors, (0), 0 states 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 11:37:44,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:44,208 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:37:44,208 INFO L175 Difference]: Start difference. First operand has 469 places, 919 transitions, 19306 flow. Second operand 11 states and 823 transitions. [2022-11-16 11:37:44,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1158 transitions, 25292 flow [2022-11-16 11:37:45,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 1158 transitions, 25121 flow, removed 51 selfloop flow, removed 3 redundant places. [2022-11-16 11:37:45,163 INFO L231 Difference]: Finished difference. Result has 485 places, 995 transitions, 22384 flow [2022-11-16 11:37:45,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=19151, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22384, PETRI_PLACES=485, PETRI_TRANSITIONS=995} [2022-11-16 11:37:45,164 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 383 predicate places. [2022-11-16 11:37:45,164 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 995 transitions, 22384 flow [2022-11-16 11:37:45,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 60.36363636363637) internal successors, (664), 11 states have internal predecessors, (664), 0 states have call successors, (0), 0 states 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 11:37:45,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:45,164 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:45,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:37:45,165 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1681198856, now seen corresponding path program 5 times [2022-11-16 11:37:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:45,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799327067] [2022-11-16 11:37:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:45,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799327067] [2022-11-16 11:37:46,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799327067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:46,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:46,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092808790] [2022-11-16 11:37:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:46,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:46,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:46,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:46,749 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:37:46,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 995 transitions, 22384 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:46,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:46,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:37:46,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:51,246 INFO L130 PetriNetUnfolder]: 2088/5925 cut-off events. [2022-11-16 11:37:51,247 INFO L131 PetriNetUnfolder]: For 184199/184390 co-relation queries the response was YES. [2022-11-16 11:37:51,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43863 conditions, 5925 events. 2088/5925 cut-off events. For 184199/184390 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 53824 event pairs, 223 based on Foata normal form. 118/6030 useless extension candidates. Maximal degree in co-relation 43698. Up to 2719 conditions per place. [2022-11-16 11:37:51,377 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 841 selfloop transitions, 311 changer transitions 15/1272 dead transitions. [2022-11-16 11:37:51,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1272 transitions, 30250 flow [2022-11-16 11:37:51,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:37:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:37:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1107 transitions. [2022-11-16 11:37:51,380 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7165048543689321 [2022-11-16 11:37:51,381 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1107 transitions. [2022-11-16 11:37:51,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1107 transitions. [2022-11-16 11:37:51,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:51,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1107 transitions. [2022-11-16 11:37:51,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.8) internal successors, (1107), 15 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states 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 11:37:51,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:37:51,386 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:37:51,386 INFO L175 Difference]: Start difference. First operand has 485 places, 995 transitions, 22384 flow. Second operand 15 states and 1107 transitions. [2022-11-16 11:37:51,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1272 transitions, 30250 flow [2022-11-16 11:37:52,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1272 transitions, 30074 flow, removed 78 selfloop flow, removed 1 redundant places. [2022-11-16 11:37:52,775 INFO L231 Difference]: Finished difference. Result has 502 places, 1086 transitions, 26396 flow [2022-11-16 11:37:52,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=22266, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=995, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26396, PETRI_PLACES=502, PETRI_TRANSITIONS=1086} [2022-11-16 11:37:52,776 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 400 predicate places. [2022-11-16 11:37:52,776 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1086 transitions, 26396 flow [2022-11-16 11:37:52,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:52,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:37:52,777 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:37:52,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:37:52,777 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:37:52,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:37:52,777 INFO L85 PathProgramCache]: Analyzing trace with hash 778130330, now seen corresponding path program 6 times [2022-11-16 11:37:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:37:52,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900543118] [2022-11-16 11:37:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:37:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:37:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:37:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:37:54,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:37:54,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900543118] [2022-11-16 11:37:54,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900543118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:37:54,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:37:54,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:37:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176190058] [2022-11-16 11:37:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:37:54,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:37:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:37:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:37:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:37:54,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:37:54,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1086 transitions, 26396 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:37:54,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:37:54,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:37:54,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:37:58,949 INFO L130 PetriNetUnfolder]: 2201/6295 cut-off events. [2022-11-16 11:37:58,949 INFO L131 PetriNetUnfolder]: For 217979/218178 co-relation queries the response was YES. [2022-11-16 11:37:59,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47540 conditions, 6295 events. 2201/6295 cut-off events. For 217979/218178 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 58408 event pairs, 211 based on Foata normal form. 109/6392 useless extension candidates. Maximal degree in co-relation 47371. Up to 2610 conditions per place. [2022-11-16 11:37:59,086 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 822 selfloop transitions, 397 changer transitions 14/1338 dead transitions. [2022-11-16 11:37:59,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 1338 transitions, 33166 flow [2022-11-16 11:37:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:37:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:37:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1061 transitions. [2022-11-16 11:37:59,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7357836338418863 [2022-11-16 11:37:59,087 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1061 transitions. [2022-11-16 11:37:59,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1061 transitions. [2022-11-16 11:37:59,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:37:59,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1061 transitions. [2022-11-16 11:37:59,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.78571428571429) internal successors, (1061), 14 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states 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 11:37:59,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:37:59,091 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:37:59,091 INFO L175 Difference]: Start difference. First operand has 502 places, 1086 transitions, 26396 flow. Second operand 14 states and 1061 transitions. [2022-11-16 11:37:59,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 1338 transitions, 33166 flow [2022-11-16 11:38:00,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1338 transitions, 32946 flow, removed 66 selfloop flow, removed 4 redundant places. [2022-11-16 11:38:00,864 INFO L231 Difference]: Finished difference. Result has 518 places, 1150 transitions, 29585 flow [2022-11-16 11:38:00,865 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=26189, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29585, PETRI_PLACES=518, PETRI_TRANSITIONS=1150} [2022-11-16 11:38:00,866 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 416 predicate places. [2022-11-16 11:38:00,866 INFO L495 AbstractCegarLoop]: Abstraction has has 518 places, 1150 transitions, 29585 flow [2022-11-16 11:38:00,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:00,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:00,866 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:00,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:38:00,866 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:00,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:00,867 INFO L85 PathProgramCache]: Analyzing trace with hash 841263638, now seen corresponding path program 7 times [2022-11-16 11:38:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:00,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890389727] [2022-11-16 11:38:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:00,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:02,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:02,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890389727] [2022-11-16 11:38:02,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890389727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:02,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:02,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941665456] [2022-11-16 11:38:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:02,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:02,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:02,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:02,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:02,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 1150 transitions, 29585 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:02,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:02,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:02,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:07,143 INFO L130 PetriNetUnfolder]: 2277/6508 cut-off events. [2022-11-16 11:38:07,144 INFO L131 PetriNetUnfolder]: For 247519/247731 co-relation queries the response was YES. [2022-11-16 11:38:07,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50576 conditions, 6508 events. 2277/6508 cut-off events. For 247519/247731 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 60931 event pairs, 242 based on Foata normal form. 93/6590 useless extension candidates. Maximal degree in co-relation 50400. Up to 2433 conditions per place. [2022-11-16 11:38:07,279 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 791 selfloop transitions, 472 changer transitions 14/1382 dead transitions. [2022-11-16 11:38:07,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1382 transitions, 35872 flow [2022-11-16 11:38:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:38:07,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:38:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1119 transitions. [2022-11-16 11:38:07,281 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7242718446601941 [2022-11-16 11:38:07,281 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1119 transitions. [2022-11-16 11:38:07,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1119 transitions. [2022-11-16 11:38:07,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:07,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1119 transitions. [2022-11-16 11:38:07,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.6) internal successors, (1119), 15 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states 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 11:38:07,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:38:07,285 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:38:07,285 INFO L175 Difference]: Start difference. First operand has 518 places, 1150 transitions, 29585 flow. Second operand 15 states and 1119 transitions. [2022-11-16 11:38:07,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1382 transitions, 35872 flow [2022-11-16 11:38:09,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 1382 transitions, 35129 flow, removed 98 selfloop flow, removed 5 redundant places. [2022-11-16 11:38:09,336 INFO L231 Difference]: Finished difference. Result has 536 places, 1200 transitions, 31977 flow [2022-11-16 11:38:09,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=28906, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=421, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31977, PETRI_PLACES=536, PETRI_TRANSITIONS=1200} [2022-11-16 11:38:09,338 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 434 predicate places. [2022-11-16 11:38:09,338 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 1200 transitions, 31977 flow [2022-11-16 11:38:09,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:09,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:09,338 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:09,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:38:09,339 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2044574426, now seen corresponding path program 8 times [2022-11-16 11:38:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:09,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778297068] [2022-11-16 11:38:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:09,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:10,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:10,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778297068] [2022-11-16 11:38:10,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778297068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:10,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:10,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:10,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338137904] [2022-11-16 11:38:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:10,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:10,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:10,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:10,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:10,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:10,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 1200 transitions, 31977 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:10,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:10,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:10,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:15,635 INFO L130 PetriNetUnfolder]: 2259/6442 cut-off events. [2022-11-16 11:38:15,635 INFO L131 PetriNetUnfolder]: For 255323/255565 co-relation queries the response was YES. [2022-11-16 11:38:15,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51183 conditions, 6442 events. 2259/6442 cut-off events. For 255323/255565 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 60271 event pairs, 277 based on Foata normal form. 135/6564 useless extension candidates. Maximal degree in co-relation 50998. Up to 2958 conditions per place. [2022-11-16 11:38:15,741 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 860 selfloop transitions, 358 changer transitions 10/1333 dead transitions. [2022-11-16 11:38:15,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1333 transitions, 35980 flow [2022-11-16 11:38:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:38:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:38:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 830 transitions. [2022-11-16 11:38:15,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.732568402471315 [2022-11-16 11:38:15,743 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 830 transitions. [2022-11-16 11:38:15,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 830 transitions. [2022-11-16 11:38:15,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:15,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 830 transitions. [2022-11-16 11:38:15,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.45454545454545) internal successors, (830), 11 states have internal predecessors, (830), 0 states have call successors, (0), 0 states 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 11:38:15,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:38:15,746 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:38:15,746 INFO L175 Difference]: Start difference. First operand has 536 places, 1200 transitions, 31977 flow. Second operand 11 states and 830 transitions. [2022-11-16 11:38:15,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1333 transitions, 35980 flow [2022-11-16 11:38:17,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 1333 transitions, 35325 flow, removed 94 selfloop flow, removed 4 redundant places. [2022-11-16 11:38:17,863 INFO L231 Difference]: Finished difference. Result has 545 places, 1200 transitions, 32163 flow [2022-11-16 11:38:17,864 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=31322, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32163, PETRI_PLACES=545, PETRI_TRANSITIONS=1200} [2022-11-16 11:38:17,864 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 443 predicate places. [2022-11-16 11:38:17,864 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 1200 transitions, 32163 flow [2022-11-16 11:38:17,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:17,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:17,865 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:17,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:38:17,865 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:17,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:17,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1066179186, now seen corresponding path program 9 times [2022-11-16 11:38:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:17,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302517745] [2022-11-16 11:38:17,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:17,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:19,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:19,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302517745] [2022-11-16 11:38:19,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302517745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:19,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:19,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:19,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178089535] [2022-11-16 11:38:19,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:19,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:19,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:19,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:19,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:19,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 1200 transitions, 32163 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:19,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:19,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:19,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:24,432 INFO L130 PetriNetUnfolder]: 2324/6647 cut-off events. [2022-11-16 11:38:24,432 INFO L131 PetriNetUnfolder]: For 269762/269980 co-relation queries the response was YES. [2022-11-16 11:38:24,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53425 conditions, 6647 events. 2324/6647 cut-off events. For 269762/269980 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 62757 event pairs, 213 based on Foata normal form. 106/6741 useless extension candidates. Maximal degree in co-relation 53238. Up to 2740 conditions per place. [2022-11-16 11:38:24,562 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 831 selfloop transitions, 462 changer transitions 12/1410 dead transitions. [2022-11-16 11:38:24,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 559 places, 1410 transitions, 38202 flow [2022-11-16 11:38:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:38:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:38:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1117 transitions. [2022-11-16 11:38:24,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7229773462783171 [2022-11-16 11:38:24,565 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1117 transitions. [2022-11-16 11:38:24,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1117 transitions. [2022-11-16 11:38:24,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:24,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1117 transitions. [2022-11-16 11:38:24,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.46666666666667) internal successors, (1117), 15 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states 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 11:38:24,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:38:24,570 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 103.0) internal successors, (1648), 16 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states 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 11:38:24,570 INFO L175 Difference]: Start difference. First operand has 545 places, 1200 transitions, 32163 flow. Second operand 15 states and 1117 transitions. [2022-11-16 11:38:24,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 559 places, 1410 transitions, 38202 flow [2022-11-16 11:38:26,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 1410 transitions, 37306 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-11-16 11:38:26,826 INFO L231 Difference]: Finished difference. Result has 557 places, 1229 transitions, 33873 flow [2022-11-16 11:38:26,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=31324, PETRI_DIFFERENCE_MINUEND_PLACES=539, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=33873, PETRI_PLACES=557, PETRI_TRANSITIONS=1229} [2022-11-16 11:38:26,828 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 455 predicate places. [2022-11-16 11:38:26,828 INFO L495 AbstractCegarLoop]: Abstraction has has 557 places, 1229 transitions, 33873 flow [2022-11-16 11:38:26,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:26,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:26,829 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:26,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:38:26,829 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash 118517620, now seen corresponding path program 10 times [2022-11-16 11:38:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:26,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797447150] [2022-11-16 11:38:26,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:26,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:28,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:28,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797447150] [2022-11-16 11:38:28,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797447150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:28,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:28,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:28,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440886286] [2022-11-16 11:38:28,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:28,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:28,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:28,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:28,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:28,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 1229 transitions, 33873 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:28,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:28,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:28,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:33,443 INFO L130 PetriNetUnfolder]: 2430/6957 cut-off events. [2022-11-16 11:38:33,443 INFO L131 PetriNetUnfolder]: For 286258/286466 co-relation queries the response was YES. [2022-11-16 11:38:33,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56448 conditions, 6957 events. 2430/6957 cut-off events. For 286258/286466 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 66385 event pairs, 232 based on Foata normal form. 99/7045 useless extension candidates. Maximal degree in co-relation 56257. Up to 2512 conditions per place. [2022-11-16 11:38:33,636 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 815 selfloop transitions, 520 changer transitions 6/1446 dead transitions. [2022-11-16 11:38:33,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1446 transitions, 39981 flow [2022-11-16 11:38:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:38:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-16 11:38:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1058 transitions. [2022-11-16 11:38:33,641 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7337031900138696 [2022-11-16 11:38:33,641 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1058 transitions. [2022-11-16 11:38:33,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1058 transitions. [2022-11-16 11:38:33,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:33,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1058 transitions. [2022-11-16 11:38:33,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.57142857142857) internal successors, (1058), 14 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states 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 11:38:33,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:38:33,646 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 103.0) internal successors, (1545), 15 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 11:38:33,646 INFO L175 Difference]: Start difference. First operand has 557 places, 1229 transitions, 33873 flow. Second operand 14 states and 1058 transitions. [2022-11-16 11:38:33,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 1446 transitions, 39981 flow [2022-11-16 11:38:36,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 1446 transitions, 38840 flow, removed 37 selfloop flow, removed 9 redundant places. [2022-11-16 11:38:36,350 INFO L231 Difference]: Finished difference. Result has 566 places, 1274 transitions, 35890 flow [2022-11-16 11:38:36,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=32810, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=475, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=35890, PETRI_PLACES=566, PETRI_TRANSITIONS=1274} [2022-11-16 11:38:36,351 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 464 predicate places. [2022-11-16 11:38:36,351 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 1274 transitions, 35890 flow [2022-11-16 11:38:36,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:36,351 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:36,351 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:36,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:38:36,352 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:36,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:36,352 INFO L85 PathProgramCache]: Analyzing trace with hash 315050518, now seen corresponding path program 11 times [2022-11-16 11:38:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:36,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071502061] [2022-11-16 11:38:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:36,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:37,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:37,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071502061] [2022-11-16 11:38:37,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071502061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:37,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:37,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:37,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866364030] [2022-11-16 11:38:37,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:37,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:37,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:37,405 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:37,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1274 transitions, 35890 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:37,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:37,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:37,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:43,231 INFO L130 PetriNetUnfolder]: 2497/7159 cut-off events. [2022-11-16 11:38:43,231 INFO L131 PetriNetUnfolder]: For 300019/300222 co-relation queries the response was YES. [2022-11-16 11:38:43,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58831 conditions, 7159 events. 2497/7159 cut-off events. For 300019/300222 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 68856 event pairs, 252 based on Foata normal form. 96/7244 useless extension candidates. Maximal degree in co-relation 58638. Up to 2556 conditions per place. [2022-11-16 11:38:43,384 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 837 selfloop transitions, 535 changer transitions 12/1489 dead transitions. [2022-11-16 11:38:43,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 1489 transitions, 42047 flow [2022-11-16 11:38:43,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:38:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:38:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2022-11-16 11:38:43,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7460791635548917 [2022-11-16 11:38:43,387 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2022-11-16 11:38:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2022-11-16 11:38:43,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:43,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2022-11-16 11:38:43,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 11:38:43,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:38:43,389 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:38:43,390 INFO L175 Difference]: Start difference. First operand has 566 places, 1274 transitions, 35890 flow. Second operand 13 states and 999 transitions. [2022-11-16 11:38:43,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 1489 transitions, 42047 flow [2022-11-16 11:38:45,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 1489 transitions, 41389 flow, removed 44 selfloop flow, removed 5 redundant places. [2022-11-16 11:38:46,022 INFO L231 Difference]: Finished difference. Result has 578 places, 1307 transitions, 38195 flow [2022-11-16 11:38:46,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=35288, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=762, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=38195, PETRI_PLACES=578, PETRI_TRANSITIONS=1307} [2022-11-16 11:38:46,024 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 476 predicate places. [2022-11-16 11:38:46,024 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 1307 transitions, 38195 flow [2022-11-16 11:38:46,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:46,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:46,025 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:46,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:38:46,025 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:46,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2068122244, now seen corresponding path program 12 times [2022-11-16 11:38:46,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:46,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785250575] [2022-11-16 11:38:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:46,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:46,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:46,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785250575] [2022-11-16 11:38:46,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785250575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:46,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:46,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:46,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974915062] [2022-11-16 11:38:46,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:46,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:46,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:46,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:46,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:46,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:46,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 1307 transitions, 38195 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:46,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:46,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:46,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:38:52,136 INFO L130 PetriNetUnfolder]: 2532/7264 cut-off events. [2022-11-16 11:38:52,136 INFO L131 PetriNetUnfolder]: For 319420/319621 co-relation queries the response was YES. [2022-11-16 11:38:52,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60418 conditions, 7264 events. 2532/7264 cut-off events. For 319420/319621 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 69603 event pairs, 242 based on Foata normal form. 75/7329 useless extension candidates. Maximal degree in co-relation 60221. Up to 2839 conditions per place. [2022-11-16 11:38:52,296 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 959 selfloop transitions, 402 changer transitions 15/1481 dead transitions. [2022-11-16 11:38:52,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 1481 transitions, 43016 flow [2022-11-16 11:38:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:38:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:38:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 915 transitions. [2022-11-16 11:38:52,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7402912621359223 [2022-11-16 11:38:52,298 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 915 transitions. [2022-11-16 11:38:52,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 915 transitions. [2022-11-16 11:38:52,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:38:52,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 915 transitions. [2022-11-16 11:38:52,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.25) internal successors, (915), 12 states have internal predecessors, (915), 0 states have call successors, (0), 0 states 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 11:38:52,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:38:52,301 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 11:38:52,301 INFO L175 Difference]: Start difference. First operand has 578 places, 1307 transitions, 38195 flow. Second operand 12 states and 915 transitions. [2022-11-16 11:38:52,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 1481 transitions, 43016 flow [2022-11-16 11:38:55,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 1481 transitions, 42225 flow, removed 26 selfloop flow, removed 8 redundant places. [2022-11-16 11:38:55,241 INFO L231 Difference]: Finished difference. Result has 586 places, 1342 transitions, 39520 flow [2022-11-16 11:38:55,241 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=37448, PETRI_DIFFERENCE_MINUEND_PLACES=570, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=370, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=911, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=39520, PETRI_PLACES=586, PETRI_TRANSITIONS=1342} [2022-11-16 11:38:55,242 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 484 predicate places. [2022-11-16 11:38:55,242 INFO L495 AbstractCegarLoop]: Abstraction has has 586 places, 1342 transitions, 39520 flow [2022-11-16 11:38:55,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:55,242 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:38:55,243 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:38:55,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:38:55,243 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:38:55,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:38:55,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1598342586, now seen corresponding path program 13 times [2022-11-16 11:38:55,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:38:55,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205565701] [2022-11-16 11:38:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:38:55,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:38:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:38:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:38:56,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:38:56,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205565701] [2022-11-16 11:38:56,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205565701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:38:56,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:38:56,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:38:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738094115] [2022-11-16 11:38:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:38:56,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:38:56,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:38:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:38:56,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:38:56,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:38:56,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1342 transitions, 39520 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:38:56,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:38:56,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:38:56,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:02,768 INFO L130 PetriNetUnfolder]: 2638/7530 cut-off events. [2022-11-16 11:39:02,768 INFO L131 PetriNetUnfolder]: For 358361/358573 co-relation queries the response was YES. [2022-11-16 11:39:02,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63884 conditions, 7530 events. 2638/7530 cut-off events. For 358361/358573 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 72823 event pairs, 257 based on Foata normal form. 98/7619 useless extension candidates. Maximal degree in co-relation 63683. Up to 1952 conditions per place. [2022-11-16 11:39:02,883 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 877 selfloop transitions, 569 changer transitions 8/1559 dead transitions. [2022-11-16 11:39:02,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 1559 transitions, 45787 flow [2022-11-16 11:39:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:39:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:39:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 872 transitions. [2022-11-16 11:39:02,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7696381288614298 [2022-11-16 11:39:02,885 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 872 transitions. [2022-11-16 11:39:02,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 872 transitions. [2022-11-16 11:39:02,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:02,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 872 transitions. [2022-11-16 11:39:02,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.27272727272727) internal successors, (872), 11 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 11:39:02,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:02,888 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:02,888 INFO L175 Difference]: Start difference. First operand has 586 places, 1342 transitions, 39520 flow. Second operand 11 states and 872 transitions. [2022-11-16 11:39:02,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 1559 transitions, 45787 flow [2022-11-16 11:39:05,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 592 places, 1559 transitions, 45551 flow, removed 16 selfloop flow, removed 4 redundant places. [2022-11-16 11:39:05,901 INFO L231 Difference]: Finished difference. Result has 596 places, 1382 transitions, 42483 flow [2022-11-16 11:39:05,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=39318, PETRI_DIFFERENCE_MINUEND_PLACES=582, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=42483, PETRI_PLACES=596, PETRI_TRANSITIONS=1382} [2022-11-16 11:39:05,903 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 494 predicate places. [2022-11-16 11:39:05,903 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 1382 transitions, 42483 flow [2022-11-16 11:39:05,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:05,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:05,903 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:05,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:39:05,904 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:39:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:05,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1291103233, now seen corresponding path program 1 times [2022-11-16 11:39:05,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:05,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550435124] [2022-11-16 11:39:05,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:05,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:06,564 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:39:06,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:06,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550435124] [2022-11-16 11:39:06,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550435124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:06,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:06,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:39:06,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713313418] [2022-11-16 11:39:06,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:06,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:39:06,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:06,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:39:06,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:39:06,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 11:39:06,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1382 transitions, 42483 flow. Second operand has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 11:39:06,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:06,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 11:39:06,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:13,015 INFO L130 PetriNetUnfolder]: 3001/8117 cut-off events. [2022-11-16 11:39:13,015 INFO L131 PetriNetUnfolder]: For 419119/419264 co-relation queries the response was YES. [2022-11-16 11:39:13,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70921 conditions, 8117 events. 3001/8117 cut-off events. For 419119/419264 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 77030 event pairs, 621 based on Foata normal form. 137/8217 useless extension candidates. Maximal degree in co-relation 70715. Up to 3270 conditions per place. [2022-11-16 11:39:13,180 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 1164 selfloop transitions, 293 changer transitions 47/1604 dead transitions. [2022-11-16 11:39:13,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1604 transitions, 49930 flow [2022-11-16 11:39:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:39:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:39:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1114 transitions. [2022-11-16 11:39:13,182 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6759708737864077 [2022-11-16 11:39:13,182 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1114 transitions. [2022-11-16 11:39:13,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1114 transitions. [2022-11-16 11:39:13,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:13,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1114 transitions. [2022-11-16 11:39:13,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 69.625) internal successors, (1114), 16 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states 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 11:39:13,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 11:39:13,187 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 103.0) internal successors, (1751), 17 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 11:39:13,188 INFO L175 Difference]: Start difference. First operand has 596 places, 1382 transitions, 42483 flow. Second operand 16 states and 1114 transitions. [2022-11-16 11:39:13,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1604 transitions, 49930 flow [2022-11-16 11:39:17,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 1604 transitions, 49314 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:17,189 INFO L231 Difference]: Finished difference. Result has 615 places, 1428 transitions, 43560 flow [2022-11-16 11:39:17,190 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=41939, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=43560, PETRI_PLACES=615, PETRI_TRANSITIONS=1428} [2022-11-16 11:39:17,190 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 513 predicate places. [2022-11-16 11:39:17,190 INFO L495 AbstractCegarLoop]: Abstraction has has 615 places, 1428 transitions, 43560 flow [2022-11-16 11:39:17,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 11:39:17,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:17,191 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:17,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:39:17,191 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:39:17,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:17,192 INFO L85 PathProgramCache]: Analyzing trace with hash -342241536, now seen corresponding path program 14 times [2022-11-16 11:39:17,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:17,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993473258] [2022-11-16 11:39:17,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:17,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:18,450 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:39:18,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:18,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993473258] [2022-11-16 11:39:18,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993473258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:18,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:18,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:39:18,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592594413] [2022-11-16 11:39:18,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:18,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:18,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:18,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:18,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:39:18,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 1428 transitions, 43560 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:18,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:18,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:39:18,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:25,473 INFO L130 PetriNetUnfolder]: 2740/7819 cut-off events. [2022-11-16 11:39:25,473 INFO L131 PetriNetUnfolder]: For 412909/413121 co-relation queries the response was YES. [2022-11-16 11:39:25,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70941 conditions, 7819 events. 2740/7819 cut-off events. For 412909/413121 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 76163 event pairs, 272 based on Foata normal form. 95/7908 useless extension candidates. Maximal degree in co-relation 70727. Up to 2003 conditions per place. [2022-11-16 11:39:25,635 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 928 selfloop transitions, 598 changer transitions 9/1641 dead transitions. [2022-11-16 11:39:25,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1641 transitions, 50378 flow [2022-11-16 11:39:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:39:25,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:39:25,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 872 transitions. [2022-11-16 11:39:25,637 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7696381288614298 [2022-11-16 11:39:25,637 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 872 transitions. [2022-11-16 11:39:25,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 872 transitions. [2022-11-16 11:39:25,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:25,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 872 transitions. [2022-11-16 11:39:25,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.27272727272727) internal successors, (872), 11 states have internal predecessors, (872), 0 states have call successors, (0), 0 states 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 11:39:25,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:25,640 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:25,640 INFO L175 Difference]: Start difference. First operand has 615 places, 1428 transitions, 43560 flow. Second operand 11 states and 872 transitions. [2022-11-16 11:39:25,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1641 transitions, 50378 flow [2022-11-16 11:39:29,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 1641 transitions, 50201 flow, removed 62 selfloop flow, removed 4 redundant places. [2022-11-16 11:39:29,553 INFO L231 Difference]: Finished difference. Result has 621 places, 1474 transitions, 46908 flow [2022-11-16 11:39:29,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=43391, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=850, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=46908, PETRI_PLACES=621, PETRI_TRANSITIONS=1474} [2022-11-16 11:39:29,554 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 519 predicate places. [2022-11-16 11:39:29,554 INFO L495 AbstractCegarLoop]: Abstraction has has 621 places, 1474 transitions, 46908 flow [2022-11-16 11:39:29,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:29,554 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:29,554 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:29,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:39:29,555 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:39:29,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:29,555 INFO L85 PathProgramCache]: Analyzing trace with hash 564295712, now seen corresponding path program 15 times [2022-11-16 11:39:29,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:29,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544678148] [2022-11-16 11:39:29,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:29,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:30,765 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:39:30,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544678148] [2022-11-16 11:39:30,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544678148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:30,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:30,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:39:30,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557291566] [2022-11-16 11:39:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:30,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:30,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:30,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:30,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:30,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:39:30,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1474 transitions, 46908 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:30,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:30,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:39:30,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:37,739 INFO L130 PetriNetUnfolder]: 2841/8099 cut-off events. [2022-11-16 11:39:37,740 INFO L131 PetriNetUnfolder]: For 465731/465943 co-relation queries the response was YES. [2022-11-16 11:39:37,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75776 conditions, 8099 events. 2841/8099 cut-off events. For 465731/465943 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 79563 event pairs, 296 based on Foata normal form. 95/8187 useless extension candidates. Maximal degree in co-relation 75559. Up to 2043 conditions per place. [2022-11-16 11:39:37,896 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 963 selfloop transitions, 611 changer transitions 12/1692 dead transitions. [2022-11-16 11:39:37,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 1692 transitions, 53991 flow [2022-11-16 11:39:37,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:39:37,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:39:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 874 transitions. [2022-11-16 11:39:37,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7714033539276258 [2022-11-16 11:39:37,898 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 874 transitions. [2022-11-16 11:39:37,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 874 transitions. [2022-11-16 11:39:37,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:37,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 874 transitions. [2022-11-16 11:39:37,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.45454545454545) internal successors, (874), 11 states have internal predecessors, (874), 0 states have call successors, (0), 0 states 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 11:39:37,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:37,900 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states 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 11:39:37,900 INFO L175 Difference]: Start difference. First operand has 621 places, 1474 transitions, 46908 flow. Second operand 11 states and 874 transitions. [2022-11-16 11:39:37,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 1692 transitions, 53991 flow [2022-11-16 11:39:42,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 1692 transitions, 53380 flow, removed 21 selfloop flow, removed 5 redundant places. [2022-11-16 11:39:42,050 INFO L231 Difference]: Finished difference. Result has 632 places, 1518 transitions, 49923 flow [2022-11-16 11:39:42,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=46331, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=566, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=883, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=49923, PETRI_PLACES=632, PETRI_TRANSITIONS=1518} [2022-11-16 11:39:42,051 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 530 predicate places. [2022-11-16 11:39:42,051 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 1518 transitions, 49923 flow [2022-11-16 11:39:42,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:42,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:42,052 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:42,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:39:42,052 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:39:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1996328302, now seen corresponding path program 3 times [2022-11-16 11:39:42,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:42,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813771932] [2022-11-16 11:39:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:39:43,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813771932] [2022-11-16 11:39:43,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813771932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:43,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:43,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:39:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088529294] [2022-11-16 11:39:43,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:43,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:39:43,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:43,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:39:43,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:39:43,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:39:43,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 1518 transitions, 49923 flow. Second operand has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 11:39:43,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:43,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:39:43,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:39:51,997 INFO L130 PetriNetUnfolder]: 2885/8189 cut-off events. [2022-11-16 11:39:51,998 INFO L131 PetriNetUnfolder]: For 493322/493577 co-relation queries the response was YES. [2022-11-16 11:39:52,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78260 conditions, 8189 events. 2885/8189 cut-off events. For 493322/493577 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 80674 event pairs, 333 based on Foata normal form. 116/8296 useless extension candidates. Maximal degree in co-relation 78037. Up to 3836 conditions per place. [2022-11-16 11:39:52,145 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 1315 selfloop transitions, 448 changer transitions 19/1888 dead transitions. [2022-11-16 11:39:52,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 1888 transitions, 62304 flow [2022-11-16 11:39:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:39:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:39:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 966 transitions. [2022-11-16 11:39:52,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7214339058999253 [2022-11-16 11:39:52,148 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 966 transitions. [2022-11-16 11:39:52,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 966 transitions. [2022-11-16 11:39:52,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:39:52,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 966 transitions. [2022-11-16 11:39:52,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.3076923076923) internal successors, (966), 13 states have internal predecessors, (966), 0 states have call successors, (0), 0 states 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 11:39:52,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:39:52,151 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:39:52,151 INFO L175 Difference]: Start difference. First operand has 632 places, 1518 transitions, 49923 flow. Second operand 13 states and 966 transitions. [2022-11-16 11:39:52,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 1888 transitions, 62304 flow [2022-11-16 11:39:56,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 1888 transitions, 61553 flow, removed 59 selfloop flow, removed 4 redundant places. [2022-11-16 11:39:56,944 INFO L231 Difference]: Finished difference. Result has 647 places, 1590 transitions, 53338 flow [2022-11-16 11:39:56,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=49316, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=376, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1097, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=53338, PETRI_PLACES=647, PETRI_TRANSITIONS=1590} [2022-11-16 11:39:56,945 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 545 predicate places. [2022-11-16 11:39:56,946 INFO L495 AbstractCegarLoop]: Abstraction has has 647 places, 1590 transitions, 53338 flow [2022-11-16 11:39:56,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states 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 11:39:56,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:39:56,946 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:39:56,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:39:56,946 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:39:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:39:56,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1715081460, now seen corresponding path program 4 times [2022-11-16 11:39:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:39:56,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164583906] [2022-11-16 11:39:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:39:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:39:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:39:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:39:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:39:57,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164583906] [2022-11-16 11:39:57,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164583906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:39:57,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:39:57,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:39:57,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138711297] [2022-11-16 11:39:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:39:57,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:39:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:39:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:39:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:39:57,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:39:57,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 1590 transitions, 53338 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:39:57,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:39:57,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:39:57,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:06,638 INFO L130 PetriNetUnfolder]: 2920/8359 cut-off events. [2022-11-16 11:40:06,638 INFO L131 PetriNetUnfolder]: For 518606/518827 co-relation queries the response was YES. [2022-11-16 11:40:06,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80557 conditions, 8359 events. 2920/8359 cut-off events. For 518606/518827 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 82451 event pairs, 515 based on Foata normal form. 78/8429 useless extension candidates. Maximal degree in co-relation 80327. Up to 4160 conditions per place. [2022-11-16 11:40:06,961 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 1378 selfloop transitions, 271 changer transitions 15/1770 dead transitions. [2022-11-16 11:40:06,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 1770 transitions, 60594 flow [2022-11-16 11:40:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:40:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:40:06,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 785 transitions. [2022-11-16 11:40:06,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7621359223300971 [2022-11-16 11:40:06,963 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 785 transitions. [2022-11-16 11:40:06,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 785 transitions. [2022-11-16 11:40:06,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:06,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 785 transitions. [2022-11-16 11:40:06,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.5) internal successors, (785), 10 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 11:40:06,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:06,965 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:06,966 INFO L175 Difference]: Start difference. First operand has 647 places, 1590 transitions, 53338 flow. Second operand 10 states and 785 transitions. [2022-11-16 11:40:06,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 1770 transitions, 60594 flow [2022-11-16 11:40:11,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 1770 transitions, 60457 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-11-16 11:40:11,871 INFO L231 Difference]: Finished difference. Result has 657 places, 1626 transitions, 55469 flow [2022-11-16 11:40:11,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=53215, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=55469, PETRI_PLACES=657, PETRI_TRANSITIONS=1626} [2022-11-16 11:40:11,873 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 555 predicate places. [2022-11-16 11:40:11,873 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 1626 transitions, 55469 flow [2022-11-16 11:40:11,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:40:11,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:11,874 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:11,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:40:11,875 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:40:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:11,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1609272518, now seen corresponding path program 18 times [2022-11-16 11:40:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:11,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057995559] [2022-11-16 11:40:11,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:11,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:40:12,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:12,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057995559] [2022-11-16 11:40:12,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057995559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:12,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:12,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:40:12,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583042033] [2022-11-16 11:40:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:12,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:40:12,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:40:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:40:12,644 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:40:12,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 1626 transitions, 55469 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:12,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:12,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:40:12,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:22,145 INFO L130 PetriNetUnfolder]: 3582/9665 cut-off events. [2022-11-16 11:40:22,145 INFO L131 PetriNetUnfolder]: For 579330/579540 co-relation queries the response was YES. [2022-11-16 11:40:22,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91730 conditions, 9665 events. 3582/9665 cut-off events. For 579330/579540 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 95120 event pairs, 1129 based on Foata normal form. 69/9721 useless extension candidates. Maximal degree in co-relation 91496. Up to 6031 conditions per place. [2022-11-16 11:40:22,336 INFO L137 encePairwiseOnDemand]: 82/103 looper letters, 818 selfloop transitions, 793 changer transitions 24/1727 dead transitions. [2022-11-16 11:40:22,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 666 places, 1727 transitions, 60215 flow [2022-11-16 11:40:22,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:40:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:40:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 747 transitions. [2022-11-16 11:40:22,338 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7252427184466019 [2022-11-16 11:40:22,338 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 747 transitions. [2022-11-16 11:40:22,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 747 transitions. [2022-11-16 11:40:22,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:22,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 747 transitions. [2022-11-16 11:40:22,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.7) internal successors, (747), 10 states have internal predecessors, (747), 0 states have call successors, (0), 0 states 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 11:40:22,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:22,341 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:22,342 INFO L175 Difference]: Start difference. First operand has 657 places, 1626 transitions, 55469 flow. Second operand 10 states and 747 transitions. [2022-11-16 11:40:22,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 666 places, 1727 transitions, 60215 flow [2022-11-16 11:40:27,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 664 places, 1727 transitions, 60013 flow, removed 53 selfloop flow, removed 2 redundant places. [2022-11-16 11:40:27,973 INFO L231 Difference]: Finished difference. Result has 669 places, 1639 transitions, 57855 flow [2022-11-16 11:40:27,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=55273, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=780, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=838, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=57855, PETRI_PLACES=669, PETRI_TRANSITIONS=1639} [2022-11-16 11:40:27,974 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 567 predicate places. [2022-11-16 11:40:27,974 INFO L495 AbstractCegarLoop]: Abstraction has has 669 places, 1639 transitions, 57855 flow [2022-11-16 11:40:27,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:27,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:27,974 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:27,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:40:27,974 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:40:27,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash 275258048, now seen corresponding path program 19 times [2022-11-16 11:40:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:27,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144761626] [2022-11-16 11:40:27,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:27,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:40:28,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:28,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144761626] [2022-11-16 11:40:28,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144761626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:28,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:28,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:40:28,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748735281] [2022-11-16 11:40:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:28,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:40:28,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:28,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:40:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:40:28,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 11:40:28,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 1639 transitions, 57855 flow. Second operand has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:28,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:28,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 11:40:28,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:37,974 INFO L130 PetriNetUnfolder]: 3582/9668 cut-off events. [2022-11-16 11:40:37,975 INFO L131 PetriNetUnfolder]: For 629369/629575 co-relation queries the response was YES. [2022-11-16 11:40:38,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93714 conditions, 9668 events. 3582/9668 cut-off events. For 629369/629575 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 95086 event pairs, 1151 based on Foata normal form. 64/9720 useless extension candidates. Maximal degree in co-relation 93476. Up to 6033 conditions per place. [2022-11-16 11:40:38,153 INFO L137 encePairwiseOnDemand]: 85/103 looper letters, 850 selfloop transitions, 764 changer transitions 17/1723 dead transitions. [2022-11-16 11:40:38,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 678 places, 1723 transitions, 62472 flow [2022-11-16 11:40:38,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:40:38,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:40:38,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 724 transitions. [2022-11-16 11:40:38,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7029126213592233 [2022-11-16 11:40:38,155 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 724 transitions. [2022-11-16 11:40:38,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 724 transitions. [2022-11-16 11:40:38,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:38,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 724 transitions. [2022-11-16 11:40:38,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.4) internal successors, (724), 10 states have internal predecessors, (724), 0 states have call successors, (0), 0 states 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 11:40:38,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:38,158 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:38,159 INFO L175 Difference]: Start difference. First operand has 669 places, 1639 transitions, 57855 flow. Second operand 10 states and 724 transitions. [2022-11-16 11:40:38,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 678 places, 1723 transitions, 62472 flow [2022-11-16 11:40:44,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 675 places, 1723 transitions, 61645 flow, removed 27 selfloop flow, removed 3 redundant places. [2022-11-16 11:40:44,606 INFO L231 Difference]: Finished difference. Result has 679 places, 1650 transitions, 59008 flow [2022-11-16 11:40:44,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=57056, PETRI_DIFFERENCE_MINUEND_PLACES=666, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=753, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=881, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=59008, PETRI_PLACES=679, PETRI_TRANSITIONS=1650} [2022-11-16 11:40:44,607 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 577 predicate places. [2022-11-16 11:40:44,608 INFO L495 AbstractCegarLoop]: Abstraction has has 679 places, 1650 transitions, 59008 flow [2022-11-16 11:40:44,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.5) internal successors, (605), 10 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:40:44,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:40:44,608 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:40:44,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:40:44,609 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:40:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:40:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1851663944, now seen corresponding path program 5 times [2022-11-16 11:40:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:40:44,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432220228] [2022-11-16 11:40:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:40:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:40:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:40:46,042 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 11:40:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:40:46,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432220228] [2022-11-16 11:40:46,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432220228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:40:46,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:40:46,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:40:46,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991943896] [2022-11-16 11:40:46,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:40:46,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:40:46,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:40:46,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:40:46,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:40:46,045 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 11:40:46,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 679 places, 1650 transitions, 59008 flow. Second operand has 10 states, 10 states have (on average 62.4) internal successors, (624), 10 states have internal predecessors, (624), 0 states have call successors, (0), 0 states 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 11:40:46,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:40:46,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 11:40:46,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:40:54,973 INFO L130 PetriNetUnfolder]: 3079/8749 cut-off events. [2022-11-16 11:40:54,973 INFO L131 PetriNetUnfolder]: For 588417/588681 co-relation queries the response was YES. [2022-11-16 11:40:55,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88871 conditions, 8749 events. 3079/8749 cut-off events. For 588417/588681 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 87261 event pairs, 357 based on Foata normal form. 135/8875 useless extension candidates. Maximal degree in co-relation 88629. Up to 3872 conditions per place. [2022-11-16 11:40:55,168 INFO L137 encePairwiseOnDemand]: 87/103 looper letters, 1395 selfloop transitions, 441 changer transitions 20/1963 dead transitions. [2022-11-16 11:40:55,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 1963 transitions, 70019 flow [2022-11-16 11:40:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:40:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:40:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 773 transitions. [2022-11-16 11:40:55,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7504854368932039 [2022-11-16 11:40:55,170 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 773 transitions. [2022-11-16 11:40:55,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 773 transitions. [2022-11-16 11:40:55,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:40:55,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 773 transitions. [2022-11-16 11:40:55,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 11:40:55,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:55,172 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 103.0) internal successors, (1133), 11 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states 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 11:40:55,172 INFO L175 Difference]: Start difference. First operand has 679 places, 1650 transitions, 59008 flow. Second operand 10 states and 773 transitions. [2022-11-16 11:40:55,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 1963 transitions, 70019 flow