./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- 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-5e519f3 [2022-11-02 21:01:28,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:01:28,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:01:28,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:01:28,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:01:28,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:01:28,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:01:28,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:01:28,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:01:28,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:01:28,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:01:28,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:01:28,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:01:28,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:01:28,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:01:28,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:01:28,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:01:28,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:01:28,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:01:28,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:01:28,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:01:28,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:01:28,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:01:28,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:01:28,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:01:28,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:01:28,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:01:28,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:01:28,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:01:28,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:01:28,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:01:28,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:01:28,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:01:28,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:01:28,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:01:28,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:01:28,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:01:28,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:01:28,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:01:28,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:01:28,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:01:28,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:01:28,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:01:28,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:01:28,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:01:28,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:01:28,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:01:28,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:01:28,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:01:28,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:01:28,871 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:01:28,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:01:28,872 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:01:28,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:01:28,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:01:28,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:01:28,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:01:28,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:01:28,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:01:28,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:01:28,874 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:01:28,874 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:01:28,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:01:28,875 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:01:28,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:01:28,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:01:28,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:01:28,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:01:28,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:01:28,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:01:28,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:01:28,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:01:28,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:01:28,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:01:28,877 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:01:28,877 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:01:28,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:01:28,878 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_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-02 21:01:29,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:01:29,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:01:29,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:01:29,218 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:01:29,218 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:01:29,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-02 21:01:29,279 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/data/d29bd7457/1c98ec623e1f4c50a87ba5ade9bd1c13/FLAG206146e6c [2022-11-02 21:01:29,926 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:01:29,927 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-02 21:01:29,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/data/d29bd7457/1c98ec623e1f4c50a87ba5ade9bd1c13/FLAG206146e6c [2022-11-02 21:01:30,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/data/d29bd7457/1c98ec623e1f4c50a87ba5ade9bd1c13 [2022-11-02 21:01:30,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:01:30,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:01:30,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:30,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:01:30,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:01:30,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bb22a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30, skipping insertion in model container [2022-11-02 21:01:30,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:01:30,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:01:30,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:30,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:01:30,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:01:30,784 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:01:30,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30 WrapperNode [2022-11-02 21:01:30,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:01:30,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:30,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:01:30,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:01:30,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,868 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-02 21:01:30,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:01:30,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:01:30,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:01:30,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:01:30,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:01:30,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:01:30,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:01:30,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:01:30,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (1/1) ... [2022-11-02 21:01:30,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:01:30,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:30,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:01:31,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ca70099-4486-4a23-9085-b79e01a042a6/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:01:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:01:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:01:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:01:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:01:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:01:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:01:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:01:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:01:31,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:01:31,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:01:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:01:31,044 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:01:31,211 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:01:31,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:01:31,476 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:01:31,494 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:01:31,494 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:01:31,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:31 BoogieIcfgContainer [2022-11-02 21:01:31,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:01:31,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:01:31,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:01:31,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:01:31,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:01:30" (1/3) ... [2022-11-02 21:01:31,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bcdaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:01:31, skipping insertion in model container [2022-11-02 21:01:31,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:01:30" (2/3) ... [2022-11-02 21:01:31,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45bcdaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:01:31, skipping insertion in model container [2022-11-02 21:01:31,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:01:31" (3/3) ... [2022-11-02 21:01:31,512 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-02 21:01:31,521 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:01:31,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:01:31,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-02 21:01:31,531 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:01:31,646 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 21:01:31,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2022-11-02 21:01:31,804 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-02 21:01:31,804 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:01:31,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 0/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-02 21:01:31,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2022-11-02 21:01:31,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2022-11-02 21:01:31,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:01:31,843 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;@4f287edd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:01:31,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-02 21:01:31,876 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-11-02 21:01:31,876 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:01:31,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:31,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:31,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:31,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash -161846166, now seen corresponding path program 1 times [2022-11-02 21:01:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:31,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957603594] [2022-11-02 21:01:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:33,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:33,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:33,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957603594] [2022-11-02 21:01:33,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957603594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:33,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:33,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:01:33,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133682169] [2022-11-02 21:01:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:33,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:01:33,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:01:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:01:33,142 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-02 21:01:33,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 197 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) [2022-11-02 21:01:33,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:33,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-02 21:01:33,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:33,852 INFO L130 PetriNetUnfolder]: 347/961 cut-off events. [2022-11-02 21:01:33,853 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:01:33,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 961 events. 347/961 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5374 event pairs, 170 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1662. Up to 526 conditions per place. [2022-11-02 21:01:33,865 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 91 selfloop transitions, 22 changer transitions 0/175 dead transitions. [2022-11-02 21:01:33,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 175 transitions, 579 flow [2022-11-02 21:01:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:01:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:01:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2022-11-02 21:01:33,885 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.839622641509434 [2022-11-02 21:01:33,886 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2022-11-02 21:01:33,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2022-11-02 21:01:33,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:33,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2022-11-02 21:01:33,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:33,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:33,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:33,911 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 197 flow. Second operand 6 states and 534 transitions. [2022-11-02 21:01:33,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 175 transitions, 579 flow [2022-11-02 21:01:33,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:01:33,922 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 346 flow [2022-11-02 21:01:33,925 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2022-11-02 21:01:33,929 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2022-11-02 21:01:33,930 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 346 flow [2022-11-02 21:01:33,930 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) [2022-11-02 21:01:33,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:33,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:33,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:01:33,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:33,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1010088859, now seen corresponding path program 1 times [2022-11-02 21:01:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:33,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491338600] [2022-11-02 21:01:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:33,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:34,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:34,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:34,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491338600] [2022-11-02 21:01:34,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491338600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:34,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:34,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:01:34,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768053698] [2022-11-02 21:01:34,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:34,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:01:34,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:34,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:01:34,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:01:34,381 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2022-11-02 21:01:34,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 346 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) [2022-11-02 21:01:34,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:34,383 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2022-11-02 21:01:34,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:34,964 INFO L130 PetriNetUnfolder]: 332/958 cut-off events. [2022-11-02 21:01:34,964 INFO L131 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2022-11-02 21:01:34,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 958 events. 332/958 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5418 event pairs, 155 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2052. Up to 591 conditions per place. [2022-11-02 21:01:34,980 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 80 selfloop transitions, 26 changer transitions 0/168 dead transitions. [2022-11-02 21:01:34,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 168 transitions, 748 flow [2022-11-02 21:01:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:01:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:01:34,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2022-11-02 21:01:34,985 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2022-11-02 21:01:34,985 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2022-11-02 21:01:34,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2022-11-02 21:01:34,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:34,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2022-11-02 21:01:34,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:34,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:34,993 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:34,993 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 346 flow. Second operand 6 states and 506 transitions. [2022-11-02 21:01:34,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 168 transitions, 748 flow [2022-11-02 21:01:35,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:01:35,005 INFO L231 Difference]: Finished difference. Result has 120 places, 139 transitions, 530 flow [2022-11-02 21:01:35,006 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=120, PETRI_TRANSITIONS=139} [2022-11-02 21:01:35,007 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 19 predicate places. [2022-11-02 21:01:35,007 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 139 transitions, 530 flow [2022-11-02 21:01:35,008 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) [2022-11-02 21:01:35,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:35,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:35,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:01:35,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1644406941, now seen corresponding path program 1 times [2022-11-02 21:01:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:35,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552852731] [2022-11-02 21:01:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:35,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:35,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552852731] [2022-11-02 21:01:35,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552852731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:35,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:35,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:01:35,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686037162] [2022-11-02 21:01:35,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:35,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:01:35,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:35,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:01:35,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:01:35,514 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-02 21:01:35,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 139 transitions, 530 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) [2022-11-02 21:01:35,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:35,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-02 21:01:35,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:36,160 INFO L130 PetriNetUnfolder]: 502/1324 cut-off events. [2022-11-02 21:01:36,160 INFO L131 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2022-11-02 21:01:36,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1324 events. 502/1324 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 7791 event pairs, 196 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 3245. Up to 895 conditions per place. [2022-11-02 21:01:36,174 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 94 selfloop transitions, 69 changer transitions 4/227 dead transitions. [2022-11-02 21:01:36,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 227 transitions, 1200 flow [2022-11-02 21:01:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:01:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:01:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-11-02 21:01:36,177 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2022-11-02 21:01:36,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-11-02 21:01:36,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-11-02 21:01:36,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:36,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-11-02 21:01:36,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:36,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:36,186 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:36,186 INFO L175 Difference]: Start difference. First operand has 120 places, 139 transitions, 530 flow. Second operand 6 states and 523 transitions. [2022-11-02 21:01:36,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 227 transitions, 1200 flow [2022-11-02 21:01:36,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 227 transitions, 1200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:01:36,206 INFO L231 Difference]: Finished difference. Result has 130 places, 202 transitions, 1116 flow [2022-11-02 21:01:36,206 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=130, PETRI_TRANSITIONS=202} [2022-11-02 21:01:36,209 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 29 predicate places. [2022-11-02 21:01:36,209 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 202 transitions, 1116 flow [2022-11-02 21:01:36,210 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) [2022-11-02 21:01:36,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:36,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:36,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:01:36,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:36,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:36,212 INFO L85 PathProgramCache]: Analyzing trace with hash -82871010, now seen corresponding path program 1 times [2022-11-02 21:01:36,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:36,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201513555] [2022-11-02 21:01:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:36,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:36,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:36,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201513555] [2022-11-02 21:01:36,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201513555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:36,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:36,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:01:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427703303] [2022-11-02 21:01:36,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:36,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:01:36,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:36,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:01:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:01:36,605 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2022-11-02 21:01:36,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 202 transitions, 1116 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) [2022-11-02 21:01:36,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:36,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2022-11-02 21:01:36,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:37,316 INFO L130 PetriNetUnfolder]: 545/1421 cut-off events. [2022-11-02 21:01:37,316 INFO L131 PetriNetUnfolder]: For 1828/1839 co-relation queries the response was YES. [2022-11-02 21:01:37,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1421 events. 545/1421 cut-off events. For 1828/1839 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8596 event pairs, 155 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 4490. Up to 995 conditions per place. [2022-11-02 21:01:37,334 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 145 selfloop transitions, 67 changer transitions 0/273 dead transitions. [2022-11-02 21:01:37,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 1958 flow [2022-11-02 21:01:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:01:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:01:37,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2022-11-02 21:01:37,338 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7845911949685535 [2022-11-02 21:01:37,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2022-11-02 21:01:37,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2022-11-02 21:01:37,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:37,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2022-11-02 21:01:37,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:37,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:37,348 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:37,353 INFO L175 Difference]: Start difference. First operand has 130 places, 202 transitions, 1116 flow. Second operand 6 states and 499 transitions. [2022-11-02 21:01:37,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 1958 flow [2022-11-02 21:01:37,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 273 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-02 21:01:37,388 INFO L231 Difference]: Finished difference. Result has 140 places, 255 transitions, 1704 flow [2022-11-02 21:01:37,389 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2022-11-02 21:01:37,391 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2022-11-02 21:01:37,392 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1704 flow [2022-11-02 21:01:37,392 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) [2022-11-02 21:01:37,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:37,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:37,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:01:37,396 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:37,396 INFO L85 PathProgramCache]: Analyzing trace with hash -828484541, now seen corresponding path program 1 times [2022-11-02 21:01:37,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:37,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821620294] [2022-11-02 21:01:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:37,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:38,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:38,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821620294] [2022-11-02 21:01:38,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821620294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:38,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:38,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:38,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616504605] [2022-11-02 21:01:38,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:38,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:38,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:38,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:38,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:38,227 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:38,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1704 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:38,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:38,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:38,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:40,416 INFO L130 PetriNetUnfolder]: 1216/3141 cut-off events. [2022-11-02 21:01:40,417 INFO L131 PetriNetUnfolder]: For 6121/6127 co-relation queries the response was YES. [2022-11-02 21:01:40,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 3141 events. 1216/3141 cut-off events. For 6121/6127 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22359 event pairs, 152 based on Foata normal form. 11/3084 useless extension candidates. Maximal degree in co-relation 11079. Up to 1123 conditions per place. [2022-11-02 21:01:40,462 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 455 selfloop transitions, 70 changer transitions 2/581 dead transitions. [2022-11-02 21:01:40,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 581 transitions, 5158 flow [2022-11-02 21:01:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:01:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:01:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2022-11-02 21:01:40,466 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6949685534591195 [2022-11-02 21:01:40,467 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2022-11-02 21:01:40,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2022-11-02 21:01:40,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:40,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2022-11-02 21:01:40,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:40,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:40,477 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:40,477 INFO L175 Difference]: Start difference. First operand has 140 places, 255 transitions, 1704 flow. Second operand 15 states and 1105 transitions. [2022-11-02 21:01:40,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 581 transitions, 5158 flow [2022-11-02 21:01:40,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 581 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2022-11-02 21:01:40,558 INFO L231 Difference]: Finished difference. Result has 162 places, 312 transitions, 2484 flow [2022-11-02 21:01:40,559 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2484, PETRI_PLACES=162, PETRI_TRANSITIONS=312} [2022-11-02 21:01:40,562 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 61 predicate places. [2022-11-02 21:01:40,562 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 312 transitions, 2484 flow [2022-11-02 21:01:40,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:40,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:40,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:40,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:01:40,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:40,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:40,567 INFO L85 PathProgramCache]: Analyzing trace with hash 775345589, now seen corresponding path program 2 times [2022-11-02 21:01:40,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:40,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971204613] [2022-11-02 21:01:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:40,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:41,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:41,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971204613] [2022-11-02 21:01:41,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971204613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:41,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:41,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:41,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121990924] [2022-11-02 21:01:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:41,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:41,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:41,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:41,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:41,532 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:41,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 312 transitions, 2484 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:41,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:41,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:41,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:43,394 INFO L130 PetriNetUnfolder]: 1266/3256 cut-off events. [2022-11-02 21:01:43,394 INFO L131 PetriNetUnfolder]: For 8605/8623 co-relation queries the response was YES. [2022-11-02 21:01:43,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3256 events. 1266/3256 cut-off events. For 8605/8623 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23502 event pairs, 187 based on Foata normal form. 5/3190 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2022-11-02 21:01:43,444 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 282 selfloop transitions, 95 changer transitions 0/431 dead transitions. [2022-11-02 21:01:43,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 431 transitions, 4124 flow [2022-11-02 21:01:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:01:43,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 21:01:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 886 transitions. [2022-11-02 21:01:43,448 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2022-11-02 21:01:43,448 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 886 transitions. [2022-11-02 21:01:43,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 886 transitions. [2022-11-02 21:01:43,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:43,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 886 transitions. [2022-11-02 21:01:43,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:43,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:43,457 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:43,457 INFO L175 Difference]: Start difference. First operand has 162 places, 312 transitions, 2484 flow. Second operand 12 states and 886 transitions. [2022-11-02 21:01:43,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 431 transitions, 4124 flow [2022-11-02 21:01:43,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 431 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-02 21:01:43,605 INFO L231 Difference]: Finished difference. Result has 175 places, 336 transitions, 3175 flow [2022-11-02 21:01:43,606 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3175, PETRI_PLACES=175, PETRI_TRANSITIONS=336} [2022-11-02 21:01:43,607 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 74 predicate places. [2022-11-02 21:01:43,607 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 336 transitions, 3175 flow [2022-11-02 21:01:43,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:43,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:43,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:43,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:01:43,609 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:43,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:43,610 INFO L85 PathProgramCache]: Analyzing trace with hash -330867265, now seen corresponding path program 1 times [2022-11-02 21:01:43,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:43,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259581604] [2022-11-02 21:01:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:43,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:44,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:44,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259581604] [2022-11-02 21:01:44,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259581604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:44,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:44,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:44,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469120229] [2022-11-02 21:01:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:44,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:44,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:44,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:44,373 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:44,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 336 transitions, 3175 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:44,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:44,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:44,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:47,672 INFO L130 PetriNetUnfolder]: 1954/5075 cut-off events. [2022-11-02 21:01:47,673 INFO L131 PetriNetUnfolder]: For 17560/17577 co-relation queries the response was YES. [2022-11-02 21:01:47,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 5075 events. 1954/5075 cut-off events. For 17560/17577 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 40791 event pairs, 222 based on Foata normal form. 13/4983 useless extension candidates. Maximal degree in co-relation 19734. Up to 1264 conditions per place. [2022-11-02 21:01:47,762 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 695 selfloop transitions, 107 changer transitions 7/863 dead transitions. [2022-11-02 21:01:47,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 863 transitions, 9124 flow [2022-11-02 21:01:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:01:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:01:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1138 transitions. [2022-11-02 21:01:47,768 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7668463611859838 [2022-11-02 21:01:47,768 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1138 transitions. [2022-11-02 21:01:47,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1138 transitions. [2022-11-02 21:01:47,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:47,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1138 transitions. [2022-11-02 21:01:47,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.28571428571429) internal successors, (1138), 14 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:47,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:47,778 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:47,778 INFO L175 Difference]: Start difference. First operand has 175 places, 336 transitions, 3175 flow. Second operand 14 states and 1138 transitions. [2022-11-02 21:01:47,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 863 transitions, 9124 flow [2022-11-02 21:01:47,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 863 transitions, 8953 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-02 21:01:47,931 INFO L231 Difference]: Finished difference. Result has 191 places, 428 transitions, 4700 flow [2022-11-02 21:01:47,932 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4700, PETRI_PLACES=191, PETRI_TRANSITIONS=428} [2022-11-02 21:01:47,933 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 90 predicate places. [2022-11-02 21:01:47,933 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 428 transitions, 4700 flow [2022-11-02 21:01:47,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:47,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:47,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:47,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:01:47,935 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:47,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1562676889, now seen corresponding path program 3 times [2022-11-02 21:01:47,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:47,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982375533] [2022-11-02 21:01:47,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:48,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:48,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982375533] [2022-11-02 21:01:48,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982375533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:48,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:48,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:48,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258169926] [2022-11-02 21:01:48,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:48,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:48,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:48,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:48,826 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:48,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 428 transitions, 4700 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:48,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:48,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:48,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:51,977 INFO L130 PetriNetUnfolder]: 2044/5251 cut-off events. [2022-11-02 21:01:51,978 INFO L131 PetriNetUnfolder]: For 23982/24012 co-relation queries the response was YES. [2022-11-02 21:01:52,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 5251 events. 2044/5251 cut-off events. For 23982/24012 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 42562 event pairs, 321 based on Foata normal form. 13/5150 useless extension candidates. Maximal degree in co-relation 22037. Up to 3165 conditions per place. [2022-11-02 21:01:52,075 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 413 selfloop transitions, 146 changer transitions 0/613 dead transitions. [2022-11-02 21:01:52,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 613 transitions, 7639 flow [2022-11-02 21:01:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:01:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:01:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1023 transitions. [2022-11-02 21:01:52,081 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6893530997304582 [2022-11-02 21:01:52,081 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1023 transitions. [2022-11-02 21:01:52,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1023 transitions. [2022-11-02 21:01:52,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:52,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1023 transitions. [2022-11-02 21:01:52,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.07142857142857) internal successors, (1023), 14 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:52,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:52,093 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:52,093 INFO L175 Difference]: Start difference. First operand has 191 places, 428 transitions, 4700 flow. Second operand 14 states and 1023 transitions. [2022-11-02 21:01:52,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 613 transitions, 7639 flow [2022-11-02 21:01:52,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 613 transitions, 7609 flow, removed 9 selfloop flow, removed 3 redundant places. [2022-11-02 21:01:52,347 INFO L231 Difference]: Finished difference. Result has 208 places, 465 transitions, 5885 flow [2022-11-02 21:01:52,348 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5885, PETRI_PLACES=208, PETRI_TRANSITIONS=465} [2022-11-02 21:01:52,351 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 107 predicate places. [2022-11-02 21:01:52,351 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 465 transitions, 5885 flow [2022-11-02 21:01:52,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:52,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:52,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:52,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:01:52,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:52,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1054438843, now seen corresponding path program 2 times [2022-11-02 21:01:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:52,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956738454] [2022-11-02 21:01:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:53,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:53,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956738454] [2022-11-02 21:01:53,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956738454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:53,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:53,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:53,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712836232] [2022-11-02 21:01:53,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:53,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:53,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:53,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:53,183 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:53,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 465 transitions, 5885 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:53,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:53,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:53,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:56,937 INFO L130 PetriNetUnfolder]: 2164/5599 cut-off events. [2022-11-02 21:01:56,937 INFO L131 PetriNetUnfolder]: For 32518/32538 co-relation queries the response was YES. [2022-11-02 21:01:57,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24583 conditions, 5599 events. 2164/5599 cut-off events. For 32518/32538 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 45994 event pairs, 296 based on Foata normal form. 23/5511 useless extension candidates. Maximal degree in co-relation 24488. Up to 1436 conditions per place. [2022-11-02 21:01:57,044 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 757 selfloop transitions, 134 changer transitions 8/953 dead transitions. [2022-11-02 21:01:57,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 953 transitions, 11900 flow [2022-11-02 21:01:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:01:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:01:57,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1218 transitions. [2022-11-02 21:01:57,050 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7660377358490567 [2022-11-02 21:01:57,050 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1218 transitions. [2022-11-02 21:01:57,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1218 transitions. [2022-11-02 21:01:57,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:57,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1218 transitions. [2022-11-02 21:01:57,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.2) internal successors, (1218), 15 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:57,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:57,062 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:57,062 INFO L175 Difference]: Start difference. First operand has 208 places, 465 transitions, 5885 flow. Second operand 15 states and 1218 transitions. [2022-11-02 21:01:57,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 953 transitions, 11900 flow [2022-11-02 21:01:57,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 953 transitions, 11712 flow, removed 32 selfloop flow, removed 6 redundant places. [2022-11-02 21:01:57,455 INFO L231 Difference]: Finished difference. Result has 221 places, 496 transitions, 6721 flow [2022-11-02 21:01:57,456 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5784, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6721, PETRI_PLACES=221, PETRI_TRANSITIONS=496} [2022-11-02 21:01:57,457 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 120 predicate places. [2022-11-02 21:01:57,457 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 496 transitions, 6721 flow [2022-11-02 21:01:57,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:57,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:57,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:57,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:01:57,459 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:01:57,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:57,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1859666001, now seen corresponding path program 4 times [2022-11-02 21:01:57,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:57,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272230541] [2022-11-02 21:01:57,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:57,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:58,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:58,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272230541] [2022-11-02 21:01:58,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272230541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:01:58,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:01:58,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:01:58,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716212704] [2022-11-02 21:01:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:01:58,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:01:58,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:58,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:01:58,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:01:58,101 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:01:58,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 496 transitions, 6721 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:58,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:58,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:01:58,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:01,261 INFO L130 PetriNetUnfolder]: 2313/5907 cut-off events. [2022-11-02 21:02:01,262 INFO L131 PetriNetUnfolder]: For 41560/41594 co-relation queries the response was YES. [2022-11-02 21:02:01,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27375 conditions, 5907 events. 2313/5907 cut-off events. For 41560/41594 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 49025 event pairs, 365 based on Foata normal form. 15/5799 useless extension candidates. Maximal degree in co-relation 27275. Up to 3397 conditions per place. [2022-11-02 21:02:01,326 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 469 selfloop transitions, 183 changer transitions 0/706 dead transitions. [2022-11-02 21:02:01,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 706 transitions, 10421 flow [2022-11-02 21:02:01,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:02:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:02:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-02 21:02:01,331 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-02 21:02:01,331 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-02 21:02:01,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-02 21:02:01,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:01,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-02 21:02:01,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:01,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:01,341 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:01,341 INFO L175 Difference]: Start difference. First operand has 221 places, 496 transitions, 6721 flow. Second operand 14 states and 1026 transitions. [2022-11-02 21:02:01,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 706 transitions, 10421 flow [2022-11-02 21:02:01,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 706 transitions, 10233 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-11-02 21:02:01,687 INFO L231 Difference]: Finished difference. Result has 233 places, 546 transitions, 8119 flow [2022-11-02 21:02:01,688 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8119, PETRI_PLACES=233, PETRI_TRANSITIONS=546} [2022-11-02 21:02:01,689 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 132 predicate places. [2022-11-02 21:02:01,690 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 546 transitions, 8119 flow [2022-11-02 21:02:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:01,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:01,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:02:01,691 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:01,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1803109231, now seen corresponding path program 3 times [2022-11-02 21:02:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:01,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470428036] [2022-11-02 21:02:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:01,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:02,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:02,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470428036] [2022-11-02 21:02:02,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470428036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:02,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:02,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:02,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84019610] [2022-11-02 21:02:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:02,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:02,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:02,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:02,408 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:02,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 546 transitions, 8119 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:02,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:02,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:02,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:06,381 INFO L130 PetriNetUnfolder]: 2460/6333 cut-off events. [2022-11-02 21:02:06,381 INFO L131 PetriNetUnfolder]: For 51173/51197 co-relation queries the response was YES. [2022-11-02 21:02:06,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 6333 events. 2460/6333 cut-off events. For 51173/51197 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 53343 event pairs, 345 based on Foata normal form. 25/6235 useless extension candidates. Maximal degree in co-relation 30142. Up to 1719 conditions per place. [2022-11-02 21:02:06,450 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 833 selfloop transitions, 168 changer transitions 8/1063 dead transitions. [2022-11-02 21:02:06,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1063 transitions, 15105 flow [2022-11-02 21:02:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-02 21:02:06,457 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-02 21:02:06,458 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-02 21:02:06,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-02 21:02:06,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:06,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-02 21:02:06,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:06,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:06,478 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:06,479 INFO L175 Difference]: Start difference. First operand has 233 places, 546 transitions, 8119 flow. Second operand 15 states and 1220 transitions. [2022-11-02 21:02:06,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1063 transitions, 15105 flow [2022-11-02 21:02:06,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1063 transitions, 14893 flow, removed 66 selfloop flow, removed 5 redundant places. [2022-11-02 21:02:06,887 INFO L231 Difference]: Finished difference. Result has 248 places, 591 transitions, 9391 flow [2022-11-02 21:02:06,888 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7999, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9391, PETRI_PLACES=248, PETRI_TRANSITIONS=591} [2022-11-02 21:02:06,889 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 147 predicate places. [2022-11-02 21:02:06,889 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 591 transitions, 9391 flow [2022-11-02 21:02:06,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:06,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:06,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:06,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:02:06,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:06,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1835629257, now seen corresponding path program 5 times [2022-11-02 21:02:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:06,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264287096] [2022-11-02 21:02:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:07,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:07,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264287096] [2022-11-02 21:02:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264287096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:07,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908338875] [2022-11-02 21:02:07,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:07,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:07,803 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:07,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 591 transitions, 9391 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:07,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:07,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:07,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:11,097 INFO L130 PetriNetUnfolder]: 2648/6738 cut-off events. [2022-11-02 21:02:11,097 INFO L131 PetriNetUnfolder]: For 64355/64393 co-relation queries the response was YES. [2022-11-02 21:02:11,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34030 conditions, 6738 events. 2648/6738 cut-off events. For 64355/64393 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 57426 event pairs, 442 based on Foata normal form. 17/6621 useless extension candidates. Maximal degree in co-relation 33917. Up to 3666 conditions per place. [2022-11-02 21:02:11,165 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 542 selfloop transitions, 220 changer transitions 0/816 dead transitions. [2022-11-02 21:02:11,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 816 transitions, 13642 flow [2022-11-02 21:02:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:02:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:02:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2022-11-02 21:02:11,171 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2022-11-02 21:02:11,172 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2022-11-02 21:02:11,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2022-11-02 21:02:11,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:11,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2022-11-02 21:02:11,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:11,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:11,180 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:11,180 INFO L175 Difference]: Start difference. First operand has 248 places, 591 transitions, 9391 flow. Second operand 14 states and 1026 transitions. [2022-11-02 21:02:11,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 816 transitions, 13642 flow [2022-11-02 21:02:11,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 816 transitions, 13383 flow, removed 33 selfloop flow, removed 8 redundant places. [2022-11-02 21:02:11,557 INFO L231 Difference]: Finished difference. Result has 261 places, 644 transitions, 11008 flow [2022-11-02 21:02:11,557 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9226, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11008, PETRI_PLACES=261, PETRI_TRANSITIONS=644} [2022-11-02 21:02:11,558 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 160 predicate places. [2022-11-02 21:02:11,558 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 644 transitions, 11008 flow [2022-11-02 21:02:11,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:11,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:11,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:11,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:02:11,559 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:11,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:11,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1779958819, now seen corresponding path program 4 times [2022-11-02 21:02:11,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:11,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639021811] [2022-11-02 21:02:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:11,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:12,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:12,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639021811] [2022-11-02 21:02:12,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639021811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:12,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:12,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:12,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392625132] [2022-11-02 21:02:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:12,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:12,397 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:12,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 644 transitions, 11008 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:12,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:12,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:12,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,137 INFO L130 PetriNetUnfolder]: 2821/7181 cut-off events. [2022-11-02 21:02:17,138 INFO L131 PetriNetUnfolder]: For 78907/78935 co-relation queries the response was YES. [2022-11-02 21:02:17,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37614 conditions, 7181 events. 2821/7181 cut-off events. For 78907/78935 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 61964 event pairs, 487 based on Foata normal form. 27/7071 useless extension candidates. Maximal degree in co-relation 37493. Up to 2074 conditions per place. [2022-11-02 21:02:17,252 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 917 selfloop transitions, 197 changer transitions 6/1174 dead transitions. [2022-11-02 21:02:17,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1174 transitions, 18850 flow [2022-11-02 21:02:17,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2022-11-02 21:02:17,257 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2022-11-02 21:02:17,257 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2022-11-02 21:02:17,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2022-11-02 21:02:17,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2022-11-02 21:02:17,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:17,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:17,267 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:17,267 INFO L175 Difference]: Start difference. First operand has 261 places, 644 transitions, 11008 flow. Second operand 15 states and 1220 transitions. [2022-11-02 21:02:17,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1174 transitions, 18850 flow [2022-11-02 21:02:17,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1174 transitions, 18726 flow, removed 50 selfloop flow, removed 4 redundant places. [2022-11-02 21:02:17,827 INFO L231 Difference]: Finished difference. Result has 278 places, 691 transitions, 12582 flow [2022-11-02 21:02:17,828 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12582, PETRI_PLACES=278, PETRI_TRANSITIONS=691} [2022-11-02 21:02:17,829 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 177 predicate places. [2022-11-02 21:02:17,829 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 691 transitions, 12582 flow [2022-11-02 21:02:17,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:17,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:17,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:02:17,831 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2137935371, now seen corresponding path program 6 times [2022-11-02 21:02:17,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791604914] [2022-11-02 21:02:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:18,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:18,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791604914] [2022-11-02 21:02:18,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791604914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:18,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:18,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722239835] [2022-11-02 21:02:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:18,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:18,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:18,544 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:18,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 691 transitions, 12582 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:18,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:18,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:23,292 INFO L130 PetriNetUnfolder]: 3471/8835 cut-off events. [2022-11-02 21:02:23,292 INFO L131 PetriNetUnfolder]: For 103313/103334 co-relation queries the response was YES. [2022-11-02 21:02:23,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47147 conditions, 8835 events. 3471/8835 cut-off events. For 103313/103334 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 79465 event pairs, 656 based on Foata normal form. 11/8668 useless extension candidates. Maximal degree in co-relation 47019. Up to 4267 conditions per place. [2022-11-02 21:02:23,434 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 796 selfloop transitions, 213 changer transitions 1/1064 dead transitions. [2022-11-02 21:02:23,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1064 transitions, 19008 flow [2022-11-02 21:02:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:02:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:02:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1046 transitions. [2022-11-02 21:02:23,437 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7048517520215634 [2022-11-02 21:02:23,438 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1046 transitions. [2022-11-02 21:02:23,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1046 transitions. [2022-11-02 21:02:23,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:23,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1046 transitions. [2022-11-02 21:02:23,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.71428571428571) internal successors, (1046), 14 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:23,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:23,446 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:23,446 INFO L175 Difference]: Start difference. First operand has 278 places, 691 transitions, 12582 flow. Second operand 14 states and 1046 transitions. [2022-11-02 21:02:23,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1064 transitions, 19008 flow [2022-11-02 21:02:24,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1064 transitions, 18757 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-02 21:02:24,165 INFO L231 Difference]: Finished difference. Result has 293 places, 748 transitions, 14495 flow [2022-11-02 21:02:24,167 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14495, PETRI_PLACES=293, PETRI_TRANSITIONS=748} [2022-11-02 21:02:24,167 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2022-11-02 21:02:24,167 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 748 transitions, 14495 flow [2022-11-02 21:02:24,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:24,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:24,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:24,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:02:24,169 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash -955913989, now seen corresponding path program 5 times [2022-11-02 21:02:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:24,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097025414] [2022-11-02 21:02:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:24,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:24,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097025414] [2022-11-02 21:02:24,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097025414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:24,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:24,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584779371] [2022-11-02 21:02:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:24,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:24,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:24,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:24,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:24,833 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:24,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 748 transitions, 14495 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:24,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:24,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:24,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:30,895 INFO L130 PetriNetUnfolder]: 4007/10212 cut-off events. [2022-11-02 21:02:30,895 INFO L131 PetriNetUnfolder]: For 136258/136296 co-relation queries the response was YES. [2022-11-02 21:02:31,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56240 conditions, 10212 events. 4007/10212 cut-off events. For 136258/136296 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 94857 event pairs, 716 based on Foata normal form. 31/10040 useless extension candidates. Maximal degree in co-relation 56103. Up to 3277 conditions per place. [2022-11-02 21:02:31,070 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1155 selfloop transitions, 205 changer transitions 2/1416 dead transitions. [2022-11-02 21:02:31,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1416 transitions, 25348 flow [2022-11-02 21:02:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1223 transitions. [2022-11-02 21:02:31,073 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.769182389937107 [2022-11-02 21:02:31,073 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1223 transitions. [2022-11-02 21:02:31,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1223 transitions. [2022-11-02 21:02:31,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:31,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1223 transitions. [2022-11-02 21:02:31,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.53333333333333) internal successors, (1223), 15 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:31,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:31,082 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:31,082 INFO L175 Difference]: Start difference. First operand has 293 places, 748 transitions, 14495 flow. Second operand 15 states and 1223 transitions. [2022-11-02 21:02:31,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1416 transitions, 25348 flow [2022-11-02 21:02:32,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1416 transitions, 25164 flow, removed 80 selfloop flow, removed 4 redundant places. [2022-11-02 21:02:32,284 INFO L231 Difference]: Finished difference. Result has 310 places, 799 transitions, 16172 flow [2022-11-02 21:02:32,285 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=14334, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16172, PETRI_PLACES=310, PETRI_TRANSITIONS=799} [2022-11-02 21:02:32,286 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 209 predicate places. [2022-11-02 21:02:32,286 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 799 transitions, 16172 flow [2022-11-02 21:02:32,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:32,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:32,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:32,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:02:32,288 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1775369167, now seen corresponding path program 7 times [2022-11-02 21:02:32,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:32,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425347585] [2022-11-02 21:02:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:32,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:32,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425347585] [2022-11-02 21:02:32,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425347585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:32,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:32,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:32,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759575816] [2022-11-02 21:02:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:32,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:32,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:32,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:32,915 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:32,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 799 transitions, 16172 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:32,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:32,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:32,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:40,612 INFO L130 PetriNetUnfolder]: 4551/11566 cut-off events. [2022-11-02 21:02:40,613 INFO L131 PetriNetUnfolder]: For 163249/163270 co-relation queries the response was YES. [2022-11-02 21:02:40,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64819 conditions, 11566 events. 4551/11566 cut-off events. For 163249/163270 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109511 event pairs, 921 based on Foata normal form. 11/11330 useless extension candidates. Maximal degree in co-relation 64675. Up to 4251 conditions per place. [2022-11-02 21:02:40,862 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1006 selfloop transitions, 252 changer transitions 1/1313 dead transitions. [2022-11-02 21:02:40,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1313 transitions, 24969 flow [2022-11-02 21:02:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1139 transitions. [2022-11-02 21:02:40,866 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2022-11-02 21:02:40,866 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1139 transitions. [2022-11-02 21:02:40,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1139 transitions. [2022-11-02 21:02:40,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:40,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1139 transitions. [2022-11-02 21:02:40,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.93333333333334) internal successors, (1139), 15 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:40,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:40,874 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:40,875 INFO L175 Difference]: Start difference. First operand has 310 places, 799 transitions, 16172 flow. Second operand 15 states and 1139 transitions. [2022-11-02 21:02:40,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1313 transitions, 24969 flow [2022-11-02 21:02:42,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1313 transitions, 24689 flow, removed 41 selfloop flow, removed 7 redundant places. [2022-11-02 21:02:42,241 INFO L231 Difference]: Finished difference. Result has 326 places, 868 transitions, 18706 flow [2022-11-02 21:02:42,241 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15958, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18706, PETRI_PLACES=326, PETRI_TRANSITIONS=868} [2022-11-02 21:02:42,242 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 225 predicate places. [2022-11-02 21:02:42,242 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 868 transitions, 18706 flow [2022-11-02 21:02:42,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:42,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:42,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:42,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:02:42,244 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:42,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:42,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1938109391, now seen corresponding path program 6 times [2022-11-02 21:02:42,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:42,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657095108] [2022-11-02 21:02:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:42,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:42,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657095108] [2022-11-02 21:02:42,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657095108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:42,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:42,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327653035] [2022-11-02 21:02:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:42,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:42,915 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:02:42,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 868 transitions, 18706 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:42,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:42,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:02:42,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:50,147 INFO L130 PetriNetUnfolder]: 4534/11505 cut-off events. [2022-11-02 21:02:50,147 INFO L131 PetriNetUnfolder]: For 183396/183439 co-relation queries the response was YES. [2022-11-02 21:02:50,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66167 conditions, 11505 events. 4534/11505 cut-off events. For 183396/183439 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109231 event pairs, 891 based on Foata normal form. 31/11294 useless extension candidates. Maximal degree in co-relation 66014. Up to 4270 conditions per place. [2022-11-02 21:02:50,363 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1111 selfloop transitions, 220 changer transitions 4/1389 dead transitions. [2022-11-02 21:02:50,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1389 transitions, 27849 flow [2022-11-02 21:02:50,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2022-11-02 21:02:50,368 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2022-11-02 21:02:50,368 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2022-11-02 21:02:50,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2022-11-02 21:02:50,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:50,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2022-11-02 21:02:50,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:50,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:50,376 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:50,376 INFO L175 Difference]: Start difference. First operand has 326 places, 868 transitions, 18706 flow. Second operand 15 states and 1175 transitions. [2022-11-02 21:02:50,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1389 transitions, 27849 flow [2022-11-02 21:02:52,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 1389 transitions, 27553 flow, removed 144 selfloop flow, removed 3 redundant places. [2022-11-02 21:02:52,071 INFO L231 Difference]: Finished difference. Result has 345 places, 902 transitions, 19910 flow [2022-11-02 21:02:52,073 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19910, PETRI_PLACES=345, PETRI_TRANSITIONS=902} [2022-11-02 21:02:52,073 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 244 predicate places. [2022-11-02 21:02:52,074 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 902 transitions, 19910 flow [2022-11-02 21:02:52,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:52,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:52,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:52,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:02:52,075 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:02:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:52,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1828752928, now seen corresponding path program 1 times [2022-11-02 21:02:52,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:52,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053678289] [2022-11-02 21:02:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:52,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:52,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053678289] [2022-11-02 21:02:52,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053678289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:52,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:52,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:02:52,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830542163] [2022-11-02 21:02:52,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:02:52,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:52,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:02:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:02:52,668 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-02 21:02:52,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 902 transitions, 19910 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:02:52,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:52,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-02 21:02:52,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:01,183 INFO L130 PetriNetUnfolder]: 5123/12486 cut-off events. [2022-11-02 21:03:01,183 INFO L131 PetriNetUnfolder]: For 203877/203892 co-relation queries the response was YES. [2022-11-02 21:03:01,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72586 conditions, 12486 events. 5123/12486 cut-off events. For 203877/203892 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 116793 event pairs, 1521 based on Foata normal form. 13/12213 useless extension candidates. Maximal degree in co-relation 72425. Up to 4958 conditions per place. [2022-11-02 21:03:01,480 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1016 selfloop transitions, 258 changer transitions 7/1332 dead transitions. [2022-11-02 21:03:01,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1332 transitions, 27465 flow [2022-11-02 21:03:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:03:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 21:03:01,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2022-11-02 21:03:01,484 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7486522911051213 [2022-11-02 21:03:01,484 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1111 transitions. [2022-11-02 21:03:01,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1111 transitions. [2022-11-02 21:03:01,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:01,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1111 transitions. [2022-11-02 21:03:01,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.35714285714286) internal successors, (1111), 14 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:01,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:01,492 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:01,493 INFO L175 Difference]: Start difference. First operand has 345 places, 902 transitions, 19910 flow. Second operand 14 states and 1111 transitions. [2022-11-02 21:03:01,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1332 transitions, 27465 flow [2022-11-02 21:03:03,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1332 transitions, 27147 flow, removed 95 selfloop flow, removed 6 redundant places. [2022-11-02 21:03:03,509 INFO L231 Difference]: Finished difference. Result has 361 places, 1044 transitions, 22610 flow [2022-11-02 21:03:03,510 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19593, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22610, PETRI_PLACES=361, PETRI_TRANSITIONS=1044} [2022-11-02 21:03:03,510 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 260 predicate places. [2022-11-02 21:03:03,511 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1044 transitions, 22610 flow [2022-11-02 21:03:03,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:03,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:03,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:03,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:03:03,512 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:03:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1058484081, now seen corresponding path program 8 times [2022-11-02 21:03:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:03,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473565849] [2022-11-02 21:03:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:04,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:04,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473565849] [2022-11-02 21:03:04,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473565849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:04,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:04,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:03:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047259691] [2022-11-02 21:03:04,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:04,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:03:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:04,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:03:04,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:03:04,277 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-02 21:03:04,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1044 transitions, 22610 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:04,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:04,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-02 21:03:04,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:12,201 INFO L130 PetriNetUnfolder]: 4562/11529 cut-off events. [2022-11-02 21:03:12,202 INFO L131 PetriNetUnfolder]: For 204321/204371 co-relation queries the response was YES. [2022-11-02 21:03:12,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70500 conditions, 11529 events. 4562/11529 cut-off events. For 204321/204371 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 109091 event pairs, 972 based on Foata normal form. 22/11298 useless extension candidates. Maximal degree in co-relation 70331. Up to 4153 conditions per place. [2022-11-02 21:03:12,742 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 1189 selfloop transitions, 278 changer transitions 0/1525 dead transitions. [2022-11-02 21:03:12,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1525 transitions, 31733 flow [2022-11-02 21:03:12,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:03:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 21:03:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2022-11-02 21:03:12,746 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7270047169811321 [2022-11-02 21:03:12,746 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2022-11-02 21:03:12,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2022-11-02 21:03:12,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:12,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2022-11-02 21:03:12,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,753 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:12,754 INFO L175 Difference]: Start difference. First operand has 361 places, 1044 transitions, 22610 flow. Second operand 16 states and 1233 transitions. [2022-11-02 21:03:12,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1525 transitions, 31733 flow [2022-11-02 21:03:14,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1525 transitions, 31375 flow, removed 173 selfloop flow, removed 3 redundant places. [2022-11-02 21:03:14,711 INFO L231 Difference]: Finished difference. Result has 380 places, 1093 transitions, 24455 flow [2022-11-02 21:03:14,712 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22414, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24455, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2022-11-02 21:03:14,713 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 279 predicate places. [2022-11-02 21:03:14,713 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 24455 flow [2022-11-02 21:03:14,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:14,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:14,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:14,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:03:14,715 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:03:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash 363994360, now seen corresponding path program 2 times [2022-11-02 21:03:14,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:14,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265268577] [2022-11-02 21:03:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:14,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:15,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:15,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265268577] [2022-11-02 21:03:15,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265268577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:15,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:15,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:03:15,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676781303] [2022-11-02 21:03:15,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:15,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:03:15,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:15,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:03:15,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:03:15,142 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-02 21:03:15,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 24455 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:15,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:15,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-02 21:03:15,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:03:24,893 INFO L130 PetriNetUnfolder]: 5193/12668 cut-off events. [2022-11-02 21:03:24,893 INFO L131 PetriNetUnfolder]: For 233851/233890 co-relation queries the response was YES. [2022-11-02 21:03:25,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77831 conditions, 12668 events. 5193/12668 cut-off events. For 233851/233890 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 118912 event pairs, 1541 based on Foata normal form. 27/12409 useless extension candidates. Maximal degree in co-relation 77655. Up to 4958 conditions per place. [2022-11-02 21:03:25,163 INFO L137 encePairwiseOnDemand]: 81/106 looper letters, 1076 selfloop transitions, 305 changer transitions 7/1439 dead transitions. [2022-11-02 21:03:25,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1439 transitions, 31453 flow [2022-11-02 21:03:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:03:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:03:25,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1184 transitions. [2022-11-02 21:03:25,166 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7446540880503144 [2022-11-02 21:03:25,166 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1184 transitions. [2022-11-02 21:03:25,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1184 transitions. [2022-11-02 21:03:25,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:03:25,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1184 transitions. [2022-11-02 21:03:25,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.93333333333334) internal successors, (1184), 15 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,172 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:25,172 INFO L175 Difference]: Start difference. First operand has 380 places, 1093 transitions, 24455 flow. Second operand 15 states and 1184 transitions. [2022-11-02 21:03:25,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1439 transitions, 31453 flow [2022-11-02 21:03:27,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1439 transitions, 31171 flow, removed 138 selfloop flow, removed 3 redundant places. [2022-11-02 21:03:27,341 INFO L231 Difference]: Finished difference. Result has 396 places, 1127 transitions, 25766 flow [2022-11-02 21:03:27,342 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24285, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25766, PETRI_PLACES=396, PETRI_TRANSITIONS=1127} [2022-11-02 21:03:27,343 INFO L287 CegarLoopForPetriNet]: 101 programPoint places, 295 predicate places. [2022-11-02 21:03:27,343 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 1127 transitions, 25766 flow [2022-11-02 21:03:27,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:03:27,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:03:27,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:03:27,344 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-02 21:03:27,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:03:27,345 INFO L85 PathProgramCache]: Analyzing trace with hash 636469624, now seen corresponding path program 3 times [2022-11-02 21:03:27,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:03:27,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260110964] [2022-11-02 21:03:27,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:03:27,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:03:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:03:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:03:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:03:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260110964] [2022-11-02 21:03:27,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260110964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:03:27,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:03:27,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:03:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762711823] [2022-11-02 21:03:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:03:27,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:03:27,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:03:27,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:03:27,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:03:27,724 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2022-11-02 21:03:27,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1127 transitions, 25766 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:03:27,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:03:27,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2022-11-02 21:03:27,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand