./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:27:43,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:27:43,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:27:43,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:27:43,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:27:43,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:27:43,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:27:43,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:27:43,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:27:43,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:27:43,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:27:43,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:27:43,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:27:43,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:27:43,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:27:43,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:27:43,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:27:43,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:27:43,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:27:43,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:27:43,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:27:43,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:27:43,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:27:43,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:27:43,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:27:43,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:27:43,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:27:43,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:27:43,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:27:43,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:27:43,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:27:43,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:27:43,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:27:43,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:27:43,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:27:43,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:27:43,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:27:43,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:27:43,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:27:43,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:27:43,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:27:43,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:27:43,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:27:43,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:27:43,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:27:43,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:27:43,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:27:43,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:27:43,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:27:43,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:27:43,923 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:27:43,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:27:43,925 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:27:43,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:27:43,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:27:43,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:27:43,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:27:43,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:27:43,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:27:43,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:27:43,927 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:27:43,927 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:27:43,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:27:43,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:27:43,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:27:43,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:27:43,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:27:43,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:27:43,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:43,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:27:43,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:27:43,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:27:43,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:27:43,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:27:43,933 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:27:43,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:27:43,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:27:43,933 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_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-16 11:27:44,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:27:44,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:27:44,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:27:44,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:27:44,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:27:44,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-16 11:27:44,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/data/20732cd48/7180fd63cf794ac5922eba7b8715fd47/FLAGaaa8ea607 [2022-11-16 11:27:45,182 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:27:45,191 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-16 11:27:45,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/data/20732cd48/7180fd63cf794ac5922eba7b8715fd47/FLAGaaa8ea607 [2022-11-16 11:27:45,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/data/20732cd48/7180fd63cf794ac5922eba7b8715fd47 [2022-11-16 11:27:45,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:27:45,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:27:45,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:45,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:27:45,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:27:45,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:45" (1/1) ... [2022-11-16 11:27:45,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36034278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:45, skipping insertion in model container [2022-11-16 11:27:45,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:27:45" (1/1) ... [2022-11-16 11:27:45,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:27:45,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:27:46,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:46,147 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:27:46,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:27:46,293 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:27:46,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46 WrapperNode [2022-11-16 11:27:46,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:27:46,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:46,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:27:46,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:27:46,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,369 INFO L138 Inliner]: procedures = 368, calls = 55, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 206 [2022-11-16 11:27:46,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:27:46,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:27:46,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:27:46,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:27:46,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,418 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:27:46,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:27:46,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:27:46,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:27:46,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (1/1) ... [2022-11-16 11:27:46,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:27:46,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:27:46,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:27:46,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_023a7839-d505-44a4-ab47-26f603bf4045/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:27:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:27:46,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:27:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:27:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:27:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:27:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:27:46,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:27:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:27:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:27:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:27:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:27:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:27:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:27:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:27:46,548 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:27:46,762 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:46,764 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:47,461 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:47,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:47,478 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:27:47,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:47 BoogieIcfgContainer [2022-11-16 11:27:47,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:47,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:47,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:47,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:47,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:27:45" (1/3) ... [2022-11-16 11:27:47,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55693ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:47, skipping insertion in model container [2022-11-16 11:27:47,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:27:46" (2/3) ... [2022-11-16 11:27:47,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55693ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:47, skipping insertion in model container [2022-11-16 11:27:47,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:47" (3/3) ... [2022-11-16 11:27:47,498 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-16 11:27:47,507 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:47,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:47,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-16 11:27:47,520 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:47,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:27:47,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 313 transitions, 631 flow [2022-11-16 11:27:47,862 INFO L130 PetriNetUnfolder]: 0/312 cut-off events. [2022-11-16 11:27:47,862 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:47,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 312 events. 0/312 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 11:27:47,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 313 transitions, 631 flow [2022-11-16 11:27:47,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 312 transitions, 627 flow [2022-11-16 11:27:47,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:47,897 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;@360dd81b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:47,897 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-16 11:27:47,919 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-11-16 11:27:47,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:47,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:47,921 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:47,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1579257422, now seen corresponding path program 1 times [2022-11-16 11:27:47,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:47,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513282766] [2022-11-16 11:27:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:47,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:48,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:48,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513282766] [2022-11-16 11:27:48,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513282766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:48,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:48,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:48,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515117456] [2022-11-16 11:27:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:49,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:49,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:49,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:49,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 313 [2022-11-16 11:27:49,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 627 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:49,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:49,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 313 [2022-11-16 11:27:49,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:50,492 INFO L130 PetriNetUnfolder]: 864/2873 cut-off events. [2022-11-16 11:27:50,492 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:27:50,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 2873 events. 864/2873 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17960 event pairs, 864 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 4478. Up to 1850 conditions per place. [2022-11-16 11:27:50,516 INFO L137 encePairwiseOnDemand]: 289/313 looper letters, 121 selfloop transitions, 20 changer transitions 0/308 dead transitions. [2022-11-16 11:27:50,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 308 transitions, 901 flow [2022-11-16 11:27:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1153 transitions. [2022-11-16 11:27:50,537 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.61395101171459 [2022-11-16 11:27:50,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1153 transitions. [2022-11-16 11:27:50,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1153 transitions. [2022-11-16 11:27:50,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:50,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1153 transitions. [2022-11-16 11:27:50,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:50,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:50,564 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:50,566 INFO L175 Difference]: Start difference. First operand has 316 places, 312 transitions, 627 flow. Second operand 6 states and 1153 transitions. [2022-11-16 11:27:50,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 308 transitions, 901 flow [2022-11-16 11:27:50,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 308 transitions, 900 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:50,582 INFO L231 Difference]: Finished difference. Result has 316 places, 308 transitions, 658 flow [2022-11-16 11:27:50,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=658, PETRI_PLACES=316, PETRI_TRANSITIONS=308} [2022-11-16 11:27:50,588 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 0 predicate places. [2022-11-16 11:27:50,588 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 308 transitions, 658 flow [2022-11-16 11:27:50,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:50,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:50,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:50,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:50,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1485619206, now seen corresponding path program 1 times [2022-11-16 11:27:50,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:50,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055420516] [2022-11-16 11:27:50,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:50,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:51,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:51,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055420516] [2022-11-16 11:27:51,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055420516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:51,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:51,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103670317] [2022-11-16 11:27:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:51,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:51,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:51,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:51,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 313 [2022-11-16 11:27:51,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 308 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 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) [2022-11-16 11:27:51,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:51,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 313 [2022-11-16 11:27:51,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:52,144 INFO L130 PetriNetUnfolder]: 864/2869 cut-off events. [2022-11-16 11:27:52,145 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:27:52,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 2869 events. 864/2869 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17869 event pairs, 864 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 4520. Up to 1846 conditions per place. [2022-11-16 11:27:52,161 INFO L137 encePairwiseOnDemand]: 289/313 looper letters, 117 selfloop transitions, 20 changer transitions 0/304 dead transitions. [2022-11-16 11:27:52,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 304 transitions, 924 flow [2022-11-16 11:27:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:52,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2022-11-16 11:27:52,166 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6118210862619808 [2022-11-16 11:27:52,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1149 transitions. [2022-11-16 11:27:52,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1149 transitions. [2022-11-16 11:27:52,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:52,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1149 transitions. [2022-11-16 11:27:52,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,177 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,178 INFO L175 Difference]: Start difference. First operand has 316 places, 308 transitions, 658 flow. Second operand 6 states and 1149 transitions. [2022-11-16 11:27:52,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 304 transitions, 924 flow [2022-11-16 11:27:52,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 304 transitions, 884 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:52,188 INFO L231 Difference]: Finished difference. Result has 312 places, 304 transitions, 650 flow [2022-11-16 11:27:52,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=312, PETRI_TRANSITIONS=304} [2022-11-16 11:27:52,189 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -4 predicate places. [2022-11-16 11:27:52,190 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 304 transitions, 650 flow [2022-11-16 11:27:52,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 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) [2022-11-16 11:27:52,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:52,191 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:52,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:52,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2109758001, now seen corresponding path program 1 times [2022-11-16 11:27:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:52,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428297797] [2022-11-16 11:27:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:52,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:52,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428297797] [2022-11-16 11:27:52,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428297797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:52,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:52,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:52,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634085395] [2022-11-16 11:27:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:52,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:52,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 313 [2022-11-16 11:27:52,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 304 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 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) [2022-11-16 11:27:52,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:52,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 313 [2022-11-16 11:27:52,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:52,400 INFO L130 PetriNetUnfolder]: 9/531 cut-off events. [2022-11-16 11:27:52,401 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:52,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 531 events. 9/531 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1500 event pairs, 9 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-16 11:27:52,403 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 16 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-16 11:27:52,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 303 transitions, 684 flow [2022-11-16 11:27:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-16 11:27:52,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9595314164004259 [2022-11-16 11:27:52,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-16 11:27:52,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-16 11:27:52,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:52,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-16 11:27:52,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,415 INFO L175 Difference]: Start difference. First operand has 312 places, 304 transitions, 650 flow. Second operand 3 states and 901 transitions. [2022-11-16 11:27:52,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 303 transitions, 684 flow [2022-11-16 11:27:52,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 303 transitions, 644 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:52,423 INFO L231 Difference]: Finished difference. Result has 308 places, 303 transitions, 612 flow [2022-11-16 11:27:52,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2022-11-16 11:27:52,425 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -8 predicate places. [2022-11-16 11:27:52,425 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 612 flow [2022-11-16 11:27:52,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 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) [2022-11-16 11:27:52,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:52,427 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:52,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:52,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1817743894, now seen corresponding path program 1 times [2022-11-16 11:27:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:52,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591256999] [2022-11-16 11:27:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:52,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:52,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591256999] [2022-11-16 11:27:52,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591256999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:52,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:52,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:52,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383884183] [2022-11-16 11:27:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:52,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:52,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:52,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:52,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:52,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 313 [2022-11-16 11:27:52,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:52,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 313 [2022-11-16 11:27:52,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:52,612 INFO L130 PetriNetUnfolder]: 4/468 cut-off events. [2022-11-16 11:27:52,613 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:27:52,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 468 events. 4/468 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1081 event pairs, 4 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 420. Up to 17 conditions per place. [2022-11-16 11:27:52,664 INFO L137 encePairwiseOnDemand]: 308/313 looper letters, 10 selfloop transitions, 1 changer transitions 0/299 dead transitions. [2022-11-16 11:27:52,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 299 transitions, 626 flow [2022-11-16 11:27:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:52,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2022-11-16 11:27:52,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648562300319489 [2022-11-16 11:27:52,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2022-11-16 11:27:52,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2022-11-16 11:27:52,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:52,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2022-11-16 11:27:52,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,674 INFO L175 Difference]: Start difference. First operand has 308 places, 303 transitions, 612 flow. Second operand 3 states and 906 transitions. [2022-11-16 11:27:52,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 299 transitions, 626 flow [2022-11-16 11:27:52,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 299 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:52,679 INFO L231 Difference]: Finished difference. Result has 304 places, 299 transitions, 602 flow [2022-11-16 11:27:52,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=304, PETRI_TRANSITIONS=299} [2022-11-16 11:27:52,680 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -12 predicate places. [2022-11-16 11:27:52,681 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 299 transitions, 602 flow [2022-11-16 11:27:52,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:52,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:52,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:52,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:52,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash 708730018, now seen corresponding path program 1 times [2022-11-16 11:27:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:52,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855828369] [2022-11-16 11:27:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:52,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:53,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855828369] [2022-11-16 11:27:53,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855828369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:53,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:53,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:53,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131264844] [2022-11-16 11:27:53,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:53,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:53,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:53,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:53,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:53,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 313 [2022-11-16 11:27:53,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 299 transitions, 602 flow. Second operand has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:53,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:53,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 313 [2022-11-16 11:27:53,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:54,155 INFO L130 PetriNetUnfolder]: 925/3035 cut-off events. [2022-11-16 11:27:54,155 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:54,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5012 conditions, 3035 events. 925/3035 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19062 event pairs, 925 based on Foata normal form. 0/2670 useless extension candidates. Maximal degree in co-relation 4927. Up to 1967 conditions per place. [2022-11-16 11:27:54,173 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 116 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2022-11-16 11:27:54,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 298 transitions, 842 flow [2022-11-16 11:27:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1220 transitions. [2022-11-16 11:27:54,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6496272630457934 [2022-11-16 11:27:54,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1220 transitions. [2022-11-16 11:27:54,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1220 transitions. [2022-11-16 11:27:54,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:54,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1220 transitions. [2022-11-16 11:27:54,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 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) [2022-11-16 11:27:54,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,190 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,190 INFO L175 Difference]: Start difference. First operand has 304 places, 299 transitions, 602 flow. Second operand 6 states and 1220 transitions. [2022-11-16 11:27:54,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 298 transitions, 842 flow [2022-11-16 11:27:54,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 298 transitions, 841 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:54,199 INFO L231 Difference]: Finished difference. Result has 307 places, 298 transitions, 609 flow [2022-11-16 11:27:54,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=307, PETRI_TRANSITIONS=298} [2022-11-16 11:27:54,200 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -9 predicate places. [2022-11-16 11:27:54,200 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 298 transitions, 609 flow [2022-11-16 11:27:54,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:54,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:54,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:27:54,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash 834139185, now seen corresponding path program 1 times [2022-11-16 11:27:54,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:54,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65847968] [2022-11-16 11:27:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:54,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:54,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:54,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65847968] [2022-11-16 11:27:54,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65847968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:54,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:54,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807454433] [2022-11-16 11:27:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:54,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:54,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:54,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:54,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 313 [2022-11-16 11:27:54,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 298 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 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) [2022-11-16 11:27:54,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:54,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 313 [2022-11-16 11:27:54,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:54,458 INFO L130 PetriNetUnfolder]: 9/430 cut-off events. [2022-11-16 11:27:54,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:54,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 430 events. 9/430 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 778 event pairs, 9 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 404. Up to 35 conditions per place. [2022-11-16 11:27:54,461 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 16 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2022-11-16 11:27:54,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 297 transitions, 643 flow [2022-11-16 11:27:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-16 11:27:54,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9595314164004259 [2022-11-16 11:27:54,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-16 11:27:54,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-16 11:27:54,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:54,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-16 11:27:54,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,471 INFO L175 Difference]: Start difference. First operand has 307 places, 298 transitions, 609 flow. Second operand 3 states and 901 transitions. [2022-11-16 11:27:54,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 297 transitions, 643 flow [2022-11-16 11:27:54,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 297 transitions, 633 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:54,485 INFO L231 Difference]: Finished difference. Result has 303 places, 297 transitions, 601 flow [2022-11-16 11:27:54,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=303, PETRI_TRANSITIONS=297} [2022-11-16 11:27:54,489 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -13 predicate places. [2022-11-16 11:27:54,490 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 297 transitions, 601 flow [2022-11-16 11:27:54,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 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) [2022-11-16 11:27:54,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:54,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:54,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:27:54,492 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:54,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash -264018609, now seen corresponding path program 1 times [2022-11-16 11:27:54,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:54,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55622742] [2022-11-16 11:27:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:54,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:54,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:54,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55622742] [2022-11-16 11:27:54,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55622742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:54,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:54,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:27:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576033155] [2022-11-16 11:27:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:54,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:27:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:27:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:27:54,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 313 [2022-11-16 11:27:54,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 297 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:54,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 313 [2022-11-16 11:27:54,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:54,698 INFO L130 PetriNetUnfolder]: 4/386 cut-off events. [2022-11-16 11:27:54,698 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:27:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 386 events. 4/386 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 523 event pairs, 4 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 341. Up to 17 conditions per place. [2022-11-16 11:27:54,701 INFO L137 encePairwiseOnDemand]: 308/313 looper letters, 10 selfloop transitions, 1 changer transitions 0/293 dead transitions. [2022-11-16 11:27:54,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 293 transitions, 615 flow [2022-11-16 11:27:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:27:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:27:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2022-11-16 11:27:54,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648562300319489 [2022-11-16 11:27:54,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2022-11-16 11:27:54,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2022-11-16 11:27:54,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:54,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2022-11-16 11:27:54,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,713 INFO L175 Difference]: Start difference. First operand has 303 places, 297 transitions, 601 flow. Second operand 3 states and 906 transitions. [2022-11-16 11:27:54,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 293 transitions, 615 flow [2022-11-16 11:27:54,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 293 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:27:54,721 INFO L231 Difference]: Finished difference. Result has 299 places, 293 transitions, 591 flow [2022-11-16 11:27:54,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=299, PETRI_TRANSITIONS=293} [2022-11-16 11:27:54,723 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -17 predicate places. [2022-11-16 11:27:54,723 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 293 transitions, 591 flow [2022-11-16 11:27:54,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:54,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:54,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:54,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:27:54,726 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:54,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash -123328695, now seen corresponding path program 1 times [2022-11-16 11:27:54,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:54,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009109202] [2022-11-16 11:27:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:54,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:55,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:55,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009109202] [2022-11-16 11:27:55,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009109202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:55,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:55,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793628405] [2022-11-16 11:27:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:55,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:55,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:55,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 313 [2022-11-16 11:27:55,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 293 transitions, 591 flow. Second operand has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:55,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:55,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 313 [2022-11-16 11:27:55,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:56,586 INFO L130 PetriNetUnfolder]: 925/2946 cut-off events. [2022-11-16 11:27:56,586 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:27:56,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 2946 events. 925/2946 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18304 event pairs, 925 based on Foata normal form. 0/2615 useless extension candidates. Maximal degree in co-relation 4839. Up to 1966 conditions per place. [2022-11-16 11:27:56,602 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 115 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2022-11-16 11:27:56,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 292 transitions, 829 flow [2022-11-16 11:27:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2022-11-16 11:27:56,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6490947816826411 [2022-11-16 11:27:56,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2022-11-16 11:27:56,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2022-11-16 11:27:56,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:56,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2022-11-16 11:27:56,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,617 INFO L175 Difference]: Start difference. First operand has 299 places, 293 transitions, 591 flow. Second operand 6 states and 1219 transitions. [2022-11-16 11:27:56,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 292 transitions, 829 flow [2022-11-16 11:27:56,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 292 transitions, 828 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:27:56,623 INFO L231 Difference]: Finished difference. Result has 302 places, 292 transitions, 598 flow [2022-11-16 11:27:56,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=302, PETRI_TRANSITIONS=292} [2022-11-16 11:27:56,626 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -14 predicate places. [2022-11-16 11:27:56,626 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 292 transitions, 598 flow [2022-11-16 11:27:56,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:56,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:56,627 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:56,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:27:56,628 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 722055751, now seen corresponding path program 1 times [2022-11-16 11:27:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174178694] [2022-11-16 11:27:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:57,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:57,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174178694] [2022-11-16 11:27:57,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174178694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:57,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:57,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:27:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408988957] [2022-11-16 11:27:57,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:57,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:27:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:57,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:27:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:27:57,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-16 11:27:57,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 292 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 196.16666666666666) internal successors, (1177), 6 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:57,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:57,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-16 11:27:57,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:59,301 INFO L130 PetriNetUnfolder]: 1392/4481 cut-off events. [2022-11-16 11:27:59,301 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:27:59,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7440 conditions, 4481 events. 1392/4481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32564 event pairs, 181 based on Foata normal form. 0/4036 useless extension candidates. Maximal degree in co-relation 7356. Up to 1396 conditions per place. [2022-11-16 11:27:59,331 INFO L137 encePairwiseOnDemand]: 294/313 looper letters, 220 selfloop transitions, 38 changer transitions 0/433 dead transitions. [2022-11-16 11:27:59,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 433 transitions, 1396 flow [2022-11-16 11:27:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:27:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:27:59,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1376 transitions. [2022-11-16 11:27:59,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7326943556975506 [2022-11-16 11:27:59,336 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1376 transitions. [2022-11-16 11:27:59,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1376 transitions. [2022-11-16 11:27:59,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:59,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1376 transitions. [2022-11-16 11:27:59,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:59,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:59,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:59,346 INFO L175 Difference]: Start difference. First operand has 302 places, 292 transitions, 598 flow. Second operand 6 states and 1376 transitions. [2022-11-16 11:27:59,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 433 transitions, 1396 flow [2022-11-16 11:27:59,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 433 transitions, 1386 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:27:59,356 INFO L231 Difference]: Finished difference. Result has 306 places, 328 transitions, 846 flow [2022-11-16 11:27:59,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=846, PETRI_PLACES=306, PETRI_TRANSITIONS=328} [2022-11-16 11:27:59,358 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -10 predicate places. [2022-11-16 11:27:59,358 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 328 transitions, 846 flow [2022-11-16 11:27:59,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.16666666666666) internal successors, (1177), 6 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:59,359 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:59,359 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:27:59,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:27:59,360 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:27:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1679495531, now seen corresponding path program 1 times [2022-11-16 11:27:59,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:59,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134719353] [2022-11-16 11:27:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:00,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:00,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134719353] [2022-11-16 11:28:00,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134719353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:00,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:00,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:00,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204247572] [2022-11-16 11:28:00,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:00,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:00,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:00,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:00,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:00,431 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 313 [2022-11-16 11:28:00,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 328 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:00,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:00,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 313 [2022-11-16 11:28:00,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:02,005 INFO L130 PetriNetUnfolder]: 1425/4583 cut-off events. [2022-11-16 11:28:02,005 INFO L131 PetriNetUnfolder]: For 1048/1048 co-relation queries the response was YES. [2022-11-16 11:28:02,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8715 conditions, 4583 events. 1425/4583 cut-off events. For 1048/1048 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 33008 event pairs, 936 based on Foata normal form. 0/4136 useless extension candidates. Maximal degree in co-relation 8629. Up to 2730 conditions per place. [2022-11-16 11:28:02,038 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 237 selfloop transitions, 5 changer transitions 0/419 dead transitions. [2022-11-16 11:28:02,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 419 transitions, 1552 flow [2022-11-16 11:28:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:28:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:28:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1334 transitions. [2022-11-16 11:28:02,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7103301384451545 [2022-11-16 11:28:02,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1334 transitions. [2022-11-16 11:28:02,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1334 transitions. [2022-11-16 11:28:02,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:02,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1334 transitions. [2022-11-16 11:28:02,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,051 INFO L175 Difference]: Start difference. First operand has 306 places, 328 transitions, 846 flow. Second operand 6 states and 1334 transitions. [2022-11-16 11:28:02,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 419 transitions, 1552 flow [2022-11-16 11:28:02,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 419 transitions, 1552 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:28:02,066 INFO L231 Difference]: Finished difference. Result has 310 places, 327 transitions, 854 flow [2022-11-16 11:28:02,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=310, PETRI_TRANSITIONS=327} [2022-11-16 11:28:02,068 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -6 predicate places. [2022-11-16 11:28:02,068 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 327 transitions, 854 flow [2022-11-16 11:28:02,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:02,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:02,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:28:02,070 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2143879696, now seen corresponding path program 1 times [2022-11-16 11:28:02,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:02,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592353793] [2022-11-16 11:28:02,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:02,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:02,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:02,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592353793] [2022-11-16 11:28:02,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592353793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:02,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:02,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:02,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554109972] [2022-11-16 11:28:02,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:02,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:02,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:02,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:02,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 313 [2022-11-16 11:28:02,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 327 transitions, 854 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:02,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:02,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 313 [2022-11-16 11:28:02,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:04,663 INFO L130 PetriNetUnfolder]: 1814/5691 cut-off events. [2022-11-16 11:28:04,663 INFO L131 PetriNetUnfolder]: For 1339/1343 co-relation queries the response was YES. [2022-11-16 11:28:04,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10926 conditions, 5691 events. 1814/5691 cut-off events. For 1339/1343 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 43965 event pairs, 351 based on Foata normal form. 0/5243 useless extension candidates. Maximal degree in co-relation 10836. Up to 2174 conditions per place. [2022-11-16 11:28:04,698 INFO L137 encePairwiseOnDemand]: 292/313 looper letters, 265 selfloop transitions, 71 changer transitions 0/506 dead transitions. [2022-11-16 11:28:04,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 506 transitions, 2140 flow [2022-11-16 11:28:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:28:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:28:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2022-11-16 11:28:04,702 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7236421725239617 [2022-11-16 11:28:04,702 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1359 transitions. [2022-11-16 11:28:04,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1359 transitions. [2022-11-16 11:28:04,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:04,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1359 transitions. [2022-11-16 11:28:04,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.5) internal successors, (1359), 6 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:04,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:04,712 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:04,712 INFO L175 Difference]: Start difference. First operand has 310 places, 327 transitions, 854 flow. Second operand 6 states and 1359 transitions. [2022-11-16 11:28:04,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 506 transitions, 2140 flow [2022-11-16 11:28:04,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 506 transitions, 2090 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:28:04,723 INFO L231 Difference]: Finished difference. Result has 315 places, 396 transitions, 1502 flow [2022-11-16 11:28:04,724 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1502, PETRI_PLACES=315, PETRI_TRANSITIONS=396} [2022-11-16 11:28:04,725 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, -1 predicate places. [2022-11-16 11:28:04,725 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 396 transitions, 1502 flow [2022-11-16 11:28:04,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:04,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:04,726 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:04,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:28:04,726 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:04,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash -162897296, now seen corresponding path program 1 times [2022-11-16 11:28:04,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:04,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822008816] [2022-11-16 11:28:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:04,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:05,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:05,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822008816] [2022-11-16 11:28:05,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822008816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:05,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:05,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:05,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652901766] [2022-11-16 11:28:05,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:05,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:05,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:05,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:05,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-16 11:28:05,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 396 transitions, 1502 flow. Second operand has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:05,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:05,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-16 11:28:05,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:07,365 INFO L130 PetriNetUnfolder]: 1933/6154 cut-off events. [2022-11-16 11:28:07,365 INFO L131 PetriNetUnfolder]: For 3616/3663 co-relation queries the response was YES. [2022-11-16 11:28:07,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14088 conditions, 6154 events. 1933/6154 cut-off events. For 3616/3663 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 48115 event pairs, 1000 based on Foata normal form. 0/5741 useless extension candidates. Maximal degree in co-relation 13997. Up to 3840 conditions per place. [2022-11-16 11:28:07,412 INFO L137 encePairwiseOnDemand]: 290/313 looper letters, 250 selfloop transitions, 89 changer transitions 0/515 dead transitions. [2022-11-16 11:28:07,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 515 transitions, 2700 flow [2022-11-16 11:28:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:28:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:28:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1333 transitions. [2022-11-16 11:28:07,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7097976570820022 [2022-11-16 11:28:07,416 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1333 transitions. [2022-11-16 11:28:07,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1333 transitions. [2022-11-16 11:28:07,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:07,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1333 transitions. [2022-11-16 11:28:07,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.16666666666666) internal successors, (1333), 6 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,424 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,425 INFO L175 Difference]: Start difference. First operand has 315 places, 396 transitions, 1502 flow. Second operand 6 states and 1333 transitions. [2022-11-16 11:28:07,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 515 transitions, 2700 flow [2022-11-16 11:28:07,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 515 transitions, 2700 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:28:07,449 INFO L231 Difference]: Finished difference. Result has 325 places, 480 transitions, 2304 flow [2022-11-16 11:28:07,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2304, PETRI_PLACES=325, PETRI_TRANSITIONS=480} [2022-11-16 11:28:07,451 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 9 predicate places. [2022-11-16 11:28:07,452 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 480 transitions, 2304 flow [2022-11-16 11:28:07,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:07,453 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:07,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:28:07,453 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:07,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:07,454 INFO L85 PathProgramCache]: Analyzing trace with hash -747633893, now seen corresponding path program 1 times [2022-11-16 11:28:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:07,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833899778] [2022-11-16 11:28:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:07,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:07,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:07,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:07,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833899778] [2022-11-16 11:28:07,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833899778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:07,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:07,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:28:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476370689] [2022-11-16 11:28:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:07,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:28:07,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:28:07,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:28:07,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 313 [2022-11-16 11:28:07,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 480 transitions, 2304 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:07,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:07,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 313 [2022-11-16 11:28:07,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:08,162 INFO L130 PetriNetUnfolder]: 289/1946 cut-off events. [2022-11-16 11:28:08,163 INFO L131 PetriNetUnfolder]: For 992/1053 co-relation queries the response was YES. [2022-11-16 11:28:08,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 1946 events. 289/1946 cut-off events. For 992/1053 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13071 event pairs, 25 based on Foata normal form. 4/1864 useless extension candidates. Maximal degree in co-relation 3874. Up to 272 conditions per place. [2022-11-16 11:28:08,178 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 15 selfloop transitions, 6 changer transitions 0/420 dead transitions. [2022-11-16 11:28:08,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 420 transitions, 1782 flow [2022-11-16 11:28:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:28:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:28:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2022-11-16 11:28:08,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9765708200212992 [2022-11-16 11:28:08,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2022-11-16 11:28:08,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2022-11-16 11:28:08,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:08,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2022-11-16 11:28:08,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:08,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:08,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:08,188 INFO L175 Difference]: Start difference. First operand has 325 places, 480 transitions, 2304 flow. Second operand 3 states and 917 transitions. [2022-11-16 11:28:08,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 420 transitions, 1782 flow [2022-11-16 11:28:08,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 420 transitions, 1694 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-16 11:28:08,210 INFO L231 Difference]: Finished difference. Result has 328 places, 418 transitions, 1674 flow [2022-11-16 11:28:08,211 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1674, PETRI_PLACES=328, PETRI_TRANSITIONS=418} [2022-11-16 11:28:08,212 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 12 predicate places. [2022-11-16 11:28:08,212 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 418 transitions, 1674 flow [2022-11-16 11:28:08,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:08,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:08,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:08,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:28:08,214 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash 324013885, now seen corresponding path program 1 times [2022-11-16 11:28:08,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:08,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960613902] [2022-11-16 11:28:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:08,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:09,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:09,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960613902] [2022-11-16 11:28:09,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960613902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:09,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:09,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:09,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707645427] [2022-11-16 11:28:09,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:09,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:09,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:09,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:09,133 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-16 11:28:09,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 418 transitions, 1674 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:09,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:09,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-16 11:28:09,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:11,329 INFO L130 PetriNetUnfolder]: 1230/4325 cut-off events. [2022-11-16 11:28:11,330 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-16 11:28:11,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 4325 events. 1230/4325 cut-off events. For 3311/3340 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33101 event pairs, 209 based on Foata normal form. 0/4151 useless extension candidates. Maximal degree in co-relation 10803. Up to 1169 conditions per place. [2022-11-16 11:28:11,378 INFO L137 encePairwiseOnDemand]: 294/313 looper letters, 386 selfloop transitions, 124 changer transitions 4/694 dead transitions. [2022-11-16 11:28:11,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 694 transitions, 4268 flow [2022-11-16 11:28:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:28:11,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:28:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2022-11-16 11:28:11,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7566560170394037 [2022-11-16 11:28:11,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2022-11-16 11:28:11,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2022-11-16 11:28:11,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:11,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2022-11-16 11:28:11,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,396 INFO L175 Difference]: Start difference. First operand has 328 places, 418 transitions, 1674 flow. Second operand 6 states and 1421 transitions. [2022-11-16 11:28:11,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 694 transitions, 4268 flow [2022-11-16 11:28:11,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 694 transitions, 4262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:28:11,435 INFO L231 Difference]: Finished difference. Result has 336 places, 520 transitions, 3050 flow [2022-11-16 11:28:11,436 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3050, PETRI_PLACES=336, PETRI_TRANSITIONS=520} [2022-11-16 11:28:11,437 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 20 predicate places. [2022-11-16 11:28:11,437 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 520 transitions, 3050 flow [2022-11-16 11:28:11,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:11,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:11,438 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:11,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:28:11,439 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash 632797486, now seen corresponding path program 1 times [2022-11-16 11:28:11,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519559938] [2022-11-16 11:28:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:11,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:12,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:12,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519559938] [2022-11-16 11:28:12,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519559938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:12,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:12,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:28:12,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859029522] [2022-11-16 11:28:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:12,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:28:12,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:28:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:28:12,388 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 313 [2022-11-16 11:28:12,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 520 transitions, 3050 flow. Second operand has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:12,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:12,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 313 [2022-11-16 11:28:12,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:13,885 INFO L130 PetriNetUnfolder]: 1281/4389 cut-off events. [2022-11-16 11:28:13,886 INFO L131 PetriNetUnfolder]: For 6064/6104 co-relation queries the response was YES. [2022-11-16 11:28:13,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12677 conditions, 4389 events. 1281/4389 cut-off events. For 6064/6104 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33357 event pairs, 469 based on Foata normal form. 0/4261 useless extension candidates. Maximal degree in co-relation 12575. Up to 2356 conditions per place. [2022-11-16 11:28:13,917 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 420 selfloop transitions, 17 changer transitions 0/619 dead transitions. [2022-11-16 11:28:13,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 619 transitions, 4514 flow [2022-11-16 11:28:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:28:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:28:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1324 transitions. [2022-11-16 11:28:13,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7050053248136315 [2022-11-16 11:28:13,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1324 transitions. [2022-11-16 11:28:13,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1324 transitions. [2022-11-16 11:28:13,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:13,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1324 transitions. [2022-11-16 11:28:13,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:13,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:13,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:13,931 INFO L175 Difference]: Start difference. First operand has 336 places, 520 transitions, 3050 flow. Second operand 6 states and 1324 transitions. [2022-11-16 11:28:13,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 619 transitions, 4514 flow [2022-11-16 11:28:13,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 619 transitions, 4496 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:28:13,969 INFO L231 Difference]: Finished difference. Result has 340 places, 519 transitions, 3064 flow [2022-11-16 11:28:13,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3064, PETRI_PLACES=340, PETRI_TRANSITIONS=519} [2022-11-16 11:28:13,971 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 24 predicate places. [2022-11-16 11:28:13,971 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 519 transitions, 3064 flow [2022-11-16 11:28:13,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:13,971 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:13,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:13,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:28:13,972 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1012259179, now seen corresponding path program 1 times [2022-11-16 11:28:13,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:13,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680312005] [2022-11-16 11:28:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:13,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:17,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680312005] [2022-11-16 11:28:17,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680312005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:17,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:17,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:28:17,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437051429] [2022-11-16 11:28:17,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:17,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:28:17,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:28:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:28:17,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 313 [2022-11-16 11:28:17,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 519 transitions, 3064 flow. Second operand has 26 states, 26 states have (on average 135.03846153846155) internal successors, (3511), 26 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:17,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:17,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 313 [2022-11-16 11:28:17,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:21,344 INFO L130 PetriNetUnfolder]: 1856/5752 cut-off events. [2022-11-16 11:28:21,344 INFO L131 PetriNetUnfolder]: For 6962/6964 co-relation queries the response was YES. [2022-11-16 11:28:21,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16650 conditions, 5752 events. 1856/5752 cut-off events. For 6962/6964 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 45125 event pairs, 613 based on Foata normal form. 15/5613 useless extension candidates. Maximal degree in co-relation 16526. Up to 2303 conditions per place. [2022-11-16 11:28:21,402 INFO L137 encePairwiseOnDemand]: 275/313 looper letters, 566 selfloop transitions, 135 changer transitions 1/824 dead transitions. [2022-11-16 11:28:21,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 824 transitions, 6198 flow [2022-11-16 11:28:21,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 11:28:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-16 11:28:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 6402 transitions. [2022-11-16 11:28:21,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4446450895957772 [2022-11-16 11:28:21,427 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 6402 transitions. [2022-11-16 11:28:21,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 6402 transitions. [2022-11-16 11:28:21,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:21,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 6402 transitions. [2022-11-16 11:28:21,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 139.17391304347825) internal successors, (6402), 46 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 313.0) internal successors, (14711), 47 states have internal predecessors, (14711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,479 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 313.0) internal successors, (14711), 47 states have internal predecessors, (14711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,480 INFO L175 Difference]: Start difference. First operand has 340 places, 519 transitions, 3064 flow. Second operand 46 states and 6402 transitions. [2022-11-16 11:28:21,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 824 transitions, 6198 flow [2022-11-16 11:28:21,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 824 transitions, 6140 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:28:21,540 INFO L231 Difference]: Finished difference. Result has 395 places, 580 transitions, 3896 flow [2022-11-16 11:28:21,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=3896, PETRI_PLACES=395, PETRI_TRANSITIONS=580} [2022-11-16 11:28:21,541 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 79 predicate places. [2022-11-16 11:28:21,542 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 580 transitions, 3896 flow [2022-11-16 11:28:21,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 135.03846153846155) internal successors, (3511), 26 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:21,543 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:21,544 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:21,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:28:21,544 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:21,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1176986028, now seen corresponding path program 1 times [2022-11-16 11:28:21,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:21,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777392427] [2022-11-16 11:28:21,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:24,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777392427] [2022-11-16 11:28:24,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777392427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:24,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:24,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-16 11:28:24,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948234907] [2022-11-16 11:28:24,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:24,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 11:28:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 11:28:24,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:28:24,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:28:24,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 580 transitions, 3896 flow. Second operand has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:24,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:24,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:28:24,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:31,011 INFO L130 PetriNetUnfolder]: 2236/6905 cut-off events. [2022-11-16 11:28:31,011 INFO L131 PetriNetUnfolder]: For 12944/12954 co-relation queries the response was YES. [2022-11-16 11:28:31,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22202 conditions, 6905 events. 2236/6905 cut-off events. For 12944/12954 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 57081 event pairs, 473 based on Foata normal form. 20/6765 useless extension candidates. Maximal degree in co-relation 22056. Up to 1556 conditions per place. [2022-11-16 11:28:31,085 INFO L137 encePairwiseOnDemand]: 270/313 looper letters, 770 selfloop transitions, 187 changer transitions 4/1085 dead transitions. [2022-11-16 11:28:31,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1085 transitions, 9184 flow [2022-11-16 11:28:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-16 11:28:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-11-16 11:28:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 5817 transitions. [2022-11-16 11:28:31,098 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46461661341853033 [2022-11-16 11:28:31,098 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 5817 transitions. [2022-11-16 11:28:31,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 5817 transitions. [2022-11-16 11:28:31,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:31,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 5817 transitions. [2022-11-16 11:28:31,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 145.425) internal successors, (5817), 40 states have internal predecessors, (5817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 313.0) internal successors, (12833), 41 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,136 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 313.0) internal successors, (12833), 41 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,136 INFO L175 Difference]: Start difference. First operand has 395 places, 580 transitions, 3896 flow. Second operand 40 states and 5817 transitions. [2022-11-16 11:28:31,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1085 transitions, 9184 flow [2022-11-16 11:28:31,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1085 transitions, 9045 flow, removed 50 selfloop flow, removed 16 redundant places. [2022-11-16 11:28:31,278 INFO L231 Difference]: Finished difference. Result has 432 places, 682 transitions, 5586 flow [2022-11-16 11:28:31,279 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3804, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=5586, PETRI_PLACES=432, PETRI_TRANSITIONS=682} [2022-11-16 11:28:31,280 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 116 predicate places. [2022-11-16 11:28:31,280 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 682 transitions, 5586 flow [2022-11-16 11:28:31,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:31,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:31,282 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:31,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:28:31,283 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:31,284 INFO L85 PathProgramCache]: Analyzing trace with hash 586038356, now seen corresponding path program 2 times [2022-11-16 11:28:31,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:31,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049724797] [2022-11-16 11:28:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:31,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:34,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049724797] [2022-11-16 11:28:34,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049724797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:34,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:34,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:28:34,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351459094] [2022-11-16 11:28:34,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:34,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:28:34,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:34,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:28:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:28:34,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:28:34,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 682 transitions, 5586 flow. Second operand has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:34,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:34,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:28:34,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:41,106 INFO L130 PetriNetUnfolder]: 2337/7198 cut-off events. [2022-11-16 11:28:41,106 INFO L131 PetriNetUnfolder]: For 18923/18933 co-relation queries the response was YES. [2022-11-16 11:28:41,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24992 conditions, 7198 events. 2337/7198 cut-off events. For 18923/18933 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 59785 event pairs, 392 based on Foata normal form. 25/7072 useless extension candidates. Maximal degree in co-relation 24829. Up to 1381 conditions per place. [2022-11-16 11:28:41,198 INFO L137 encePairwiseOnDemand]: 274/313 looper letters, 709 selfloop transitions, 217 changer transitions 4/1054 dead transitions. [2022-11-16 11:28:41,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1054 transitions, 9818 flow [2022-11-16 11:28:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-16 11:28:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-16 11:28:41,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6694 transitions. [2022-11-16 11:28:41,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45503364829039494 [2022-11-16 11:28:41,213 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 6694 transitions. [2022-11-16 11:28:41,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 6694 transitions. [2022-11-16 11:28:41,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:41,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 6694 transitions. [2022-11-16 11:28:41,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 142.4255319148936) internal successors, (6694), 47 states have internal predecessors, (6694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:41,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 313.0) internal successors, (15024), 48 states have internal predecessors, (15024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:41,256 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 313.0) internal successors, (15024), 48 states have internal predecessors, (15024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:41,257 INFO L175 Difference]: Start difference. First operand has 432 places, 682 transitions, 5586 flow. Second operand 47 states and 6694 transitions. [2022-11-16 11:28:41,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1054 transitions, 9818 flow [2022-11-16 11:28:41,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1054 transitions, 9751 flow, removed 14 selfloop flow, removed 18 redundant places. [2022-11-16 11:28:41,523 INFO L231 Difference]: Finished difference. Result has 473 places, 738 transitions, 6726 flow [2022-11-16 11:28:41,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=5533, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=6726, PETRI_PLACES=473, PETRI_TRANSITIONS=738} [2022-11-16 11:28:41,525 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 157 predicate places. [2022-11-16 11:28:41,525 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 738 transitions, 6726 flow [2022-11-16 11:28:41,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:41,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:41,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:41,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:28:41,527 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:41,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:41,528 INFO L85 PathProgramCache]: Analyzing trace with hash 788979556, now seen corresponding path program 3 times [2022-11-16 11:28:41,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:41,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107997963] [2022-11-16 11:28:41,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:41,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:44,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:44,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107997963] [2022-11-16 11:28:44,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107997963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:44,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:44,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-16 11:28:44,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358774260] [2022-11-16 11:28:44,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 11:28:44,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:44,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 11:28:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:28:44,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:28:44,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 738 transitions, 6726 flow. Second operand has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:44,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:44,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:28:44,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:28:51,335 INFO L130 PetriNetUnfolder]: 2817/8500 cut-off events. [2022-11-16 11:28:51,335 INFO L131 PetriNetUnfolder]: For 29848/29860 co-relation queries the response was YES. [2022-11-16 11:28:51,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32330 conditions, 8500 events. 2817/8500 cut-off events. For 29848/29860 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 73484 event pairs, 542 based on Foata normal form. 27/8352 useless extension candidates. Maximal degree in co-relation 32150. Up to 1556 conditions per place. [2022-11-16 11:28:51,457 INFO L137 encePairwiseOnDemand]: 270/313 looper letters, 874 selfloop transitions, 253 changer transitions 4/1255 dead transitions. [2022-11-16 11:28:51,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1255 transitions, 12939 flow [2022-11-16 11:28:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:28:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-16 11:28:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6101 transitions. [2022-11-16 11:28:51,469 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46409554237030276 [2022-11-16 11:28:51,469 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6101 transitions. [2022-11-16 11:28:51,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6101 transitions. [2022-11-16 11:28:51,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:28:51,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6101 transitions. [2022-11-16 11:28:51,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 145.26190476190476) internal successors, (6101), 42 states have internal predecessors, (6101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:51,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:51,503 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:51,503 INFO L175 Difference]: Start difference. First operand has 473 places, 738 transitions, 6726 flow. Second operand 42 states and 6101 transitions. [2022-11-16 11:28:51,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1255 transitions, 12939 flow [2022-11-16 11:28:52,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1255 transitions, 12708 flow, removed 29 selfloop flow, removed 30 redundant places. [2022-11-16 11:28:52,239 INFO L231 Difference]: Finished difference. Result has 495 places, 827 transitions, 8776 flow [2022-11-16 11:28:52,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=6539, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8776, PETRI_PLACES=495, PETRI_TRANSITIONS=827} [2022-11-16 11:28:52,241 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 179 predicate places. [2022-11-16 11:28:52,241 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 827 transitions, 8776 flow [2022-11-16 11:28:52,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:52,242 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:28:52,242 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:28:52,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:28:52,243 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:28:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:28:52,243 INFO L85 PathProgramCache]: Analyzing trace with hash -968403808, now seen corresponding path program 4 times [2022-11-16 11:28:52,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:28:52,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273005462] [2022-11-16 11:28:52,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:28:52,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:28:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:28:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:28:54,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:28:54,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273005462] [2022-11-16 11:28:54,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273005462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:28:54,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:28:54,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:28:54,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212574960] [2022-11-16 11:28:54,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:28:54,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:28:54,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:28:54,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:28:54,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:28:54,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:28:54,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 827 transitions, 8776 flow. Second operand has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:28:54,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:28:54,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:28:54,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:02,115 INFO L130 PetriNetUnfolder]: 3322/9943 cut-off events. [2022-11-16 11:29:02,115 INFO L131 PetriNetUnfolder]: For 46585/46599 co-relation queries the response was YES. [2022-11-16 11:29:02,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40215 conditions, 9943 events. 3322/9943 cut-off events. For 46585/46599 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 89070 event pairs, 619 based on Foata normal form. 29/9783 useless extension candidates. Maximal degree in co-relation 40022. Up to 1726 conditions per place. [2022-11-16 11:29:02,257 INFO L137 encePairwiseOnDemand]: 271/313 looper letters, 940 selfloop transitions, 325 changer transitions 4/1393 dead transitions. [2022-11-16 11:29:02,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1393 transitions, 16209 flow [2022-11-16 11:29:02,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:29:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-16 11:29:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6122 transitions. [2022-11-16 11:29:02,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46569298645975965 [2022-11-16 11:29:02,270 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6122 transitions. [2022-11-16 11:29:02,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6122 transitions. [2022-11-16 11:29:02,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:02,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6122 transitions. [2022-11-16 11:29:02,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 145.76190476190476) internal successors, (6122), 42 states have internal predecessors, (6122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:02,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:02,305 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:02,305 INFO L175 Difference]: Start difference. First operand has 495 places, 827 transitions, 8776 flow. Second operand 42 states and 6122 transitions. [2022-11-16 11:29:02,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1393 transitions, 16209 flow [2022-11-16 11:29:02,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 1393 transitions, 16092 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-16 11:29:02,828 INFO L231 Difference]: Finished difference. Result has 530 places, 936 transitions, 11780 flow [2022-11-16 11:29:02,829 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=8685, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11780, PETRI_PLACES=530, PETRI_TRANSITIONS=936} [2022-11-16 11:29:02,829 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 214 predicate places. [2022-11-16 11:29:02,830 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 936 transitions, 11780 flow [2022-11-16 11:29:02,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:02,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:02,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:02,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:29:02,830 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:29:02,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash 22649096, now seen corresponding path program 5 times [2022-11-16 11:29:02,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:02,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987693620] [2022-11-16 11:29:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:04,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:04,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987693620] [2022-11-16 11:29:04,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987693620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:04,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:04,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-16 11:29:04,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572935941] [2022-11-16 11:29:04,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:04,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 11:29:04,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:04,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 11:29:04,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-16 11:29:04,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 313 [2022-11-16 11:29:04,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 936 transitions, 11780 flow. Second operand has 25 states, 25 states have (on average 138.16) internal successors, (3454), 25 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:04,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:04,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 313 [2022-11-16 11:29:04,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:12,694 INFO L130 PetriNetUnfolder]: 3743/11137 cut-off events. [2022-11-16 11:29:12,695 INFO L131 PetriNetUnfolder]: For 69282/69296 co-relation queries the response was YES. [2022-11-16 11:29:12,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48244 conditions, 11137 events. 3743/11137 cut-off events. For 69282/69296 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 102849 event pairs, 630 based on Foata normal form. 29/10963 useless extension candidates. Maximal degree in co-relation 48031. Up to 2502 conditions per place. [2022-11-16 11:29:12,857 INFO L137 encePairwiseOnDemand]: 273/313 looper letters, 916 selfloop transitions, 334 changer transitions 3/1379 dead transitions. [2022-11-16 11:29:12,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1379 transitions, 18487 flow [2022-11-16 11:29:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-16 11:29:12,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-16 11:29:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5399 transitions. [2022-11-16 11:29:12,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4661946291339263 [2022-11-16 11:29:12,866 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5399 transitions. [2022-11-16 11:29:12,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5399 transitions. [2022-11-16 11:29:12,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:12,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5399 transitions. [2022-11-16 11:29:12,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 145.9189189189189) internal successors, (5399), 37 states have internal predecessors, (5399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 313.0) internal successors, (11894), 38 states have internal predecessors, (11894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,888 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 313.0) internal successors, (11894), 38 states have internal predecessors, (11894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:12,889 INFO L175 Difference]: Start difference. First operand has 530 places, 936 transitions, 11780 flow. Second operand 37 states and 5399 transitions. [2022-11-16 11:29:12,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1379 transitions, 18487 flow [2022-11-16 11:29:13,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 1379 transitions, 18340 flow, removed 53 selfloop flow, removed 17 redundant places. [2022-11-16 11:29:13,587 INFO L231 Difference]: Finished difference. Result has 560 places, 1012 transitions, 14495 flow [2022-11-16 11:29:13,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=11643, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=14495, PETRI_PLACES=560, PETRI_TRANSITIONS=1012} [2022-11-16 11:29:13,589 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 244 predicate places. [2022-11-16 11:29:13,589 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 1012 transitions, 14495 flow [2022-11-16 11:29:13,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 138.16) internal successors, (3454), 25 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:13,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:13,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:13,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:29:13,591 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:29:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:13,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1616213939, now seen corresponding path program 1 times [2022-11-16 11:29:13,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:13,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753115522] [2022-11-16 11:29:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:13,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:14,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:14,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753115522] [2022-11-16 11:29:14,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753115522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:14,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:14,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:29:14,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133742742] [2022-11-16 11:29:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:14,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:29:14,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:29:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:29:14,142 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-16 11:29:14,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 1012 transitions, 14495 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:14,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:14,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-16 11:29:14,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:18,640 INFO L130 PetriNetUnfolder]: 3034/10100 cut-off events. [2022-11-16 11:29:18,640 INFO L131 PetriNetUnfolder]: For 74460/74716 co-relation queries the response was YES. [2022-11-16 11:29:18,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44772 conditions, 10100 events. 3034/10100 cut-off events. For 74460/74716 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 95805 event pairs, 1056 based on Foata normal form. 108/10061 useless extension candidates. Maximal degree in co-relation 44565. Up to 5822 conditions per place. [2022-11-16 11:29:18,813 INFO L137 encePairwiseOnDemand]: 290/313 looper letters, 635 selfloop transitions, 95 changer transitions 105/1146 dead transitions. [2022-11-16 11:29:18,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1146 transitions, 17327 flow [2022-11-16 11:29:18,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:29:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:29:18,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1331 transitions. [2022-11-16 11:29:18,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7087326943556975 [2022-11-16 11:29:18,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1331 transitions. [2022-11-16 11:29:18,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1331 transitions. [2022-11-16 11:29:18,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:18,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1331 transitions. [2022-11-16 11:29:18,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.83333333333334) internal successors, (1331), 6 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:18,822 INFO L175 Difference]: Start difference. First operand has 560 places, 1012 transitions, 14495 flow. Second operand 6 states and 1331 transitions. [2022-11-16 11:29:18,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 1146 transitions, 17327 flow [2022-11-16 11:29:19,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1146 transitions, 17191 flow, removed 44 selfloop flow, removed 19 redundant places. [2022-11-16 11:29:19,571 INFO L231 Difference]: Finished difference. Result has 551 places, 1008 transitions, 13983 flow [2022-11-16 11:29:19,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=14359, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1012, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13983, PETRI_PLACES=551, PETRI_TRANSITIONS=1008} [2022-11-16 11:29:19,573 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 235 predicate places. [2022-11-16 11:29:19,573 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 1008 transitions, 13983 flow [2022-11-16 11:29:19,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:19,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:19,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:19,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:29:19,574 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:29:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash -239434858, now seen corresponding path program 1 times [2022-11-16 11:29:19,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:19,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40580472] [2022-11-16 11:29:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:19,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:25,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:25,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:25,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40580472] [2022-11-16 11:29:25,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40580472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:25,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:25,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 11:29:25,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86245184] [2022-11-16 11:29:25,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:25,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 11:29:25,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:25,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 11:29:25,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:29:25,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:29:25,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 1008 transitions, 13983 flow. Second operand has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:25,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:25,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:29:25,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:35,173 INFO L130 PetriNetUnfolder]: 3820/11326 cut-off events. [2022-11-16 11:29:35,173 INFO L131 PetriNetUnfolder]: For 93452/93463 co-relation queries the response was YES. [2022-11-16 11:29:35,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53508 conditions, 11326 events. 3820/11326 cut-off events. For 93452/93463 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 103581 event pairs, 910 based on Foata normal form. 10/11245 useless extension candidates. Maximal degree in co-relation 53281. Up to 2870 conditions per place. [2022-11-16 11:29:35,364 INFO L137 encePairwiseOnDemand]: 278/313 looper letters, 917 selfloop transitions, 172 changer transitions 42/1255 dead transitions. [2022-11-16 11:29:35,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1255 transitions, 18257 flow [2022-11-16 11:29:35,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-16 11:29:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-16 11:29:35,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5939 transitions. [2022-11-16 11:29:35,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45177240225163545 [2022-11-16 11:29:35,373 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5939 transitions. [2022-11-16 11:29:35,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5939 transitions. [2022-11-16 11:29:35,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:35,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5939 transitions. [2022-11-16 11:29:35,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 141.4047619047619) internal successors, (5939), 42 states have internal predecessors, (5939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:35,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:35,397 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:35,397 INFO L175 Difference]: Start difference. First operand has 551 places, 1008 transitions, 13983 flow. Second operand 42 states and 5939 transitions. [2022-11-16 11:29:35,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1255 transitions, 18257 flow [2022-11-16 11:29:36,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 1255 transitions, 17875 flow, removed 123 selfloop flow, removed 11 redundant places. [2022-11-16 11:29:36,249 INFO L231 Difference]: Finished difference. Result has 559 places, 1017 transitions, 14251 flow [2022-11-16 11:29:36,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=13607, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=14251, PETRI_PLACES=559, PETRI_TRANSITIONS=1017} [2022-11-16 11:29:36,251 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 243 predicate places. [2022-11-16 11:29:36,251 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 1017 transitions, 14251 flow [2022-11-16 11:29:36,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:36,253 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:36,254 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:36,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:29:36,254 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:29:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1799603930, now seen corresponding path program 2 times [2022-11-16 11:29:36,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:36,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188097240] [2022-11-16 11:29:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:42,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:42,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188097240] [2022-11-16 11:29:42,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188097240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:42,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:42,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 11:29:42,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744956322] [2022-11-16 11:29:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:42,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-16 11:29:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-16 11:29:42,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-11-16 11:29:42,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:29:42,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 1017 transitions, 14251 flow. Second operand has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:42,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:42,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:29:42,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:29:52,576 INFO L130 PetriNetUnfolder]: 4572/13311 cut-off events. [2022-11-16 11:29:52,577 INFO L131 PetriNetUnfolder]: For 116732/116743 co-relation queries the response was YES. [2022-11-16 11:29:52,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63835 conditions, 13311 events. 4572/13311 cut-off events. For 116732/116743 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 127897 event pairs, 1165 based on Foata normal form. 10/13149 useless extension candidates. Maximal degree in co-relation 63609. Up to 3874 conditions per place. [2022-11-16 11:29:52,969 INFO L137 encePairwiseOnDemand]: 277/313 looper letters, 1117 selfloop transitions, 265 changer transitions 43/1549 dead transitions. [2022-11-16 11:29:52,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1549 transitions, 22646 flow [2022-11-16 11:29:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-16 11:29:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-16 11:29:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 6329 transitions. [2022-11-16 11:29:52,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4595556200987511 [2022-11-16 11:29:52,982 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 6329 transitions. [2022-11-16 11:29:52,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 6329 transitions. [2022-11-16 11:29:52,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:29:52,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 6329 transitions. [2022-11-16 11:29:52,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 143.8409090909091) internal successors, (6329), 44 states have internal predecessors, (6329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:53,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 313.0) internal successors, (14085), 45 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:53,021 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 313.0) internal successors, (14085), 45 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:53,021 INFO L175 Difference]: Start difference. First operand has 559 places, 1017 transitions, 14251 flow. Second operand 44 states and 6329 transitions. [2022-11-16 11:29:53,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1549 transitions, 22646 flow [2022-11-16 11:29:54,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 1549 transitions, 22281 flow, removed 22 selfloop flow, removed 37 redundant places. [2022-11-16 11:29:54,150 INFO L231 Difference]: Finished difference. Result has 569 places, 1102 transitions, 16886 flow [2022-11-16 11:29:54,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=13925, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=16886, PETRI_PLACES=569, PETRI_TRANSITIONS=1102} [2022-11-16 11:29:54,151 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 253 predicate places. [2022-11-16 11:29:54,152 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 1102 transitions, 16886 flow [2022-11-16 11:29:54,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:54,152 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:29:54,152 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:29:54,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:29:54,153 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:29:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:29:54,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1071928720, now seen corresponding path program 3 times [2022-11-16 11:29:54,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:29:54,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481183072] [2022-11-16 11:29:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:29:54,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:29:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:29:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:29:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:29:56,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481183072] [2022-11-16 11:29:56,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481183072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:29:56,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:29:56,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:29:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507924419] [2022-11-16 11:29:56,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:29:56,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:29:56,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:29:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:29:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:29:56,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:29:56,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1102 transitions, 16886 flow. Second operand has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:29:56,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:29:56,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:29:56,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:06,587 INFO L130 PetriNetUnfolder]: 4590/13510 cut-off events. [2022-11-16 11:30:06,587 INFO L131 PetriNetUnfolder]: For 126049/126054 co-relation queries the response was YES. [2022-11-16 11:30:06,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65509 conditions, 13510 events. 4590/13510 cut-off events. For 126049/126054 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 131051 event pairs, 863 based on Foata normal form. 10/13398 useless extension candidates. Maximal degree in co-relation 65278. Up to 3296 conditions per place. [2022-11-16 11:30:06,868 INFO L137 encePairwiseOnDemand]: 273/313 looper letters, 924 selfloop transitions, 371 changer transitions 24/1443 dead transitions. [2022-11-16 11:30:06,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 1443 transitions, 22294 flow [2022-11-16 11:30:06,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-16 11:30:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-16 11:30:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 6406 transitions. [2022-11-16 11:30:06,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4548100816471424 [2022-11-16 11:30:06,877 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 6406 transitions. [2022-11-16 11:30:06,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 6406 transitions. [2022-11-16 11:30:06,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:06,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 6406 transitions. [2022-11-16 11:30:06,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 142.35555555555555) internal successors, (6406), 45 states have internal predecessors, (6406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 313.0) internal successors, (14398), 46 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,908 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 313.0) internal successors, (14398), 46 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:06,909 INFO L175 Difference]: Start difference. First operand has 569 places, 1102 transitions, 16886 flow. Second operand 45 states and 6406 transitions. [2022-11-16 11:30:06,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 1443 transitions, 22294 flow [2022-11-16 11:30:08,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1443 transitions, 22164 flow, removed 21 selfloop flow, removed 25 redundant places. [2022-11-16 11:30:08,423 INFO L231 Difference]: Finished difference. Result has 591 places, 1114 transitions, 17929 flow [2022-11-16 11:30:08,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=16758, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=731, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=17929, PETRI_PLACES=591, PETRI_TRANSITIONS=1114} [2022-11-16 11:30:08,425 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 275 predicate places. [2022-11-16 11:30:08,425 INFO L495 AbstractCegarLoop]: Abstraction has has 591 places, 1114 transitions, 17929 flow [2022-11-16 11:30:08,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:08,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:08,426 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:08,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:30:08,427 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:30:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1031169134, now seen corresponding path program 4 times [2022-11-16 11:30:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:08,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200037341] [2022-11-16 11:30:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:10,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:10,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:10,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200037341] [2022-11-16 11:30:10,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200037341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:10,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:10,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 11:30:10,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038004266] [2022-11-16 11:30:10,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:10,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 11:30:10,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:10,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 11:30:10,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-11-16 11:30:10,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-16 11:30:10,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 1114 transitions, 17929 flow. Second operand has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:10,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:10,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-16 11:30:10,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:30:22,148 INFO L130 PetriNetUnfolder]: 4589/13447 cut-off events. [2022-11-16 11:30:22,149 INFO L131 PetriNetUnfolder]: For 140265/140270 co-relation queries the response was YES. [2022-11-16 11:30:22,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67176 conditions, 13447 events. 4589/13447 cut-off events. For 140265/140270 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 130429 event pairs, 740 based on Foata normal form. 10/13344 useless extension candidates. Maximal degree in co-relation 66940. Up to 3372 conditions per place. [2022-11-16 11:30:22,383 INFO L137 encePairwiseOnDemand]: 272/313 looper letters, 910 selfloop transitions, 438 changer transitions 34/1506 dead transitions. [2022-11-16 11:30:22,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 1506 transitions, 23439 flow [2022-11-16 11:30:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-16 11:30:22,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-11-16 11:30:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 7425 transitions. [2022-11-16 11:30:22,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4561931678545097 [2022-11-16 11:30:22,395 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 7425 transitions. [2022-11-16 11:30:22,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 7425 transitions. [2022-11-16 11:30:22,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:30:22,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 7425 transitions. [2022-11-16 11:30:22,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 142.78846153846155) internal successors, (7425), 52 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 313.0) internal successors, (16589), 53 states have internal predecessors, (16589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,432 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 313.0) internal successors, (16589), 53 states have internal predecessors, (16589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,432 INFO L175 Difference]: Start difference. First operand has 591 places, 1114 transitions, 17929 flow. Second operand 52 states and 7425 transitions. [2022-11-16 11:30:22,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 1506 transitions, 23439 flow [2022-11-16 11:30:23,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1506 transitions, 22822 flow, removed 36 selfloop flow, removed 38 redundant places. [2022-11-16 11:30:23,943 INFO L231 Difference]: Finished difference. Result has 613 places, 1147 transitions, 18927 flow [2022-11-16 11:30:23,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=17331, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=18927, PETRI_PLACES=613, PETRI_TRANSITIONS=1147} [2022-11-16 11:30:23,946 INFO L288 CegarLoopForPetriNet]: 316 programPoint places, 297 predicate places. [2022-11-16 11:30:23,946 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 1147 transitions, 18927 flow [2022-11-16 11:30:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:30:23,947 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:23,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:30:23,948 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-16 11:30:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1074619348, now seen corresponding path program 1 times [2022-11-16 11:30:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:23,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599209298] [2022-11-16 11:30:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:26,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599209298] [2022-11-16 11:30:26,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599209298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:26,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:26,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-16 11:30:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630729875] [2022-11-16 11:30:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:26,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 11:30:26,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 11:30:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-11-16 11:30:26,675 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 313 [2022-11-16 11:30:26,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1147 transitions, 18927 flow. Second operand has 27 states, 27 states have (on average 136.0) internal successors, (3672), 27 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:26,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:30:26,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 313 [2022-11-16 11:30:26,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand