./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:14:38,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:14:38,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:14:38,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:14:38,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:14:38,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:14:38,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:14:38,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:14:38,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:14:38,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:14:38,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:14:38,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:14:38,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:14:38,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:14:38,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:14:38,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:14:38,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:14:38,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:14:38,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:14:38,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:14:38,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:14:38,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:14:38,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:14:38,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:14:38,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:14:38,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:14:38,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:14:38,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:14:38,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:14:38,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:14:38,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:14:38,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:14:38,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:14:38,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:14:38,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:14:38,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:14:38,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:14:38,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:14:38,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:14:38,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:14:38,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:14:38,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:14:38,165 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:14:38,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:14:38,166 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:14:38,166 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:14:38,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:14:38,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:14:38,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:14:38,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:14:38,168 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:14:38,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:14:38,170 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:14:38,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:14:38,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:14:38,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:14:38,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:14:38,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:14:38,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:14:38,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:14:38,171 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:14:38,171 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:14:38,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:14:38,172 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:14:38,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:14:38,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:14:38,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:14:38,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:14:38,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:14:38,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:14:38,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:14:38,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:14:38,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:14:38,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:14:38,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:14:38,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:14:38,174 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:14:38,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:14:38,175 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:14:38,175 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:14:38,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:14:38,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:14:38,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:14:38,546 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:14:38,546 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:14:38,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2023-08-29 19:14:39,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:14:40,016 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:14:40,017 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c [2023-08-29 19:14:40,025 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a926da0/58c05bfba0574ff789ccfe73c927ce6e/FLAGa21592207 [2023-08-29 19:14:40,043 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a926da0/58c05bfba0574ff789ccfe73c927ce6e [2023-08-29 19:14:40,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:14:40,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:14:40,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:14:40,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:14:40,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:14:40,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7f8ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40, skipping insertion in model container [2023-08-29 19:14:40,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:14:40,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:14:40,235 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2815,2828] [2023-08-29 19:14:40,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:14:40,253 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:14:40,311 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-min.wvr.c[2815,2828] [2023-08-29 19:14:40,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:14:40,341 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:14:40,344 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:14:40,350 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:14:40,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40 WrapperNode [2023-08-29 19:14:40,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:14:40,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:14:40,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:14:40,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:14:40,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,423 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 375 [2023-08-29 19:14:40,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:14:40,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:14:40,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:14:40,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:14:40,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:14:40,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:14:40,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:14:40,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:14:40,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (1/1) ... [2023-08-29 19:14:40,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:14:40,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:14:40,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 19:14:40,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 19:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:14:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:14:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:14:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:14:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:14:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:14:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:14:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:14:40,586 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:14:40,714 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:14:40,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:14:41,525 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:14:41,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:14:41,682 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 19:14:41,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:14:41 BoogieIcfgContainer [2023-08-29 19:14:41,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:14:41,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:14:41,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:14:41,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:14:41,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:14:40" (1/3) ... [2023-08-29 19:14:41,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f235b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:14:41, skipping insertion in model container [2023-08-29 19:14:41,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:14:40" (2/3) ... [2023-08-29 19:14:41,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f235b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:14:41, skipping insertion in model container [2023-08-29 19:14:41,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:14:41" (3/3) ... [2023-08-29 19:14:41,693 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2023-08-29 19:14:41,700 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:14:41,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:14:41,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-08-29 19:14:41,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:14:41,830 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 19:14:41,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 19:14:42,086 INFO L130 PetriNetUnfolder]: 27/494 cut-off events. [2023-08-29 19:14:42,086 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:14:42,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 494 events. 27/494 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 628 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 19:14:42,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 480 places, 497 transitions, 1018 flow [2023-08-29 19:14:42,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:42,110 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:14:42,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:42,131 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:42,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 456 transitions, 930 flow [2023-08-29 19:14:42,205 INFO L130 PetriNetUnfolder]: 24/456 cut-off events. [2023-08-29 19:14:42,206 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:14:42,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 456 events. 24/456 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 621 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 399. Up to 3 conditions per place. [2023-08-29 19:14:42,217 INFO L119 LiptonReduction]: Number of co-enabled transitions 13362 [2023-08-29 19:15:07,171 INFO L134 LiptonReduction]: Checked pairs total: 104366 [2023-08-29 19:15:07,172 INFO L136 LiptonReduction]: Total number of compositions: 452 [2023-08-29 19:15:07,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:15:07,190 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;@58f516f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:15:07,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2023-08-29 19:15:07,192 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:15:07,192 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:15:07,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:07,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:15:07,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:07,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:07,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2023-08-29 19:15:07,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:07,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847885946] [2023-08-29 19:15:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:07,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:07,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847885946] [2023-08-29 19:15:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847885946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:07,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:07,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:15:07,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709891270] [2023-08-29 19:15:07,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:07,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:15:07,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:15:07,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:15:07,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 949 [2023-08-29 19:15:07,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 143 transitions, 304 flow. Second operand has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:07,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:07,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 949 [2023-08-29 19:15:07,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:07,912 INFO L130 PetriNetUnfolder]: 1464/3602 cut-off events. [2023-08-29 19:15:07,913 INFO L131 PetriNetUnfolder]: For 93/93 co-relation queries the response was YES. [2023-08-29 19:15:07,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 3602 events. 1464/3602 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 29406 event pairs, 753 based on Foata normal form. 531/3237 useless extension candidates. Maximal degree in co-relation 5158. Up to 1909 conditions per place. [2023-08-29 19:15:07,937 INFO L137 encePairwiseOnDemand]: 903/949 looper letters, 35 selfloop transitions, 0 changer transitions 1/97 dead transitions. [2023-08-29 19:15:07,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 284 flow [2023-08-29 19:15:07,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:15:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:15:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 992 transitions. [2023-08-29 19:15:07,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5226554267650158 [2023-08-29 19:15:07,957 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 992 transitions. [2023-08-29 19:15:07,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 992 transitions. [2023-08-29 19:15:07,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:07,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 992 transitions. [2023-08-29 19:15:07,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 496.0) internal successors, (992), 2 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:07,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:07,978 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 949.0) internal successors, (2847), 3 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:07,980 INFO L175 Difference]: Start difference. First operand has 141 places, 143 transitions, 304 flow. Second operand 2 states and 992 transitions. [2023-08-29 19:15:07,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 284 flow [2023-08-29 19:15:07,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 272 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 19:15:07,988 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 197 flow [2023-08-29 19:15:07,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=197, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2023-08-29 19:15:07,995 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -48 predicate places. [2023-08-29 19:15:07,997 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 197 flow [2023-08-29 19:15:07,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 455.5) internal successors, (911), 2 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:07,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:07,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:07,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:15:07,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:08,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:08,009 INFO L85 PathProgramCache]: Analyzing trace with hash -938995998, now seen corresponding path program 1 times [2023-08-29 19:15:08,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:08,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878910179] [2023-08-29 19:15:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:08,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878910179] [2023-08-29 19:15:08,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878910179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:08,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:08,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849918433] [2023-08-29 19:15:08,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:08,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:08,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 949 [2023-08-29 19:15:08,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:08,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:08,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 949 [2023-08-29 19:15:08,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:09,068 INFO L130 PetriNetUnfolder]: 2244/5346 cut-off events. [2023-08-29 19:15:09,069 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-29 19:15:09,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8513 conditions, 5346 events. 2244/5346 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 44393 event pairs, 1615 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8510. Up to 3097 conditions per place. [2023-08-29 19:15:09,102 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 38 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2023-08-29 19:15:09,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 93 transitions, 269 flow [2023-08-29 19:15:09,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1341 transitions. [2023-08-29 19:15:09,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102212855637515 [2023-08-29 19:15:09,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1341 transitions. [2023-08-29 19:15:09,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1341 transitions. [2023-08-29 19:15:09,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:09,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1341 transitions. [2023-08-29 19:15:09,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,127 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 197 flow. Second operand 3 states and 1341 transitions. [2023-08-29 19:15:09,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 93 transitions, 269 flow [2023-08-29 19:15:09,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:09,131 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 193 flow [2023-08-29 19:15:09,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2023-08-29 19:15:09,133 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -50 predicate places. [2023-08-29 19:15:09,133 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 193 flow [2023-08-29 19:15:09,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:09,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:09,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:15:09,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:09,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash -431632596, now seen corresponding path program 1 times [2023-08-29 19:15:09,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:09,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024331100] [2023-08-29 19:15:09,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:09,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:09,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024331100] [2023-08-29 19:15:09,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024331100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:09,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:09,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173407259] [2023-08-29 19:15:09,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:09,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:09,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:09,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:09,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 19:15:09,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 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) [2023-08-29 19:15:09,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:09,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 19:15:09,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:09,792 INFO L130 PetriNetUnfolder]: 1885/4239 cut-off events. [2023-08-29 19:15:09,792 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:09,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6769 conditions, 4239 events. 1885/4239 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 32940 event pairs, 1010 based on Foata normal form. 0/3294 useless extension candidates. Maximal degree in co-relation 6765. Up to 2453 conditions per place. [2023-08-29 19:15:09,818 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 37 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2023-08-29 19:15:09,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 91 transitions, 265 flow [2023-08-29 19:15:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 19:15:09,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 19:15:09,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 19:15:09,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 19:15:09,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:09,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 19:15:09,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:09,834 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 193 flow. Second operand 3 states and 1366 transitions. [2023-08-29 19:15:09,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 91 transitions, 265 flow [2023-08-29 19:15:09,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:09,838 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 190 flow [2023-08-29 19:15:09,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2023-08-29 19:15:09,840 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -51 predicate places. [2023-08-29 19:15:09,842 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 190 flow [2023-08-29 19:15:09,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 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) [2023-08-29 19:15:09,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:09,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:09,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:15:09,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:09,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash -96971984, now seen corresponding path program 1 times [2023-08-29 19:15:09,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:09,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272805846] [2023-08-29 19:15:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:09,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:09,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:15:09,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:09,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272805846] [2023-08-29 19:15:09,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272805846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:09,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:09,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:09,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736274771] [2023-08-29 19:15:09,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:09,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:09,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:09,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:10,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 949 [2023-08-29 19:15:10,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:10,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 949 [2023-08-29 19:15:10,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:10,569 INFO L130 PetriNetUnfolder]: 1464/3422 cut-off events. [2023-08-29 19:15:10,569 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:10,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5387 conditions, 3422 events. 1464/3422 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26774 event pairs, 753 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 5383. Up to 1908 conditions per place. [2023-08-29 19:15:10,590 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 34 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-29 19:15:10,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 264 flow [2023-08-29 19:15:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2023-08-29 19:15:10,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47980330172110996 [2023-08-29 19:15:10,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2023-08-29 19:15:10,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2023-08-29 19:15:10,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:10,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2023-08-29 19:15:10,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,611 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 190 flow. Second operand 3 states and 1366 transitions. [2023-08-29 19:15:10,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 264 flow [2023-08-29 19:15:10,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:10,613 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 201 flow [2023-08-29 19:15:10,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2023-08-29 19:15:10,615 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -49 predicate places. [2023-08-29 19:15:10,615 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 201 flow [2023-08-29 19:15:10,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:10,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:10,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:15:10,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:10,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash -41923511, now seen corresponding path program 1 times [2023-08-29 19:15:10,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:10,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193183626] [2023-08-29 19:15:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:10,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:15:10,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:10,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193183626] [2023-08-29 19:15:10,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193183626] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:10,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 19:15:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998356098] [2023-08-29 19:15:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:10,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 19:15:10,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:10,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 19:15:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 19:15:10,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 949 [2023-08-29 19:15:10,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:10,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:10,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 949 [2023-08-29 19:15:10,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:11,341 INFO L130 PetriNetUnfolder]: 1464/3424 cut-off events. [2023-08-29 19:15:11,341 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 19:15:11,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5397 conditions, 3424 events. 1464/3424 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26804 event pairs, 753 based on Foata normal form. 0/2618 useless extension candidates. Maximal degree in co-relation 5392. Up to 1907 conditions per place. [2023-08-29 19:15:11,360 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 32 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2023-08-29 19:15:11,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 281 flow [2023-08-29 19:15:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 19:15:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 19:15:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1804 transitions. [2023-08-29 19:15:11,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47523709167544786 [2023-08-29 19:15:11,365 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1804 transitions. [2023-08-29 19:15:11,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1804 transitions. [2023-08-29 19:15:11,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:11,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1804 transitions. [2023-08-29 19:15:11,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:11,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:11,378 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 949.0) internal successors, (4745), 5 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:11,379 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 201 flow. Second operand 4 states and 1804 transitions. [2023-08-29 19:15:11,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 281 flow [2023-08-29 19:15:11,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 94 transitions, 277 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:11,383 INFO L231 Difference]: Finished difference. Result has 95 places, 94 transitions, 225 flow [2023-08-29 19:15:11,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=95, PETRI_TRANSITIONS=94} [2023-08-29 19:15:11,386 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -46 predicate places. [2023-08-29 19:15:11,386 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 94 transitions, 225 flow [2023-08-29 19:15:11,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 443.75) internal successors, (1775), 4 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:11,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:11,387 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:11,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:15:11,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:11,388 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 45779351, now seen corresponding path program 1 times [2023-08-29 19:15:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:11,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793186839] [2023-08-29 19:15:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:11,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:15:11,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:11,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793186839] [2023-08-29 19:15:11,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793186839] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:11,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:11,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:11,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115254926] [2023-08-29 19:15:11,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:11,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:11,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:12,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 19:15:12,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:12,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:12,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 19:15:12,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:14,286 INFO L130 PetriNetUnfolder]: 7780/12675 cut-off events. [2023-08-29 19:15:14,286 INFO L131 PetriNetUnfolder]: For 20/32 co-relation queries the response was YES. [2023-08-29 19:15:14,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22527 conditions, 12675 events. 7780/12675 cut-off events. For 20/32 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 91995 event pairs, 1991 based on Foata normal form. 4/9566 useless extension candidates. Maximal degree in co-relation 22521. Up to 5477 conditions per place. [2023-08-29 19:15:14,367 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 115 selfloop transitions, 9 changer transitions 0/174 dead transitions. [2023-08-29 19:15:14,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 174 transitions, 635 flow [2023-08-29 19:15:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:14,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2726 transitions. [2023-08-29 19:15:14,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47874956094134175 [2023-08-29 19:15:14,374 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2726 transitions. [2023-08-29 19:15:14,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2726 transitions. [2023-08-29 19:15:14,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:14,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2726 transitions. [2023-08-29 19:15:14,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 454.3333333333333) internal successors, (2726), 6 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:14,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:14,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:14,392 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 225 flow. Second operand 6 states and 2726 transitions. [2023-08-29 19:15:14,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 174 transitions, 635 flow [2023-08-29 19:15:14,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 174 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:14,397 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 288 flow [2023-08-29 19:15:14,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-08-29 19:15:14,399 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -37 predicate places. [2023-08-29 19:15:14,399 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 288 flow [2023-08-29 19:15:14,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:14,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:14,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:14,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 19:15:14,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:14,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:14,402 INFO L85 PathProgramCache]: Analyzing trace with hash 40373737, now seen corresponding path program 1 times [2023-08-29 19:15:14,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:14,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48293593] [2023-08-29 19:15:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:14,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:14,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:14,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:14,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48293593] [2023-08-29 19:15:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48293593] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:15:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680665193] [2023-08-29 19:15:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:14,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:14,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:15:14,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:15:14,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 19:15:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:14,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:15:14,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:15:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:14,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:15:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:14,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680665193] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:15:14,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:15:14,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 19:15:14,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268596598] [2023-08-29 19:15:14,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:15:14,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 19:15:14,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:14,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 19:15:14,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:15:15,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:15:15,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:15,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:15,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:15:15,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:17,500 INFO L130 PetriNetUnfolder]: 5656/11573 cut-off events. [2023-08-29 19:15:17,500 INFO L131 PetriNetUnfolder]: For 1492/1613 co-relation queries the response was YES. [2023-08-29 19:15:17,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 11573 events. 5656/11573 cut-off events. For 1492/1613 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 100012 event pairs, 1979 based on Foata normal form. 29/9220 useless extension candidates. Maximal degree in co-relation 21294. Up to 3870 conditions per place. [2023-08-29 19:15:17,566 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 132 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2023-08-29 19:15:17,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 212 transitions, 963 flow [2023-08-29 19:15:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 19:15:17,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 19:15:17,576 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 19:15:17,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 19:15:17,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:17,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 19:15:17,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:17,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:17,602 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:17,602 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 288 flow. Second operand 10 states and 4441 transitions. [2023-08-29 19:15:17,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 212 transitions, 963 flow [2023-08-29 19:15:17,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 212 transitions, 963 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:17,623 INFO L231 Difference]: Finished difference. Result has 118 places, 117 transitions, 438 flow [2023-08-29 19:15:17,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=438, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2023-08-29 19:15:17,624 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2023-08-29 19:15:17,624 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 438 flow [2023-08-29 19:15:17,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 432.6666666666667) internal successors, (5192), 12 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:17,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:17,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:17,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 19:15:17,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:17,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:17,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash 833024825, now seen corresponding path program 1 times [2023-08-29 19:15:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:17,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408965134] [2023-08-29 19:15:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408965134] [2023-08-29 19:15:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408965134] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:15:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22094643] [2023-08-29 19:15:18,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:18,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:15:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:15:18,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:15:18,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 19:15:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:18,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:15:18,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:15:18,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:18,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:15:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 19:15:18,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22094643] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:15:18,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:15:18,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 19:15:18,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401314668] [2023-08-29 19:15:18,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:15:18,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 19:15:18,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 19:15:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:15:18,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:15:18,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 438 flow. Second operand has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:18,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:18,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:15:18,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:19,986 INFO L130 PetriNetUnfolder]: 3944/8623 cut-off events. [2023-08-29 19:15:19,986 INFO L131 PetriNetUnfolder]: For 1921/2120 co-relation queries the response was YES. [2023-08-29 19:15:20,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16142 conditions, 8623 events. 3944/8623 cut-off events. For 1921/2120 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 74969 event pairs, 1345 based on Foata normal form. 66/7168 useless extension candidates. Maximal degree in co-relation 16127. Up to 3219 conditions per place. [2023-08-29 19:15:20,063 INFO L137 encePairwiseOnDemand]: 939/949 looper letters, 112 selfloop transitions, 21 changer transitions 0/194 dead transitions. [2023-08-29 19:15:20,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 194 transitions, 909 flow [2023-08-29 19:15:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:15:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:15:20,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4441 transitions. [2023-08-29 19:15:20,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46796628029504744 [2023-08-29 19:15:20,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4441 transitions. [2023-08-29 19:15:20,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4441 transitions. [2023-08-29 19:15:20,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:20,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4441 transitions. [2023-08-29 19:15:20,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 444.1) internal successors, (4441), 10 states have internal predecessors, (4441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:20,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:20,101 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:20,101 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 438 flow. Second operand 10 states and 4441 transitions. [2023-08-29 19:15:20,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 194 transitions, 909 flow [2023-08-29 19:15:20,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 194 transitions, 887 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:20,117 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 481 flow [2023-08-29 19:15:20,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-29 19:15:20,118 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-08-29 19:15:20,118 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 481 flow [2023-08-29 19:15:20,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 433.1666666666667) internal successors, (5198), 12 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:20,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:20,120 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:20,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 19:15:20,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-29 19:15:20,327 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:20,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1189619696, now seen corresponding path program 2 times [2023-08-29 19:15:20,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:20,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44442554] [2023-08-29 19:15:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:20,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:20,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:20,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44442554] [2023-08-29 19:15:20,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44442554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:20,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:20,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:20,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313163480] [2023-08-29 19:15:20,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:20,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:20,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:20,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:21,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 19:15:21,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:21,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:21,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 19:15:21,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:23,809 INFO L130 PetriNetUnfolder]: 11834/19861 cut-off events. [2023-08-29 19:15:23,809 INFO L131 PetriNetUnfolder]: For 9325/9745 co-relation queries the response was YES. [2023-08-29 19:15:23,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46281 conditions, 19861 events. 11834/19861 cut-off events. For 9325/9745 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 154800 event pairs, 2224 based on Foata normal form. 52/16967 useless extension candidates. Maximal degree in co-relation 46263. Up to 8760 conditions per place. [2023-08-29 19:15:23,952 INFO L137 encePairwiseOnDemand]: 933/949 looper letters, 119 selfloop transitions, 33 changer transitions 0/203 dead transitions. [2023-08-29 19:15:23,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 203 transitions, 1059 flow [2023-08-29 19:15:23,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2677 transitions. [2023-08-29 19:15:23,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701440112399016 [2023-08-29 19:15:23,959 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2677 transitions. [2023-08-29 19:15:23,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2677 transitions. [2023-08-29 19:15:23,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:23,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2677 transitions. [2023-08-29 19:15:23,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.1666666666667) internal successors, (2677), 6 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:23,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:23,973 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:23,973 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 481 flow. Second operand 6 states and 2677 transitions. [2023-08-29 19:15:23,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 203 transitions, 1059 flow [2023-08-29 19:15:24,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 203 transitions, 1038 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 19:15:24,107 INFO L231 Difference]: Finished difference. Result has 136 places, 152 transitions, 766 flow [2023-08-29 19:15:24,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=136, PETRI_TRANSITIONS=152} [2023-08-29 19:15:24,108 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -5 predicate places. [2023-08-29 19:15:24,108 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 152 transitions, 766 flow [2023-08-29 19:15:24,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.5) internal successors, (2577), 6 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:24,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:24,109 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:24,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 19:15:24,109 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:24,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:24,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1776508583, now seen corresponding path program 1 times [2023-08-29 19:15:24,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:24,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361111294] [2023-08-29 19:15:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:24,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:24,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:24,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361111294] [2023-08-29 19:15:24,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361111294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:24,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:24,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:24,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287461998] [2023-08-29 19:15:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:24,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:24,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:24,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:24,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:24,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 949 [2023-08-29 19:15:24,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 152 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:24,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:24,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 949 [2023-08-29 19:15:24,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:26,805 INFO L130 PetriNetUnfolder]: 12047/23688 cut-off events. [2023-08-29 19:15:26,805 INFO L131 PetriNetUnfolder]: For 21973/23919 co-relation queries the response was YES. [2023-08-29 19:15:26,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60309 conditions, 23688 events. 12047/23688 cut-off events. For 21973/23919 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 216867 event pairs, 2210 based on Foata normal form. 102/20698 useless extension candidates. Maximal degree in co-relation 60286. Up to 9117 conditions per place. [2023-08-29 19:15:27,000 INFO L137 encePairwiseOnDemand]: 945/949 looper letters, 124 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2023-08-29 19:15:27,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 200 transitions, 1338 flow [2023-08-29 19:15:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:27,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1399 transitions. [2023-08-29 19:15:27,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4913944502985599 [2023-08-29 19:15:27,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1399 transitions. [2023-08-29 19:15:27,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1399 transitions. [2023-08-29 19:15:27,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:27,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1399 transitions. [2023-08-29 19:15:27,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 466.3333333333333) internal successors, (1399), 3 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:27,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:27,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:27,021 INFO L175 Difference]: Start difference. First operand has 136 places, 152 transitions, 766 flow. Second operand 3 states and 1399 transitions. [2023-08-29 19:15:27,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 200 transitions, 1338 flow [2023-08-29 19:15:27,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 200 transitions, 1338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:27,143 INFO L231 Difference]: Finished difference. Result has 138 places, 155 transitions, 810 flow [2023-08-29 19:15:27,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=138, PETRI_TRANSITIONS=155} [2023-08-29 19:15:27,144 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -3 predicate places. [2023-08-29 19:15:27,145 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 155 transitions, 810 flow [2023-08-29 19:15:27,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:27,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:27,145 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:27,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 19:15:27,146 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:27,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash -762799491, now seen corresponding path program 1 times [2023-08-29 19:15:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45938555] [2023-08-29 19:15:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:27,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:27,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45938555] [2023-08-29 19:15:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45938555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:27,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:27,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:15:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127979978] [2023-08-29 19:15:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:27,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:15:27,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:15:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:15:27,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 949 [2023-08-29 19:15:27,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 155 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:27,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:27,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 949 [2023-08-29 19:15:27,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:29,955 INFO L130 PetriNetUnfolder]: 13053/24004 cut-off events. [2023-08-29 19:15:29,956 INFO L131 PetriNetUnfolder]: For 27770/29935 co-relation queries the response was YES. [2023-08-29 19:15:30,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63973 conditions, 24004 events. 13053/24004 cut-off events. For 27770/29935 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 208030 event pairs, 5272 based on Foata normal form. 118/21391 useless extension candidates. Maximal degree in co-relation 63949. Up to 16252 conditions per place. [2023-08-29 19:15:30,217 INFO L137 encePairwiseOnDemand]: 946/949 looper letters, 85 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-08-29 19:15:30,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 980 flow [2023-08-29 19:15:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:15:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:15:30,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1365 transitions. [2023-08-29 19:15:30,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4794520547945205 [2023-08-29 19:15:30,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1365 transitions. [2023-08-29 19:15:30,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1365 transitions. [2023-08-29 19:15:30,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:30,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1365 transitions. [2023-08-29 19:15:30,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:30,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:30,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 949.0) internal successors, (3796), 4 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:30,229 INFO L175 Difference]: Start difference. First operand has 138 places, 155 transitions, 810 flow. Second operand 3 states and 1365 transitions. [2023-08-29 19:15:30,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 980 flow [2023-08-29 19:15:30,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 153 transitions, 974 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:15:30,365 INFO L231 Difference]: Finished difference. Result has 137 places, 153 transitions, 804 flow [2023-08-29 19:15:30,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=137, PETRI_TRANSITIONS=153} [2023-08-29 19:15:30,366 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -4 predicate places. [2023-08-29 19:15:30,366 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 153 transitions, 804 flow [2023-08-29 19:15:30,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:30,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:30,367 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:30,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 19:15:30,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:30,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:30,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1535335502, now seen corresponding path program 2 times [2023-08-29 19:15:30,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:30,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473261744] [2023-08-29 19:15:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:31,426 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:31,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473261744] [2023-08-29 19:15:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473261744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 19:15:31,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178175808] [2023-08-29 19:15:31,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:31,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:15:31,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:15:31,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-29 19:15:33,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 19:15:33,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 153 transitions, 804 flow. Second operand has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:33,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:33,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 19:15:33,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:37,117 INFO L130 PetriNetUnfolder]: 22244/33780 cut-off events. [2023-08-29 19:15:37,118 INFO L131 PetriNetUnfolder]: For 37833/42289 co-relation queries the response was YES. [2023-08-29 19:15:37,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96442 conditions, 33780 events. 22244/33780 cut-off events. For 37833/42289 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 246358 event pairs, 2231 based on Foata normal form. 1686/31596 useless extension candidates. Maximal degree in co-relation 96417. Up to 9892 conditions per place. [2023-08-29 19:15:37,417 INFO L137 encePairwiseOnDemand]: 943/949 looper letters, 218 selfloop transitions, 8 changer transitions 0/284 dead transitions. [2023-08-29 19:15:37,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 284 transitions, 1948 flow [2023-08-29 19:15:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 19:15:37,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 19:15:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3067 transitions. [2023-08-29 19:15:37,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616889959355713 [2023-08-29 19:15:37,423 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3067 transitions. [2023-08-29 19:15:37,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3067 transitions. [2023-08-29 19:15:37,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:37,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3067 transitions. [2023-08-29 19:15:37,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 438.14285714285717) internal successors, (3067), 7 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:37,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:37,438 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 949.0) internal successors, (7592), 8 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:37,438 INFO L175 Difference]: Start difference. First operand has 137 places, 153 transitions, 804 flow. Second operand 7 states and 3067 transitions. [2023-08-29 19:15:37,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 284 transitions, 1948 flow [2023-08-29 19:15:37,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 284 transitions, 1939 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 19:15:37,754 INFO L231 Difference]: Finished difference. Result has 140 places, 152 transitions, 807 flow [2023-08-29 19:15:37,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=807, PETRI_PLACES=140, PETRI_TRANSITIONS=152} [2023-08-29 19:15:37,754 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -1 predicate places. [2023-08-29 19:15:37,755 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 152 transitions, 807 flow [2023-08-29 19:15:37,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 423.8181818181818) internal successors, (4662), 11 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:37,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:37,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:37,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 19:15:37,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:37,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:37,756 INFO L85 PathProgramCache]: Analyzing trace with hash 879521503, now seen corresponding path program 1 times [2023-08-29 19:15:37,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:37,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661902620] [2023-08-29 19:15:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:37,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:15:38,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:38,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661902620] [2023-08-29 19:15:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661902620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:38,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:38,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:15:38,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919935007] [2023-08-29 19:15:38,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:38,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:15:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:38,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:15:38,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:15:38,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 949 [2023-08-29 19:15:38,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 152 transitions, 807 flow. Second operand has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:38,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:38,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 949 [2023-08-29 19:15:38,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:41,816 INFO L130 PetriNetUnfolder]: 13363/24568 cut-off events. [2023-08-29 19:15:41,816 INFO L131 PetriNetUnfolder]: For 27373/29559 co-relation queries the response was YES. [2023-08-29 19:15:41,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64879 conditions, 24568 events. 13363/24568 cut-off events. For 27373/29559 co-relation queries the response was YES. Maximal size of possible extension queue 758. Compared 213838 event pairs, 4730 based on Foata normal form. 158/21908 useless extension candidates. Maximal degree in co-relation 64855. Up to 15323 conditions per place. [2023-08-29 19:15:42,014 INFO L137 encePairwiseOnDemand]: 942/949 looper letters, 120 selfloop transitions, 13 changer transitions 0/194 dead transitions. [2023-08-29 19:15:42,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 194 transitions, 1230 flow [2023-08-29 19:15:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:15:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:15:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2680 transitions. [2023-08-29 19:15:42,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47067088162978576 [2023-08-29 19:15:42,020 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2680 transitions. [2023-08-29 19:15:42,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2680 transitions. [2023-08-29 19:15:42,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:42,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2680 transitions. [2023-08-29 19:15:42,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 446.6666666666667) internal successors, (2680), 6 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:42,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:42,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:42,031 INFO L175 Difference]: Start difference. First operand has 140 places, 152 transitions, 807 flow. Second operand 6 states and 2680 transitions. [2023-08-29 19:15:42,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 194 transitions, 1230 flow [2023-08-29 19:15:42,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 194 transitions, 1216 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:15:42,128 INFO L231 Difference]: Finished difference. Result has 145 places, 164 transitions, 919 flow [2023-08-29 19:15:42,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=145, PETRI_TRANSITIONS=164} [2023-08-29 19:15:42,129 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 4 predicate places. [2023-08-29 19:15:42,129 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 164 transitions, 919 flow [2023-08-29 19:15:42,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.5) internal successors, (2625), 6 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:42,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:42,130 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:42,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 19:15:42,130 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:42,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:42,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1444693734, now seen corresponding path program 1 times [2023-08-29 19:15:42,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:42,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192595519] [2023-08-29 19:15:42,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:42,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:43,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:43,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192595519] [2023-08-29 19:15:43,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192595519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:43,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:43,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 19:15:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958725125] [2023-08-29 19:15:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:43,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:15:43,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:15:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-29 19:15:45,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 949 [2023-08-29 19:15:45,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 164 transitions, 919 flow. Second operand has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:45,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:45,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 949 [2023-08-29 19:15:45,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:15:51,988 INFO L130 PetriNetUnfolder]: 32231/53088 cut-off events. [2023-08-29 19:15:51,988 INFO L131 PetriNetUnfolder]: For 63786/70155 co-relation queries the response was YES. [2023-08-29 19:15:52,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146750 conditions, 53088 events. 32231/53088 cut-off events. For 63786/70155 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 441690 event pairs, 4866 based on Foata normal form. 517/47913 useless extension candidates. Maximal degree in co-relation 146722. Up to 12418 conditions per place. [2023-08-29 19:15:52,710 INFO L137 encePairwiseOnDemand]: 936/949 looper letters, 282 selfloop transitions, 72 changer transitions 0/409 dead transitions. [2023-08-29 19:15:52,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 409 transitions, 3256 flow [2023-08-29 19:15:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 19:15:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 19:15:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4729 transitions. [2023-08-29 19:15:52,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45301274068397357 [2023-08-29 19:15:52,720 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4729 transitions. [2023-08-29 19:15:52,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4729 transitions. [2023-08-29 19:15:52,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:15:52,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4729 transitions. [2023-08-29 19:15:52,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 429.90909090909093) internal successors, (4729), 11 states have internal predecessors, (4729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:52,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 949.0) internal successors, (11388), 12 states have internal predecessors, (11388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:52,742 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 949.0) internal successors, (11388), 12 states have internal predecessors, (11388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:52,742 INFO L175 Difference]: Start difference. First operand has 145 places, 164 transitions, 919 flow. Second operand 11 states and 4729 transitions. [2023-08-29 19:15:52,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 409 transitions, 3256 flow [2023-08-29 19:15:52,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 409 transitions, 3200 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 19:15:52,892 INFO L231 Difference]: Finished difference. Result has 158 places, 217 transitions, 1652 flow [2023-08-29 19:15:52,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1652, PETRI_PLACES=158, PETRI_TRANSITIONS=217} [2023-08-29 19:15:52,892 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 17 predicate places. [2023-08-29 19:15:52,893 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 217 transitions, 1652 flow [2023-08-29 19:15:52,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 417.6363636363636) internal successors, (4594), 11 states have internal predecessors, (4594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:52,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:15:52,894 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:15:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 19:15:52,894 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:15:52,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:15:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash 652334830, now seen corresponding path program 2 times [2023-08-29 19:15:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:15:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761249597] [2023-08-29 19:15:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:15:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:15:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:15:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:15:54,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:15:54,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761249597] [2023-08-29 19:15:54,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761249597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:15:54,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:15:54,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 19:15:54,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382746867] [2023-08-29 19:15:54,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:15:54,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 19:15:54,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:15:54,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 19:15:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:15:55,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 949 [2023-08-29 19:15:55,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 217 transitions, 1652 flow. Second operand has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:15:55,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:15:55,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 949 [2023-08-29 19:15:55,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:16:03,517 INFO L130 PetriNetUnfolder]: 35182/63962 cut-off events. [2023-08-29 19:16:03,518 INFO L131 PetriNetUnfolder]: For 151393/160587 co-relation queries the response was YES. [2023-08-29 19:16:04,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189903 conditions, 63962 events. 35182/63962 cut-off events. For 151393/160587 co-relation queries the response was YES. Maximal size of possible extension queue 1780. Compared 611493 event pairs, 5324 based on Foata normal form. 400/57482 useless extension candidates. Maximal degree in co-relation 189870. Up to 29752 conditions per place. [2023-08-29 19:16:04,509 INFO L137 encePairwiseOnDemand]: 937/949 looper letters, 220 selfloop transitions, 124 changer transitions 0/407 dead transitions. [2023-08-29 19:16:04,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 407 transitions, 3851 flow [2023-08-29 19:16:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:16:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:16:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4325 transitions. [2023-08-29 19:16:04,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45574288724973655 [2023-08-29 19:16:04,516 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4325 transitions. [2023-08-29 19:16:04,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4325 transitions. [2023-08-29 19:16:04,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:16:04,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4325 transitions. [2023-08-29 19:16:04,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 432.5) internal successors, (4325), 10 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:04,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:04,531 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:04,531 INFO L175 Difference]: Start difference. First operand has 158 places, 217 transitions, 1652 flow. Second operand 10 states and 4325 transitions. [2023-08-29 19:16:04,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 407 transitions, 3851 flow [2023-08-29 19:16:04,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 407 transitions, 3835 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:16:05,003 INFO L231 Difference]: Finished difference. Result has 166 places, 296 transitions, 3065 flow [2023-08-29 19:16:05,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=1636, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3065, PETRI_PLACES=166, PETRI_TRANSITIONS=296} [2023-08-29 19:16:05,004 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 25 predicate places. [2023-08-29 19:16:05,004 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 296 transitions, 3065 flow [2023-08-29 19:16:05,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 421.77777777777777) internal successors, (3796), 9 states have internal predecessors, (3796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:05,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:16:05,005 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:16:05,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 19:16:05,005 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:16:05,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:16:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1546112379, now seen corresponding path program 1 times [2023-08-29 19:16:05,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:16:05,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651515664] [2023-08-29 19:16:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:16:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:16:05,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:16:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651515664] [2023-08-29 19:16:05,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651515664] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:16:05,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:16:05,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:16:05,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920484335] [2023-08-29 19:16:05,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:16:05,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:16:05,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:16:05,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:16:05,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:16:05,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 949 [2023-08-29 19:16:05,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 296 transitions, 3065 flow. Second operand has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:05,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:16:05,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 949 [2023-08-29 19:16:05,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:16:19,649 INFO L130 PetriNetUnfolder]: 62433/96027 cut-off events. [2023-08-29 19:16:19,649 INFO L131 PetriNetUnfolder]: For 355734/365399 co-relation queries the response was YES. [2023-08-29 19:16:20,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321300 conditions, 96027 events. 62433/96027 cut-off events. For 355734/365399 co-relation queries the response was YES. Maximal size of possible extension queue 2349. Compared 793816 event pairs, 14336 based on Foata normal form. 811/85729 useless extension candidates. Maximal degree in co-relation 321264. Up to 53489 conditions per place. [2023-08-29 19:16:20,799 INFO L137 encePairwiseOnDemand]: 935/949 looper letters, 272 selfloop transitions, 145 changer transitions 0/478 dead transitions. [2023-08-29 19:16:20,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 478 transitions, 5987 flow [2023-08-29 19:16:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:16:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:16:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2672 transitions. [2023-08-29 19:16:20,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46926589392342816 [2023-08-29 19:16:20,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2672 transitions. [2023-08-29 19:16:20,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2672 transitions. [2023-08-29 19:16:20,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:16:20,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2672 transitions. [2023-08-29 19:16:20,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 445.3333333333333) internal successors, (2672), 6 states have internal predecessors, (2672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:20,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:20,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:20,811 INFO L175 Difference]: Start difference. First operand has 166 places, 296 transitions, 3065 flow. Second operand 6 states and 2672 transitions. [2023-08-29 19:16:20,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 478 transitions, 5987 flow [2023-08-29 19:16:22,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 478 transitions, 5703 flow, removed 134 selfloop flow, removed 4 redundant places. [2023-08-29 19:16:22,503 INFO L231 Difference]: Finished difference. Result has 172 places, 430 transitions, 5409 flow [2023-08-29 19:16:22,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=2941, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5409, PETRI_PLACES=172, PETRI_TRANSITIONS=430} [2023-08-29 19:16:22,503 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2023-08-29 19:16:22,504 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 430 transitions, 5409 flow [2023-08-29 19:16:22,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 429.8333333333333) internal successors, (2579), 6 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:22,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:16:22,504 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:16:22,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 19:16:22,505 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:16:22,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:16:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 996210625, now seen corresponding path program 3 times [2023-08-29 19:16:22,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:16:22,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913883206] [2023-08-29 19:16:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:16:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:16:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:16:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:16:22,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:16:22,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913883206] [2023-08-29 19:16:22,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913883206] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:16:22,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054979460] [2023-08-29 19:16:22,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-29 19:16:22,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:16:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:16:22,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:16:22,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 19:16:23,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-29 19:16:23,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 19:16:23,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 67 conjunts are in the unsatisfiable core [2023-08-29 19:16:23,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:16:23,078 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-29 19:16:23,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 42 [2023-08-29 19:16:23,128 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-08-29 19:16:23,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-08-29 19:16:23,170 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-08-29 19:16:23,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-08-29 19:16:23,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-08-29 19:16:23,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-29 19:16:23,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 19:16:23,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-29 19:16:23,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 19:16:23,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-29 19:16:23,490 INFO L321 Elim1Store]: treesize reduction 83, result has 36.6 percent of original size [2023-08-29 19:16:23,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 116 [2023-08-29 19:16:23,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 94 [2023-08-29 19:16:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-29 19:16:25,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 19:16:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054979460] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:16:25,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 19:16:25,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 16 [2023-08-29 19:16:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822404979] [2023-08-29 19:16:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:16:25,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 19:16:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:16:25,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 19:16:25,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2023-08-29 19:16:26,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 949 [2023-08-29 19:16:26,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 430 transitions, 5409 flow. Second operand has 11 states, 11 states have (on average 329.90909090909093) internal successors, (3629), 11 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:16:26,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:16:26,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 949 [2023-08-29 19:16:26,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:17:01,668 INFO L130 PetriNetUnfolder]: 182963/242498 cut-off events. [2023-08-29 19:17:01,669 INFO L131 PetriNetUnfolder]: For 604957/606806 co-relation queries the response was YES. [2023-08-29 19:17:03,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819847 conditions, 242498 events. 182963/242498 cut-off events. For 604957/606806 co-relation queries the response was YES. Maximal size of possible extension queue 5610. Compared 1752198 event pairs, 32363 based on Foata normal form. 663/217598 useless extension candidates. Maximal degree in co-relation 819807. Up to 176901 conditions per place. [2023-08-29 19:17:04,843 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 488 selfloop transitions, 38 changer transitions 1/544 dead transitions. [2023-08-29 19:17:04,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 544 transitions, 7318 flow [2023-08-29 19:17:04,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 19:17:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 19:17:04,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3423 transitions. [2023-08-29 19:17:04,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.360695468914647 [2023-08-29 19:17:04,848 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3423 transitions. [2023-08-29 19:17:04,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3423 transitions. [2023-08-29 19:17:04,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:17:04,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3423 transitions. [2023-08-29 19:17:04,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 342.3) internal successors, (3423), 10 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:04,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:04,857 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 949.0) internal successors, (10439), 11 states have internal predecessors, (10439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:04,857 INFO L175 Difference]: Start difference. First operand has 172 places, 430 transitions, 5409 flow. Second operand 10 states and 3423 transitions. [2023-08-29 19:17:04,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 544 transitions, 7318 flow [2023-08-29 19:17:25,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 544 transitions, 7102 flow, removed 108 selfloop flow, removed 0 redundant places. [2023-08-29 19:17:25,137 INFO L231 Difference]: Finished difference. Result has 180 places, 428 transitions, 5259 flow [2023-08-29 19:17:25,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5185, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5259, PETRI_PLACES=180, PETRI_TRANSITIONS=428} [2023-08-29 19:17:25,138 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 39 predicate places. [2023-08-29 19:17:25,138 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 428 transitions, 5259 flow [2023-08-29 19:17:25,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 329.90909090909093) internal successors, (3629), 11 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:25,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:17:25,139 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:17:25,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-29 19:17:25,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:17:25,344 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:17:25,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:17:25,345 INFO L85 PathProgramCache]: Analyzing trace with hash -76855390, now seen corresponding path program 1 times [2023-08-29 19:17:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:17:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419066420] [2023-08-29 19:17:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:17:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:17:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:17:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:17:25,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:17:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419066420] [2023-08-29 19:17:25,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419066420] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:17:25,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239704090] [2023-08-29 19:17:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:17:25,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:17:25,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:17:25,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:17:25,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 19:17:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:17:25,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 19:17:25,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:17:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:17:25,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:17:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 19:17:25,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239704090] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 19:17:25,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 19:17:25,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2023-08-29 19:17:25,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859738907] [2023-08-29 19:17:25,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:17:25,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:17:25,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:17:25,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:17:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:17:26,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 949 [2023-08-29 19:17:26,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 428 transitions, 5259 flow. Second operand has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:26,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:17:26,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 949 [2023-08-29 19:17:26,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:17:35,261 INFO L130 PetriNetUnfolder]: 39837/68978 cut-off events. [2023-08-29 19:17:35,261 INFO L131 PetriNetUnfolder]: For 363205/373362 co-relation queries the response was YES. [2023-08-29 19:17:36,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255775 conditions, 68978 events. 39837/68978 cut-off events. For 363205/373362 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 624329 event pairs, 9666 based on Foata normal form. 580/60797 useless extension candidates. Maximal degree in co-relation 255734. Up to 43330 conditions per place. [2023-08-29 19:17:36,623 INFO L137 encePairwiseOnDemand]: 938/949 looper letters, 342 selfloop transitions, 32 changer transitions 15/463 dead transitions. [2023-08-29 19:17:36,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 463 transitions, 6195 flow [2023-08-29 19:17:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:17:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:17:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2662 transitions. [2023-08-29 19:17:36,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675096592904812 [2023-08-29 19:17:36,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2662 transitions. [2023-08-29 19:17:36,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2662 transitions. [2023-08-29 19:17:36,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:17:36,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2662 transitions. [2023-08-29 19:17:36,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 443.6666666666667) internal successors, (2662), 6 states have internal predecessors, (2662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:36,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:36,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 949.0) internal successors, (6643), 7 states have internal predecessors, (6643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:36,631 INFO L175 Difference]: Start difference. First operand has 180 places, 428 transitions, 5259 flow. Second operand 6 states and 2662 transitions. [2023-08-29 19:17:36,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 463 transitions, 6195 flow [2023-08-29 19:17:37,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 463 transitions, 6117 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-29 19:17:37,912 INFO L231 Difference]: Finished difference. Result has 177 places, 412 transitions, 5111 flow [2023-08-29 19:17:37,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=949, PETRI_DIFFERENCE_MINUEND_FLOW=5067, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5111, PETRI_PLACES=177, PETRI_TRANSITIONS=412} [2023-08-29 19:17:37,912 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 36 predicate places. [2023-08-29 19:17:37,912 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 412 transitions, 5111 flow [2023-08-29 19:17:37,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:37,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:17:37,913 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:17:37,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 19:17:38,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-29 19:17:38,114 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2023-08-29 19:17:38,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:17:38,114 INFO L85 PathProgramCache]: Analyzing trace with hash -635835217, now seen corresponding path program 1 times [2023-08-29 19:17:38,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:17:38,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355390339] [2023-08-29 19:17:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:17:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:17:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:17:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-29 19:17:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:17:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355390339] [2023-08-29 19:17:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355390339] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:17:39,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:17:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 19:17:39,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951302044] [2023-08-29 19:17:39,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:17:39,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 19:17:39,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:17:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 19:17:39,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-29 19:17:40,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 949 [2023-08-29 19:17:40,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 412 transitions, 5111 flow. Second operand has 8 states, 8 states have (on average 424.25) internal successors, (3394), 8 states have internal predecessors, (3394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:17:40,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:17:40,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 949 [2023-08-29 19:17:40,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand