./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.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 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:02,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:02,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:02,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:02,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:02,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:02,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:02,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:02,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:02,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:02,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:02,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:02,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:02,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:02,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:02,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:02,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:02,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:02,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:02,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:02,397 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:02,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:02,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:02,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:02,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:02,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:02,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:02,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:02,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:02,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:02,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:02,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:02,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:02,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:02,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:02,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:02,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:02,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:02,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:02,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:02,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:02,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:02,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:02,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:02,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:02,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:02,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:02,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:02,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:02,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:02,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:02,450 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:02,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:02,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:02,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:02,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:02,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:02,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:02,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:02,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:02,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:02,452 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:02,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:02,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:02,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:02,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:02,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:02,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:02,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:02,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:02,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:02,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:02,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:02,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:02,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:02,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:02,460 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:02,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:02,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 [2022-04-18 16:36:02,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:02,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:02,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:02,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:02,658 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:02,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-04-18 16:36:02,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d0b4c22/f3bb3a8a2da149d38662934e8f3b84a9/FLAG496d3f234 [2022-04-18 16:36:03,072 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:03,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-04-18 16:36:03,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d0b4c22/f3bb3a8a2da149d38662934e8f3b84a9/FLAG496d3f234 [2022-04-18 16:36:03,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d0b4c22/f3bb3a8a2da149d38662934e8f3b84a9 [2022-04-18 16:36:03,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:03,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:03,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:03,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:03,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:03,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e822ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03, skipping insertion in model container [2022-04-18 16:36:03,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:03,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:03,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-04-18 16:36:03,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:03,255 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:03,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-04-18 16:36:03,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:03,283 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:03,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03 WrapperNode [2022-04-18 16:36:03,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:03,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:03,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:03,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:03,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,313 INFO L137 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 173 [2022-04-18 16:36:03,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:03,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:03,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:03,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:03,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:03,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:03,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:03,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:03,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (1/1) ... [2022-04-18 16:36:03,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:03,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:03,379 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) [2022-04-18 16:36:03,384 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 [2022-04-18 16:36:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:36:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:36:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:36:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:36:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:03,412 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:36:03,469 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:03,471 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:03,763 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:03,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:03,838 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:36:03,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:03 BoogieIcfgContainer [2022-04-18 16:36:03,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:03,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:03,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:03,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:03,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:03" (1/3) ... [2022-04-18 16:36:03,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681c3def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:03, skipping insertion in model container [2022-04-18 16:36:03,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:03" (2/3) ... [2022-04-18 16:36:03,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681c3def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:03, skipping insertion in model container [2022-04-18 16:36:03,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:03" (3/3) ... [2022-04-18 16:36:03,852 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-04-18 16:36:03,856 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:03,857 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:03,857 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 16:36:03,857 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:03,920 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:36:03,958 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:03,963 INFO L340 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 [2022-04-18 16:36:03,963 INFO L341 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-04-18 16:36:03,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 198 transitions, 428 flow [2022-04-18 16:36:04,017 INFO L129 PetriNetUnfolder]: 10/194 cut-off events. [2022-04-18 16:36:04,018 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:36:04,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 10/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-04-18 16:36:04,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 198 transitions, 428 flow [2022-04-18 16:36:04,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 172 transitions, 368 flow [2022-04-18 16:36:04,034 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2022-04-18 16:36:04,034 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:04,034 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:04,034 INFO L255 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] [2022-04-18 16:36:04,035 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:04,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash 18766073, now seen corresponding path program 1 times [2022-04-18 16:36:04,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:04,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700483210] [2022-04-18 16:36:04,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:04,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:04,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700483210] [2022-04-18 16:36:04,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700483210] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:04,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:04,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:04,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514403218] [2022-04-18 16:36:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:04,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:04,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:04,262 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 198 [2022-04-18 16:36:04,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:04,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:04,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 198 [2022-04-18 16:36:04,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:04,952 INFO L129 PetriNetUnfolder]: 2736/5731 cut-off events. [2022-04-18 16:36:04,953 INFO L130 PetriNetUnfolder]: For 802/1231 co-relation queries the response was YES. [2022-04-18 16:36:04,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5731 events. 2736/5731 cut-off events. For 802/1231 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 46609 event pairs, 2064 based on Foata normal form. 1/4579 useless extension candidates. Maximal degree in co-relation 9484. Up to 3672 conditions per place. [2022-04-18 16:36:05,012 INFO L132 encePairwiseOnDemand]: 176/198 looper letters, 27 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2022-04-18 16:36:05,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 152 transitions, 386 flow [2022-04-18 16:36:05,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-04-18 16:36:05,027 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2022-04-18 16:36:05,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-04-18 16:36:05,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-04-18 16:36:05,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:05,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-04-18 16:36:05,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,046 INFO L186 Difference]: Start difference. First operand has 176 places, 172 transitions, 368 flow. Second operand 3 states and 490 transitions. [2022-04-18 16:36:05,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 152 transitions, 386 flow [2022-04-18 16:36:05,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 152 transitions, 370 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:36:05,057 INFO L242 Difference]: Finished difference. Result has 155 places, 151 transitions, 314 flow [2022-04-18 16:36:05,059 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2022-04-18 16:36:05,063 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -21 predicate places. [2022-04-18 16:36:05,064 INFO L478 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 314 flow [2022-04-18 16:36:05,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,065 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:05,065 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:05,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:05,066 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:05,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1643163133, now seen corresponding path program 1 times [2022-04-18 16:36:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:05,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420873355] [2022-04-18 16:36:05,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:05,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:05,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420873355] [2022-04-18 16:36:05,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420873355] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:05,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:05,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:05,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30051588] [2022-04-18 16:36:05,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:05,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:05,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:05,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:05,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:05,160 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2022-04-18 16:36:05,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:05,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2022-04-18 16:36:05,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:05,273 INFO L129 PetriNetUnfolder]: 121/630 cut-off events. [2022-04-18 16:36:05,274 INFO L130 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2022-04-18 16:36:05,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 630 events. 121/630 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3057 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 789. Up to 169 conditions per place. [2022-04-18 16:36:05,282 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 18 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2022-04-18 16:36:05,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 352 flow [2022-04-18 16:36:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-04-18 16:36:05,283 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8232323232323232 [2022-04-18 16:36:05,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-04-18 16:36:05,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-04-18 16:36:05,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:05,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-04-18 16:36:05,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,287 INFO L186 Difference]: Start difference. First operand has 155 places, 151 transitions, 314 flow. Second operand 3 states and 489 transitions. [2022-04-18 16:36:05,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 352 flow [2022-04-18 16:36:05,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:05,293 INFO L242 Difference]: Finished difference. Result has 153 places, 150 transitions, 312 flow [2022-04-18 16:36:05,294 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2022-04-18 16:36:05,294 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -23 predicate places. [2022-04-18 16:36:05,295 INFO L478 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 312 flow [2022-04-18 16:36:05,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,295 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:05,295 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:05,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:05,296 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:05,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2095930740, now seen corresponding path program 1 times [2022-04-18 16:36:05,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:05,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211208427] [2022-04-18 16:36:05,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:05,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:05,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:05,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211208427] [2022-04-18 16:36:05,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211208427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:05,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:05,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:05,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545697389] [2022-04-18 16:36:05,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:05,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:05,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:05,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:05,360 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 198 [2022-04-18 16:36:05,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:05,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 198 [2022-04-18 16:36:05,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:05,441 INFO L129 PetriNetUnfolder]: 121/629 cut-off events. [2022-04-18 16:36:05,441 INFO L130 PetriNetUnfolder]: For 31/35 co-relation queries the response was YES. [2022-04-18 16:36:05,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 629 events. 121/629 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3066 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 777. Up to 164 conditions per place. [2022-04-18 16:36:05,450 INFO L132 encePairwiseOnDemand]: 196/198 looper letters, 15 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2022-04-18 16:36:05,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 149 transitions, 342 flow [2022-04-18 16:36:05,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2022-04-18 16:36:05,453 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-04-18 16:36:05,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2022-04-18 16:36:05,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2022-04-18 16:36:05,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:05,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2022-04-18 16:36:05,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,456 INFO L186 Difference]: Start difference. First operand has 153 places, 150 transitions, 312 flow. Second operand 3 states and 494 transitions. [2022-04-18 16:36:05,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 149 transitions, 342 flow [2022-04-18 16:36:05,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 149 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:05,460 INFO L242 Difference]: Finished difference. Result has 152 places, 149 transitions, 308 flow [2022-04-18 16:36:05,461 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2022-04-18 16:36:05,462 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -24 predicate places. [2022-04-18 16:36:05,463 INFO L478 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 308 flow [2022-04-18 16:36:05,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,463 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:05,464 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:05,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:05,464 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:05,464 INFO L85 PathProgramCache]: Analyzing trace with hash 795453930, now seen corresponding path program 1 times [2022-04-18 16:36:05,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:05,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699647075] [2022-04-18 16:36:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:05,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:05,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:05,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699647075] [2022-04-18 16:36:05,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699647075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:05,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:05,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:05,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730550817] [2022-04-18 16:36:05,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:05,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:05,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:05,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:05,516 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2022-04-18 16:36:05,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:05,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2022-04-18 16:36:05,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:05,776 INFO L129 PetriNetUnfolder]: 1225/3017 cut-off events. [2022-04-18 16:36:05,776 INFO L130 PetriNetUnfolder]: For 85/283 co-relation queries the response was YES. [2022-04-18 16:36:05,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4752 conditions, 3017 events. 1225/3017 cut-off events. For 85/283 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 22725 event pairs, 747 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 4714. Up to 1640 conditions per place. [2022-04-18 16:36:05,803 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 25 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2022-04-18 16:36:05,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 152 transitions, 375 flow [2022-04-18 16:36:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2022-04-18 16:36:05,832 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8131313131313131 [2022-04-18 16:36:05,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2022-04-18 16:36:05,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2022-04-18 16:36:05,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:05,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2022-04-18 16:36:05,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,835 INFO L186 Difference]: Start difference. First operand has 152 places, 149 transitions, 308 flow. Second operand 3 states and 483 transitions. [2022-04-18 16:36:05,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 152 transitions, 375 flow [2022-04-18 16:36:05,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 152 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:05,841 INFO L242 Difference]: Finished difference. Result has 150 places, 149 transitions, 327 flow [2022-04-18 16:36:05,842 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=150, PETRI_TRANSITIONS=149} [2022-04-18 16:36:05,843 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -26 predicate places. [2022-04-18 16:36:05,843 INFO L478 AbstractCegarLoop]: Abstraction has has 150 places, 149 transitions, 327 flow [2022-04-18 16:36:05,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,843 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:05,843 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:05,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:05,844 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 84556006, now seen corresponding path program 1 times [2022-04-18 16:36:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:05,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851159415] [2022-04-18 16:36:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:05,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851159415] [2022-04-18 16:36:05,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851159415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:05,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:05,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67912845] [2022-04-18 16:36:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:05,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:05,995 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-04-18 16:36:05,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:05,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:05,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-04-18 16:36:05,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:06,090 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][81], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 221#true, 76#L93-4true, 218#(= |#race~N~0| 0), Black: 216#true, 188#L41-1true]) [2022-04-18 16:36:06,090 INFO L384 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-04-18 16:36:06,090 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:36:06,090 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:06,091 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:06,138 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 221#true, 6#L94-4true, 62#thread3ENTRYtrue, 98#L72-1true, 218#(= |#race~N~0| 0), Black: 216#true, 188#L41-1true]) [2022-04-18 16:36:06,139 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:06,139 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,139 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,139 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:06,140 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 193#L62-1true, 221#true, 6#L94-4true, 98#L72-1true, 105#thread2ENTRYtrue, Black: 216#true, 218#(= |#race~N~0| 0), 188#L41-1true]) [2022-04-18 16:36:06,140 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:06,140 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,141 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,141 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:06,148 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 63#thread1ENTRYtrue, 221#true, 6#L94-4true, 98#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-04-18 16:36:06,148 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:06,148 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:06,148 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,148 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,165 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 221#true, 6#L94-4true, 98#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0), 188#L41-1true]) [2022-04-18 16:36:06,165 INFO L384 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-04-18 16:36:06,165 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:06,165 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 16:36:06,165 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:06,329 INFO L129 PetriNetUnfolder]: 1329/2740 cut-off events. [2022-04-18 16:36:06,329 INFO L130 PetriNetUnfolder]: For 3/20 co-relation queries the response was YES. [2022-04-18 16:36:06,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4770 conditions, 2740 events. 1329/2740 cut-off events. For 3/20 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 19474 event pairs, 204 based on Foata normal form. 12/2411 useless extension candidates. Maximal degree in co-relation 4732. Up to 835 conditions per place. [2022-04-18 16:36:06,354 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 51 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-04-18 16:36:06,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 164 transitions, 467 flow [2022-04-18 16:36:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:06,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2022-04-18 16:36:06,356 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7289562289562289 [2022-04-18 16:36:06,356 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 866 transitions. [2022-04-18 16:36:06,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 866 transitions. [2022-04-18 16:36:06,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:06,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 866 transitions. [2022-04-18 16:36:06,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,361 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,361 INFO L186 Difference]: Start difference. First operand has 150 places, 149 transitions, 327 flow. Second operand 6 states and 866 transitions. [2022-04-18 16:36:06,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 164 transitions, 467 flow [2022-04-18 16:36:06,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 164 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:06,363 INFO L242 Difference]: Finished difference. Result has 154 places, 148 transitions, 333 flow [2022-04-18 16:36:06,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2022-04-18 16:36:06,364 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-04-18 16:36:06,364 INFO L478 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 333 flow [2022-04-18 16:36:06,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,365 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:06,365 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:06,365 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:06,365 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:06,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:06,366 INFO L85 PathProgramCache]: Analyzing trace with hash -293452775, now seen corresponding path program 1 times [2022-04-18 16:36:06,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:06,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659605903] [2022-04-18 16:36:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:06,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:06,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659605903] [2022-04-18 16:36:06,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659605903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:06,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:06,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:06,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622778676] [2022-04-18 16:36:06,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:06,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:06,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:06,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:06,488 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-04-18 16:36:06,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:06,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-04-18 16:36:06,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:06,609 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 221#true, 63#thread1ENTRYtrue, 6#L94-4true, 98#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0), 228#true]) [2022-04-18 16:36:06,609 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:06,609 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:06,610 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,610 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:06,636 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 221#true, 6#L94-4true, 98#L72-1true, 218#(= |#race~N~0| 0), Black: 216#true, 228#true, 188#L41-1true]) [2022-04-18 16:36:06,638 INFO L384 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-04-18 16:36:06,638 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 16:36:06,638 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:06,638 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:06,775 INFO L129 PetriNetUnfolder]: 1183/2497 cut-off events. [2022-04-18 16:36:06,776 INFO L130 PetriNetUnfolder]: For 76/82 co-relation queries the response was YES. [2022-04-18 16:36:06,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4521 conditions, 2497 events. 1183/2497 cut-off events. For 76/82 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 17720 event pairs, 602 based on Foata normal form. 0/2118 useless extension candidates. Maximal degree in co-relation 4482. Up to 1144 conditions per place. [2022-04-18 16:36:06,803 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 46 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2022-04-18 16:36:06,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 159 transitions, 455 flow [2022-04-18 16:36:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:06,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2022-04-18 16:36:06,806 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7247474747474747 [2022-04-18 16:36:06,806 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2022-04-18 16:36:06,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2022-04-18 16:36:06,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:06,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2022-04-18 16:36:06,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,811 INFO L186 Difference]: Start difference. First operand has 154 places, 148 transitions, 333 flow. Second operand 6 states and 861 transitions. [2022-04-18 16:36:06,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 159 transitions, 455 flow [2022-04-18 16:36:06,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 159 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:06,814 INFO L242 Difference]: Finished difference. Result has 154 places, 147 transitions, 332 flow [2022-04-18 16:36:06,815 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=154, PETRI_TRANSITIONS=147} [2022-04-18 16:36:06,816 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-04-18 16:36:06,817 INFO L478 AbstractCegarLoop]: Abstraction has has 154 places, 147 transitions, 332 flow [2022-04-18 16:36:06,817 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,817 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:06,817 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:06,817 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:06,818 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:06,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash -960649132, now seen corresponding path program 1 times [2022-04-18 16:36:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:06,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394096143] [2022-04-18 16:36:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:06,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:06,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394096143] [2022-04-18 16:36:06,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394096143] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:06,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:06,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:06,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949869117] [2022-04-18 16:36:06,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:06,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:06,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:06,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:06,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:06,966 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-04-18 16:36:06,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 147 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:06,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:06,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-04-18 16:36:06,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:07,213 INFO L129 PetriNetUnfolder]: 1026/2221 cut-off events. [2022-04-18 16:36:07,214 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-04-18 16:36:07,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3933 conditions, 2221 events. 1026/2221 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 15387 event pairs, 682 based on Foata normal form. 0/1896 useless extension candidates. Maximal degree in co-relation 3894. Up to 1261 conditions per place. [2022-04-18 16:36:07,236 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 41 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2022-04-18 16:36:07,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 154 transitions, 436 flow [2022-04-18 16:36:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2022-04-18 16:36:07,239 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7205387205387206 [2022-04-18 16:36:07,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 856 transitions. [2022-04-18 16:36:07,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 856 transitions. [2022-04-18 16:36:07,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:07,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 856 transitions. [2022-04-18 16:36:07,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,243 INFO L186 Difference]: Start difference. First operand has 154 places, 147 transitions, 332 flow. Second operand 6 states and 856 transitions. [2022-04-18 16:36:07,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 154 transitions, 436 flow [2022-04-18 16:36:07,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 154 transitions, 429 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:07,246 INFO L242 Difference]: Finished difference. Result has 154 places, 146 transitions, 331 flow [2022-04-18 16:36:07,246 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2022-04-18 16:36:07,247 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-04-18 16:36:07,247 INFO L478 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 331 flow [2022-04-18 16:36:07,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,247 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:07,247 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:07,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:07,248 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:07,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:07,248 INFO L85 PathProgramCache]: Analyzing trace with hash 49329741, now seen corresponding path program 1 times [2022-04-18 16:36:07,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:07,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368767207] [2022-04-18 16:36:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:07,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:07,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368767207] [2022-04-18 16:36:07,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368767207] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:07,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:07,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:07,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093277838] [2022-04-18 16:36:07,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:07,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:07,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:07,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:07,354 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-04-18 16:36:07,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:07,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-04-18 16:36:07,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:07,416 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][81], [214#(= |#race~c~0| 0), 18#L51-1true, 235#true, 193#L62-1true, 76#L93-4true, 242#true, Black: 216#true, 218#(= |#race~N~0| 0), 188#L41-1true]) [2022-04-18 16:36:07,416 INFO L384 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-04-18 16:36:07,417 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:07,417 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:36:07,417 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:07,593 INFO L129 PetriNetUnfolder]: 990/2122 cut-off events. [2022-04-18 16:36:07,593 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-04-18 16:36:07,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3771 conditions, 2122 events. 990/2122 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14571 event pairs, 711 based on Foata normal form. 0/1834 useless extension candidates. Maximal degree in co-relation 3732. Up to 1318 conditions per place. [2022-04-18 16:36:07,616 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 36 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2022-04-18 16:36:07,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 149 transitions, 417 flow [2022-04-18 16:36:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:07,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-04-18 16:36:07,619 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7163299663299664 [2022-04-18 16:36:07,619 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-04-18 16:36:07,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-04-18 16:36:07,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:07,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-04-18 16:36:07,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,623 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,624 INFO L186 Difference]: Start difference. First operand has 154 places, 146 transitions, 331 flow. Second operand 6 states and 851 transitions. [2022-04-18 16:36:07,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 149 transitions, 417 flow [2022-04-18 16:36:07,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:07,627 INFO L242 Difference]: Finished difference. Result has 154 places, 145 transitions, 330 flow [2022-04-18 16:36:07,628 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2022-04-18 16:36:07,628 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-04-18 16:36:07,628 INFO L478 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 330 flow [2022-04-18 16:36:07,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,629 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:07,629 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:07,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:07,630 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-04-18 16:36:07,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1918589854, now seen corresponding path program 1 times [2022-04-18 16:36:07,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:07,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870138587] [2022-04-18 16:36:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:07,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:36:07,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:07,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870138587] [2022-04-18 16:36:07,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870138587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:07,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:07,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:07,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962949085] [2022-04-18 16:36:07,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:07,684 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:07,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:07,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:07,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:07,685 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 198 [2022-04-18 16:36:07,685 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:07,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 198 [2022-04-18 16:36:07,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:07,726 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][81], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 242#true, 76#L93-4true, 249#true, 218#(= |#race~N~0| 0), Black: 216#true, 188#L41-1true]) [2022-04-18 16:36:07,726 INFO L384 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-04-18 16:36:07,727 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:07,727 INFO L387 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-04-18 16:36:07,727 INFO L387 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-04-18 16:36:07,745 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 242#true, 6#L94-4true, 62#thread3ENTRYtrue, 249#true, 98#L72-1true, 218#(= |#race~N~0| 0), Black: 216#true, 188#L41-1true]) [2022-04-18 16:36:07,745 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:07,745 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,745 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:07,746 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,746 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 193#L62-1true, 242#true, 6#L94-4true, 98#L72-1true, 249#true, 105#thread2ENTRYtrue, Black: 216#true, 218#(= |#race~N~0| 0), 188#L41-1true]) [2022-04-18 16:36:07,746 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:07,746 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,746 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:07,746 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,749 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 63#thread1ENTRYtrue, 242#true, 6#L94-4true, 249#true, 98#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-04-18 16:36:07,749 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-04-18 16:36:07,749 INFO L387 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-04-18 16:36:07,749 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,749 INFO L387 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-04-18 16:36:07,753 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][100], [214#(= |#race~c~0| 0), 18#L51-1true, 193#L62-1true, 242#true, 6#L94-4true, 98#L72-1true, 249#true, Black: 216#true, 218#(= |#race~N~0| 0), 188#L41-1true]) [2022-04-18 16:36:07,753 INFO L384 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-04-18 16:36:07,753 INFO L387 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-04-18 16:36:07,753 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:07,753 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:36:07,790 INFO L129 PetriNetUnfolder]: 319/1147 cut-off events. [2022-04-18 16:36:07,791 INFO L130 PetriNetUnfolder]: For 37/60 co-relation queries the response was YES. [2022-04-18 16:36:07,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1147 events. 319/1147 cut-off events. For 37/60 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7196 event pairs, 114 based on Foata normal form. 1/993 useless extension candidates. Maximal degree in co-relation 1641. Up to 247 conditions per place. [2022-04-18 16:36:07,797 INFO L132 encePairwiseOnDemand]: 196/198 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-04-18 16:36:07,797 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 354 flow [2022-04-18 16:36:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:07,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-04-18 16:36:07,799 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8417508417508418 [2022-04-18 16:36:07,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-04-18 16:36:07,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-04-18 16:36:07,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:07,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-04-18 16:36:07,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,801 INFO L186 Difference]: Start difference. First operand has 154 places, 145 transitions, 330 flow. Second operand 3 states and 500 transitions. [2022-04-18 16:36:07,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 354 flow [2022-04-18 16:36:07,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 144 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:07,803 INFO L242 Difference]: Finished difference. Result has 151 places, 0 transitions, 0 flow [2022-04-18 16:36:07,803 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=151, PETRI_TRANSITIONS=0} [2022-04-18 16:36:07,804 INFO L335 CegarLoopForPetriNet]: 176 programPoint places, -25 predicate places. [2022-04-18 16:36:07,804 INFO L478 AbstractCegarLoop]: Abstraction has has 151 places, 0 transitions, 0 flow [2022-04-18 16:36:07,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:07,807 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (47 of 48 remaining) [2022-04-18 16:36:07,807 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2022-04-18 16:36:07,807 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2022-04-18 16:36:07,807 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2022-04-18 16:36:07,808 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2022-04-18 16:36:07,808 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2022-04-18 16:36:07,808 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 48 remaining) [2022-04-18 16:36:07,810 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2022-04-18 16:36:07,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2022-04-18 16:36:07,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2022-04-18 16:36:07,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2022-04-18 16:36:07,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2022-04-18 16:36:07,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 48 remaining) [2022-04-18 16:36:07,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2022-04-18 16:36:07,815 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2022-04-18 16:36:07,816 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2022-04-18 16:36:07,819 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2022-04-18 16:36:07,819 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2022-04-18 16:36:07,820 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2022-04-18 16:36:07,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:07,824 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:07,827 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:36:07,827 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:36:07,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:36:07 BasicIcfg [2022-04-18 16:36:07,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:36:07,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:36:07,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:36:07,830 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:36:07,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:03" (3/4) ... [2022-04-18 16:36:07,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:36:07,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:36:07,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:36:07,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:36:07,836 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-04-18 16:36:07,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-04-18 16:36:07,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:36:07,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:36:07,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:36:07,875 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:36:07,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:36:07,876 INFO L158 Benchmark]: Toolchain (without parser) took 4784.32ms. Allocated memory was 98.6MB in the beginning and 633.3MB in the end (delta: 534.8MB). Free memory was 73.2MB in the beginning and 217.9MB in the end (delta: -144.6MB). Peak memory consumption was 388.6MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,876 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 75.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:36:07,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.78ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 67.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.64ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,877 INFO L158 Benchmark]: Boogie Preprocessor took 39.68ms. Allocated memory is still 98.6MB. Free memory was 65.5MB in the beginning and 63.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,877 INFO L158 Benchmark]: RCFGBuilder took 485.45ms. Allocated memory is still 98.6MB. Free memory was 63.5MB in the beginning and 67.1MB in the end (delta: -3.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,877 INFO L158 Benchmark]: TraceAbstraction took 3988.54ms. Allocated memory was 98.6MB in the beginning and 633.3MB in the end (delta: 534.8MB). Free memory was 66.4MB in the beginning and 221.0MB in the end (delta: -154.6MB). Peak memory consumption was 379.6MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,877 INFO L158 Benchmark]: Witness Printer took 45.05ms. Allocated memory is still 633.3MB. Free memory was 221.0MB in the beginning and 217.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:07,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 75.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.78ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 67.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.64ms. Allocated memory is still 98.6MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.68ms. Allocated memory is still 98.6MB. Free memory was 65.5MB in the beginning and 63.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.45ms. Allocated memory is still 98.6MB. Free memory was 63.5MB in the beginning and 67.1MB in the end (delta: -3.6MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3988.54ms. Allocated memory was 98.6MB in the beginning and 633.3MB in the end (delta: 534.8MB). Free memory was 66.4MB in the beginning and 221.0MB in the end (delta: -154.6MB). Peak memory consumption was 379.6MB. Max. memory is 16.1GB. * Witness Printer took 45.05ms. Allocated memory is still 633.3MB. Free memory was 221.0MB in the beginning and 217.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 255 locations, 48 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 87 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 26 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:36:07,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE