./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.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-send-receive-alt.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 d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:16,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:16,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:16,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:16,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:16,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:16,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:16,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:16,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:16,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:16,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:16,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:16,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:16,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:16,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:16,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:16,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:16,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:16,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:16,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:16,403 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:16,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:16,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:16,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:16,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:16,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:16,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:16,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:16,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:16,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:16,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:16,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:16,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:16,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:16,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:16,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:16,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:16,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:16,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:16,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:16,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:16,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:16,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:16,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:16,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:16,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:16,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:16,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:16,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:16,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:16,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:16,435 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:16,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:16,435 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:16,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:16,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:16,436 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:16,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:16,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:16,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:16,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:16,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:16,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:16,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:16,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:16,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:16,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:16,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:16,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:16,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:16,439 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:16,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:16,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:16,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8915194b3978f524e3b82313f6c905aed9b5c215c3d66b411e7857ee0b93981 [2022-04-18 16:36:16,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:16,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:16,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:16,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:16,620 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:16,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-04-18 16:36:16,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d8d0f97/8d6c2d4cab20435fbc9a77b8f398b374/FLAG06332e156 [2022-04-18 16:36:16,993 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:16,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-04-18 16:36:17,001 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d8d0f97/8d6c2d4cab20435fbc9a77b8f398b374/FLAG06332e156 [2022-04-18 16:36:17,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d8d0f97/8d6c2d4cab20435fbc9a77b8f398b374 [2022-04-18 16:36:17,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:17,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:17,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:17,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:17,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:17,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17, skipping insertion in model container [2022-04-18 16:36:17,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:17,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:17,174 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-send-receive-alt.wvr.c[2650,2663] [2022-04-18 16:36:17,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:17,189 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:17,209 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-send-receive-alt.wvr.c[2650,2663] [2022-04-18 16:36:17,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:17,219 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:17,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17 WrapperNode [2022-04-18 16:36:17,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:17,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:17,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:17,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:17,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,260 INFO L137 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 266 [2022-04-18 16:36:17,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:17,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:17,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:17,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:17,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:17,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:17,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:17,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:17,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (1/1) ... [2022-04-18 16:36:17,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:17,331 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 16:36:17,332 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 16:36:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:17,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:17,358 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 16:36:17,418 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:17,420 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:17,727 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:17,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:17,936 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:17,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:17 BoogieIcfgContainer [2022-04-18 16:36:17,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:17,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:17,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:17,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:17,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:17" (1/3) ... [2022-04-18 16:36:17,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4736f929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:17, skipping insertion in model container [2022-04-18 16:36:17,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:17" (2/3) ... [2022-04-18 16:36:17,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4736f929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:17, skipping insertion in model container [2022-04-18 16:36:17,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:17" (3/3) ... [2022-04-18 16:36:17,967 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2022-04-18 16:36:17,971 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:17,972 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:17,972 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-04-18 16:36:17,972 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:18,035 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:18,075 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:18,082 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 16:36:18,083 INFO L341 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-04-18 16:36:18,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 225 transitions, 466 flow [2022-04-18 16:36:18,161 INFO L129 PetriNetUnfolder]: 13/223 cut-off events. [2022-04-18 16:36:18,162 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:18,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 13/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 288 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2022-04-18 16:36:18,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 225 transitions, 466 flow [2022-04-18 16:36:18,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 202 transitions, 416 flow [2022-04-18 16:36:18,181 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2022-04-18 16:36:18,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:18,182 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,182 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] [2022-04-18 16:36:18,183 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2011143879, now seen corresponding path program 1 times [2022-04-18 16:36:18,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51475439] [2022-04-18 16:36:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,329 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 16:36:18,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51475439] [2022-04-18 16:36:18,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51475439] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254768370] [2022-04-18 16:36:18,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,365 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-04-18 16:36:18,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 202 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 16:36:18,370 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,370 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-04-18 16:36:18,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,475 INFO L129 PetriNetUnfolder]: 17/216 cut-off events. [2022-04-18 16:36:18,476 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-04-18 16:36:18,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 216 events. 17/216 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 352 event pairs, 4 based on Foata normal form. 14/203 useless extension candidates. Maximal degree in co-relation 127. Up to 33 conditions per place. [2022-04-18 16:36:18,479 INFO L132 encePairwiseOnDemand]: 194/225 looper letters, 16 selfloop transitions, 2 changer transitions 2/173 dead transitions. [2022-04-18 16:36:18,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 173 transitions, 394 flow [2022-04-18 16:36:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2022-04-18 16:36:18,495 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2022-04-18 16:36:18,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 575 transitions. [2022-04-18 16:36:18,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 575 transitions. [2022-04-18 16:36:18,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 575 transitions. [2022-04-18 16:36:18,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 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 16:36:18,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,512 INFO L186 Difference]: Start difference. First operand has 198 places, 202 transitions, 416 flow. Second operand 3 states and 575 transitions. [2022-04-18 16:36:18,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 173 transitions, 394 flow [2022-04-18 16:36:18,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 173 transitions, 386 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:18,519 INFO L242 Difference]: Finished difference. Result has 173 places, 171 transitions, 350 flow [2022-04-18 16:36:18,520 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=173, PETRI_TRANSITIONS=171} [2022-04-18 16:36:18,523 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -25 predicate places. [2022-04-18 16:36:18,523 INFO L478 AbstractCegarLoop]: Abstraction has has 173 places, 171 transitions, 350 flow [2022-04-18 16:36:18,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 16:36:18,524 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,524 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] [2022-04-18 16:36:18,524 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:18,524 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2069136146, now seen corresponding path program 1 times [2022-04-18 16:36:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276657846] [2022-04-18 16:36:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,571 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 16:36:18,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276657846] [2022-04-18 16:36:18,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276657846] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663040150] [2022-04-18 16:36:18,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,573 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,575 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 225 [2022-04-18 16:36:18,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 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 16:36:18,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 225 [2022-04-18 16:36:18,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,623 INFO L129 PetriNetUnfolder]: 9/183 cut-off events. [2022-04-18 16:36:18,623 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:36:18,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 183 events. 9/183 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 178 event pairs, 1 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 177. Up to 19 conditions per place. [2022-04-18 16:36:18,625 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 13 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-04-18 16:36:18,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 170 transitions, 378 flow [2022-04-18 16:36:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2022-04-18 16:36:18,627 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8192592592592592 [2022-04-18 16:36:18,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2022-04-18 16:36:18,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2022-04-18 16:36:18,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2022-04-18 16:36:18,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 16:36:18,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,632 INFO L186 Difference]: Start difference. First operand has 173 places, 171 transitions, 350 flow. Second operand 3 states and 553 transitions. [2022-04-18 16:36:18,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 170 transitions, 378 flow [2022-04-18 16:36:18,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 170 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:18,638 INFO L242 Difference]: Finished difference. Result has 170 places, 170 transitions, 348 flow [2022-04-18 16:36:18,638 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-04-18 16:36:18,639 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -28 predicate places. [2022-04-18 16:36:18,639 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 348 flow [2022-04-18 16:36:18,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 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 16:36:18,640 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,640 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] [2022-04-18 16:36:18,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:18,640 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,641 INFO L85 PathProgramCache]: Analyzing trace with hash 416450808, now seen corresponding path program 1 times [2022-04-18 16:36:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352603760] [2022-04-18 16:36:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,686 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 16:36:18,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352603760] [2022-04-18 16:36:18,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352603760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35736526] [2022-04-18 16:36:18,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,688 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,690 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 225 [2022-04-18 16:36:18,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 16:36:18,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 225 [2022-04-18 16:36:18,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,731 INFO L129 PetriNetUnfolder]: 16/263 cut-off events. [2022-04-18 16:36:18,731 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:36:18,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 263 events. 16/263 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 602 event pairs, 2 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 257. Up to 17 conditions per place. [2022-04-18 16:36:18,733 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 15 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-04-18 16:36:18,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 175 transitions, 395 flow [2022-04-18 16:36:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2022-04-18 16:36:18,736 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8355555555555556 [2022-04-18 16:36:18,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2022-04-18 16:36:18,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2022-04-18 16:36:18,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2022-04-18 16:36:18,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 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 16:36:18,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,740 INFO L186 Difference]: Start difference. First operand has 170 places, 170 transitions, 348 flow. Second operand 3 states and 564 transitions. [2022-04-18 16:36:18,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 175 transitions, 395 flow [2022-04-18 16:36:18,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 175 transitions, 391 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:18,747 INFO L242 Difference]: Finished difference. Result has 170 places, 170 transitions, 352 flow [2022-04-18 16:36:18,747 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-04-18 16:36:18,749 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -28 predicate places. [2022-04-18 16:36:18,749 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 352 flow [2022-04-18 16:36:18,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 16:36:18,750 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,750 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] [2022-04-18 16:36:18,750 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:18,750 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,751 INFO L85 PathProgramCache]: Analyzing trace with hash -350465523, now seen corresponding path program 1 times [2022-04-18 16:36:18,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667373987] [2022-04-18 16:36:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,805 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 16:36:18,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667373987] [2022-04-18 16:36:18,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667373987] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120990472] [2022-04-18 16:36:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,811 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 225 [2022-04-18 16:36:18,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 16:36:18,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 225 [2022-04-18 16:36:18,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,864 INFO L129 PetriNetUnfolder]: 46/345 cut-off events. [2022-04-18 16:36:18,864 INFO L130 PetriNetUnfolder]: For 39/53 co-relation queries the response was YES. [2022-04-18 16:36:18,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 345 events. 46/345 cut-off events. For 39/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1244 event pairs, 22 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 208. Up to 80 conditions per place. [2022-04-18 16:36:18,866 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 17 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2022-04-18 16:36:18,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 169 transitions, 388 flow [2022-04-18 16:36:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2022-04-18 16:36:18,868 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8103703703703704 [2022-04-18 16:36:18,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2022-04-18 16:36:18,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2022-04-18 16:36:18,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2022-04-18 16:36:18,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:36:18,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,874 INFO L186 Difference]: Start difference. First operand has 170 places, 170 transitions, 352 flow. Second operand 3 states and 547 transitions. [2022-04-18 16:36:18,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 169 transitions, 388 flow [2022-04-18 16:36:18,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 169 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:18,877 INFO L242 Difference]: Finished difference. Result has 170 places, 169 transitions, 352 flow [2022-04-18 16:36:18,878 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=170, PETRI_TRANSITIONS=169} [2022-04-18 16:36:18,879 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -28 predicate places. [2022-04-18 16:36:18,879 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 169 transitions, 352 flow [2022-04-18 16:36:18,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 16:36:18,880 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,880 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] [2022-04-18 16:36:18,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:18,880 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash 347724817, now seen corresponding path program 1 times [2022-04-18 16:36:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722463468] [2022-04-18 16:36:18,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:18,917 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 16:36:18,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:18,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722463468] [2022-04-18 16:36:18,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722463468] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:18,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:18,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:18,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664994045] [2022-04-18 16:36:18,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:18,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:18,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:18,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:18,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:18,920 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 225 [2022-04-18 16:36:18,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 169 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 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 16:36:18,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:18,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 225 [2022-04-18 16:36:18,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:18,959 INFO L129 PetriNetUnfolder]: 28/307 cut-off events. [2022-04-18 16:36:18,959 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-04-18 16:36:18,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 307 events. 28/307 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 936 event pairs, 10 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 326. Up to 47 conditions per place. [2022-04-18 16:36:18,960 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 13 selfloop transitions, 1 changer transitions 0/167 dead transitions. [2022-04-18 16:36:18,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 167 transitions, 376 flow [2022-04-18 16:36:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:18,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2022-04-18 16:36:18,962 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8177777777777778 [2022-04-18 16:36:18,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2022-04-18 16:36:18,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2022-04-18 16:36:18,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:18,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2022-04-18 16:36:18,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 16:36:18,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:18,966 INFO L186 Difference]: Start difference. First operand has 170 places, 169 transitions, 352 flow. Second operand 3 states and 552 transitions. [2022-04-18 16:36:18,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 167 transitions, 376 flow [2022-04-18 16:36:18,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:18,968 INFO L242 Difference]: Finished difference. Result has 168 places, 167 transitions, 346 flow [2022-04-18 16:36:18,968 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=168, PETRI_TRANSITIONS=167} [2022-04-18 16:36:18,969 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -30 predicate places. [2022-04-18 16:36:18,969 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 167 transitions, 346 flow [2022-04-18 16:36:18,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 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 16:36:18,969 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:18,970 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] [2022-04-18 16:36:18,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:18,970 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash -649436836, now seen corresponding path program 1 times [2022-04-18 16:36:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:18,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098672312] [2022-04-18 16:36:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:18,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,015 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 16:36:19,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098672312] [2022-04-18 16:36:19,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098672312] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:19,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911559043] [2022-04-18 16:36:19,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,017 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:19,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:19,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:19,018 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 225 [2022-04-18 16:36:19,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 167 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 16:36:19,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 225 [2022-04-18 16:36:19,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,050 INFO L129 PetriNetUnfolder]: 14/231 cut-off events. [2022-04-18 16:36:19,050 INFO L130 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-04-18 16:36:19,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 231 events. 14/231 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 438 event pairs, 4 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 225. Up to 27 conditions per place. [2022-04-18 16:36:19,051 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 11 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-04-18 16:36:19,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 166 transitions, 370 flow [2022-04-18 16:36:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:19,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2022-04-18 16:36:19,052 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8281481481481482 [2022-04-18 16:36:19,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2022-04-18 16:36:19,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2022-04-18 16:36:19,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2022-04-18 16:36:19,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 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 16:36:19,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,055 INFO L186 Difference]: Start difference. First operand has 168 places, 167 transitions, 346 flow. Second operand 3 states and 559 transitions. [2022-04-18 16:36:19,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 166 transitions, 370 flow [2022-04-18 16:36:19,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 166 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:19,058 INFO L242 Difference]: Finished difference. Result has 168 places, 166 transitions, 347 flow [2022-04-18 16:36:19,058 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=168, PETRI_TRANSITIONS=166} [2022-04-18 16:36:19,060 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -30 predicate places. [2022-04-18 16:36:19,060 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 166 transitions, 347 flow [2022-04-18 16:36:19,061 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 16:36:19,061 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,061 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] [2022-04-18 16:36:19,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:19,062 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash 764491221, now seen corresponding path program 1 times [2022-04-18 16:36:19,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628201512] [2022-04-18 16:36:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,182 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 16:36:19,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628201512] [2022-04-18 16:36:19,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628201512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:19,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029736549] [2022-04-18 16:36:19,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,184 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:19,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:19,186 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 225 [2022-04-18 16:36:19,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 166 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 0 states have call successors, (0), 0 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 16:36:19,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 225 [2022-04-18 16:36:19,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,291 INFO L129 PetriNetUnfolder]: 86/326 cut-off events. [2022-04-18 16:36:19,291 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-04-18 16:36:19,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 326 events. 86/326 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1122 event pairs, 40 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 478. Up to 155 conditions per place. [2022-04-18 16:36:19,294 INFO L132 encePairwiseOnDemand]: 219/225 looper letters, 31 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2022-04-18 16:36:19,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 165 transitions, 417 flow [2022-04-18 16:36:19,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 990 transitions. [2022-04-18 16:36:19,297 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2022-04-18 16:36:19,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 990 transitions. [2022-04-18 16:36:19,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 990 transitions. [2022-04-18 16:36:19,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 990 transitions. [2022-04-18 16:36:19,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 16:36:19,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,301 INFO L186 Difference]: Start difference. First operand has 168 places, 166 transitions, 347 flow. Second operand 6 states and 990 transitions. [2022-04-18 16:36:19,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 165 transitions, 417 flow [2022-04-18 16:36:19,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 165 transitions, 413 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:19,304 INFO L242 Difference]: Finished difference. Result has 170 places, 165 transitions, 351 flow [2022-04-18 16:36:19,304 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=170, PETRI_TRANSITIONS=165} [2022-04-18 16:36:19,304 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -28 predicate places. [2022-04-18 16:36:19,304 INFO L478 AbstractCegarLoop]: Abstraction has has 170 places, 165 transitions, 351 flow [2022-04-18 16:36:19,305 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 0 states have call successors, (0), 0 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 16:36:19,305 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,305 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] [2022-04-18 16:36:19,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:19,305 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:19,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,306 INFO L85 PathProgramCache]: Analyzing trace with hash -646907447, now seen corresponding path program 1 times [2022-04-18 16:36:19,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831903193] [2022-04-18 16:36:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,365 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 16:36:19,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831903193] [2022-04-18 16:36:19,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831903193] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:19,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858830815] [2022-04-18 16:36:19,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:19,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:19,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:19,368 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 225 [2022-04-18 16:36:19,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 165 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 16:36:19,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 225 [2022-04-18 16:36:19,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,422 INFO L129 PetriNetUnfolder]: 37/333 cut-off events. [2022-04-18 16:36:19,423 INFO L130 PetriNetUnfolder]: For 32/42 co-relation queries the response was YES. [2022-04-18 16:36:19,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 333 events. 37/333 cut-off events. For 32/42 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1034 event pairs, 5 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 407. Up to 46 conditions per place. [2022-04-18 16:36:19,424 INFO L132 encePairwiseOnDemand]: 219/225 looper letters, 15 selfloop transitions, 5 changer transitions 0/169 dead transitions. [2022-04-18 16:36:19,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 169 transitions, 406 flow [2022-04-18 16:36:19,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:19,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:19,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2022-04-18 16:36:19,425 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8251851851851851 [2022-04-18 16:36:19,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 557 transitions. [2022-04-18 16:36:19,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions. [2022-04-18 16:36:19,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions. [2022-04-18 16:36:19,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 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 16:36:19,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,428 INFO L186 Difference]: Start difference. First operand has 170 places, 165 transitions, 351 flow. Second operand 3 states and 557 transitions. [2022-04-18 16:36:19,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 169 transitions, 406 flow [2022-04-18 16:36:19,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 169 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:19,430 INFO L242 Difference]: Finished difference. Result has 166 places, 166 transitions, 368 flow [2022-04-18 16:36:19,431 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=166, PETRI_TRANSITIONS=166} [2022-04-18 16:36:19,431 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -32 predicate places. [2022-04-18 16:36:19,431 INFO L478 AbstractCegarLoop]: Abstraction has has 166 places, 166 transitions, 368 flow [2022-04-18 16:36:19,431 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 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 16:36:19,432 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,432 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] [2022-04-18 16:36:19,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:19,432 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:19,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash -485270908, now seen corresponding path program 1 times [2022-04-18 16:36:19,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978444575] [2022-04-18 16:36:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,520 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 16:36:19,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978444575] [2022-04-18 16:36:19,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978444575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314463533] [2022-04-18 16:36:19,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:19,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:19,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:19,523 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 225 [2022-04-18 16:36:19,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 166 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 165.83333333333334) internal successors, (995), 6 states have internal predecessors, (995), 0 states have call successors, (0), 0 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 16:36:19,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 225 [2022-04-18 16:36:19,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,656 INFO L129 PetriNetUnfolder]: 167/534 cut-off events. [2022-04-18 16:36:19,656 INFO L130 PetriNetUnfolder]: For 480/512 co-relation queries the response was YES. [2022-04-18 16:36:19,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 534 events. 167/534 cut-off events. For 480/512 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2096 event pairs, 5 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 1002. Up to 148 conditions per place. [2022-04-18 16:36:19,659 INFO L132 encePairwiseOnDemand]: 220/225 looper letters, 50 selfloop transitions, 4 changer transitions 0/189 dead transitions. [2022-04-18 16:36:19,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 189 transitions, 618 flow [2022-04-18 16:36:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:19,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1024 transitions. [2022-04-18 16:36:19,662 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7585185185185185 [2022-04-18 16:36:19,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1024 transitions. [2022-04-18 16:36:19,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1024 transitions. [2022-04-18 16:36:19,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1024 transitions. [2022-04-18 16:36:19,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 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 16:36:19,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,667 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,667 INFO L186 Difference]: Start difference. First operand has 166 places, 166 transitions, 368 flow. Second operand 6 states and 1024 transitions. [2022-04-18 16:36:19,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 189 transitions, 618 flow [2022-04-18 16:36:19,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 189 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:19,671 INFO L242 Difference]: Finished difference. Result has 169 places, 165 transitions, 369 flow [2022-04-18 16:36:19,672 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=169, PETRI_TRANSITIONS=165} [2022-04-18 16:36:19,672 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -29 predicate places. [2022-04-18 16:36:19,672 INFO L478 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 369 flow [2022-04-18 16:36:19,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.83333333333334) internal successors, (995), 6 states have internal predecessors, (995), 0 states have call successors, (0), 0 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 16:36:19,673 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,673 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] [2022-04-18 16:36:19,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:19,673 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:19,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1143842301, now seen corresponding path program 1 times [2022-04-18 16:36:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660927088] [2022-04-18 16:36:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,768 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 16:36:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660927088] [2022-04-18 16:36:19,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660927088] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705348276] [2022-04-18 16:36:19,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:19,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:19,773 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 225 [2022-04-18 16:36:19,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 165 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 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 16:36:19,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 225 [2022-04-18 16:36:19,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,895 INFO L129 PetriNetUnfolder]: 127/436 cut-off events. [2022-04-18 16:36:19,896 INFO L130 PetriNetUnfolder]: For 229/294 co-relation queries the response was YES. [2022-04-18 16:36:19,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 436 events. 127/436 cut-off events. For 229/294 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1609 event pairs, 30 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 812. Up to 151 conditions per place. [2022-04-18 16:36:19,899 INFO L132 encePairwiseOnDemand]: 220/225 looper letters, 33 selfloop transitions, 4 changer transitions 0/172 dead transitions. [2022-04-18 16:36:19,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 172 transitions, 473 flow [2022-04-18 16:36:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions. [2022-04-18 16:36:19,901 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7548148148148148 [2022-04-18 16:36:19,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1019 transitions. [2022-04-18 16:36:19,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1019 transitions. [2022-04-18 16:36:19,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1019 transitions. [2022-04-18 16:36:19,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 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 16:36:19,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,905 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 225.0) internal successors, (1575), 7 states have internal predecessors, (1575), 0 states have call successors, (0), 0 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 16:36:19,905 INFO L186 Difference]: Start difference. First operand has 169 places, 165 transitions, 369 flow. Second operand 6 states and 1019 transitions. [2022-04-18 16:36:19,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 172 transitions, 473 flow [2022-04-18 16:36:19,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 172 transitions, 466 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:19,908 INFO L242 Difference]: Finished difference. Result has 169 places, 164 transitions, 368 flow [2022-04-18 16:36:19,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=368, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2022-04-18 16:36:19,910 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -29 predicate places. [2022-04-18 16:36:19,910 INFO L478 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 368 flow [2022-04-18 16:36:19,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 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 16:36:19,911 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:19,911 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] [2022-04-18 16:36:19,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:19,912 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:36:19,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash 681023327, now seen corresponding path program 1 times [2022-04-18 16:36:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:19,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106256767] [2022-04-18 16:36:19,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:19,951 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 16:36:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:19,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106256767] [2022-04-18 16:36:19,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106256767] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:19,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:19,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:19,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148156530] [2022-04-18 16:36:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:19,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:19,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:19,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:19,953 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 225 [2022-04-18 16:36:19,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 16:36:19,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:19,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 225 [2022-04-18 16:36:19,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:19,982 INFO L129 PetriNetUnfolder]: 18/265 cut-off events. [2022-04-18 16:36:19,982 INFO L130 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-04-18 16:36:19,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 265 events. 18/265 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 571 event pairs, 3 based on Foata normal form. 3/249 useless extension candidates. Maximal degree in co-relation 313. Up to 29 conditions per place. [2022-04-18 16:36:19,983 INFO L132 encePairwiseOnDemand]: 222/225 looper letters, 0 selfloop transitions, 0 changer transitions 162/162 dead transitions. [2022-04-18 16:36:19,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 162 transitions, 390 flow [2022-04-18 16:36:19,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2022-04-18 16:36:19,985 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2022-04-18 16:36:19,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2022-04-18 16:36:19,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2022-04-18 16:36:19,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:19,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2022-04-18 16:36:19,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 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 16:36:19,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 225.0) internal successors, (900), 4 states have internal predecessors, (900), 0 states have call successors, (0), 0 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 16:36:19,987 INFO L186 Difference]: Start difference. First operand has 169 places, 164 transitions, 368 flow. Second operand 3 states and 558 transitions. [2022-04-18 16:36:19,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 162 transitions, 390 flow [2022-04-18 16:36:19,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 162 transitions, 383 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:19,990 INFO L242 Difference]: Finished difference. Result has 165 places, 0 transitions, 0 flow [2022-04-18 16:36:19,990 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=225, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=165, PETRI_TRANSITIONS=0} [2022-04-18 16:36:19,991 INFO L335 CegarLoopForPetriNet]: 198 programPoint places, -33 predicate places. [2022-04-18 16:36:19,991 INFO L478 AbstractCegarLoop]: Abstraction has has 165 places, 0 transitions, 0 flow [2022-04-18 16:36:19,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 16:36:19,994 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (62 of 63 remaining) [2022-04-18 16:36:19,994 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2022-04-18 16:36:19,994 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2022-04-18 16:36:19,995 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2022-04-18 16:36:19,996 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2022-04-18 16:36:19,997 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2022-04-18 16:36:19,998 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2022-04-18 16:36:19,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:20,000 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:20,004 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:36:20,004 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:36:20,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:36:20 BasicIcfg [2022-04-18 16:36:20,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:36:20,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:36:20,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:36:20,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:36:20,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:17" (3/4) ... [2022-04-18 16:36:20,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:36:20,015 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:36:20,015 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:36:20,019 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-04-18 16:36:20,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:36:20,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:36:20,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:36:20,052 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:36:20,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:36:20,052 INFO L158 Benchmark]: Toolchain (without parser) took 3037.61ms. Allocated memory was 88.1MB in the beginning and 167.8MB in the end (delta: 79.7MB). Free memory was 55.1MB in the beginning and 56.8MB in the end (delta: -1.8MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,053 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:36:20,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.69ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 54.9MB in the beginning and 90.2MB in the end (delta: -35.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 87.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,053 INFO L158 Benchmark]: Boogie Preprocessor took 39.87ms. Allocated memory is still 115.3MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,053 INFO L158 Benchmark]: RCFGBuilder took 636.14ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 39.9MB in the end (delta: 45.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,054 INFO L158 Benchmark]: TraceAbstraction took 2046.86ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 90.6MB in the beginning and 61.0MB in the end (delta: 29.6MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,054 INFO L158 Benchmark]: Witness Printer took 42.13ms. Allocated memory is still 167.8MB. Free memory was 61.0MB in the beginning and 56.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:20,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.69ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 54.9MB in the beginning and 90.2MB in the end (delta: -35.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.10ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 87.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.87ms. Allocated memory is still 115.3MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 636.14ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 39.9MB in the end (delta: 45.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2046.86ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 90.6MB in the beginning and 61.0MB in the end (delta: 29.6MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. * Witness Printer took 42.13ms. Allocated memory is still 167.8MB. Free memory was 61.0MB in the beginning and 56.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: 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: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: 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: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: 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 5 procedures, 275 locations, 63 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: 1.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 94 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=0, InterpolantAutomatonStates: 42, 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, 0.4s InterpolantComputationTime, 719 NumberOfCodeBlocks, 719 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 1001 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:36:20,089 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