./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-mts.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 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:13:16,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:13:16,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:13:16,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:13:16,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:13:16,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:13:16,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:13:16,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:13:16,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:13:16,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:13:16,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:13:16,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:13:16,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:13:16,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:13:16,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:13:16,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:13:16,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:13:16,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:13:16,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:13:16,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:13:16,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:13:16,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:13:16,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:13:16,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:13:16,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:13:16,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:13:16,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:13:16,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:13:16,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:13:16,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:13:16,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:13:16,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:13:16,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:13:16,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:13:16,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:13:16,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:13:16,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:13:16,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:13:16,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:13:16,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:13:16,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:13:16,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:13:16,212 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:13:16,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:13:16,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:13:16,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:13:16,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:13:16,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:13:16,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:13:16,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:13:16,214 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:13:16,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:13:16,215 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:13:16,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:13:16,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:13:16,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:13:16,216 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:13:16,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:13:16,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:13:16,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:13:16,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:13:16,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:13:16,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:13:16,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:13:16,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:13:16,219 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:13:16,219 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d38eb9d6ba70070fe3ced1aec90f1c3400cc1f89786e1bd625a19020cb0869f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:13:16,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:13:16,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:13:16,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:13:16,486 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:13:16,487 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:13:16,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2023-08-29 19:13:17,431 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:13:17,600 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:13:17,601 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c [2023-08-29 19:13:17,606 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47a30215/1241cf6b1ec446538f721f7cb8aed120/FLAG16e9e218e [2023-08-29 19:13:17,616 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e47a30215/1241cf6b1ec446538f721f7cb8aed120 [2023-08-29 19:13:17,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:13:17,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:13:17,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:13:17,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:13:17,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:13:17,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d69d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17, skipping insertion in model container [2023-08-29 19:13:17,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:13:17,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:13:17,802 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c[2533,2546] [2023-08-29 19:13:17,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:13:17,820 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:13:17,854 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-mts.wvr.c[2533,2546] [2023-08-29 19:13:17,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:13:17,874 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:13:17,874 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:13:17,878 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:13:17,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17 WrapperNode [2023-08-29 19:13:17,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:13:17,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:13:17,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:13:17,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:13:17,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,963 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 13, calls inlined = 19, statements flattened = 379 [2023-08-29 19:13:17,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:13:17,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:13:17,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:13:17,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:13:17,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:17,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:18,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:13:18,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:13:18,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:13:18,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:13:18,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (1/1) ... [2023-08-29 19:13:18,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:13:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:13:18,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 19:13:18,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 19:13:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:13:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:13:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:13:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:13:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:13:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:13:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:13:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:13:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:13:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:13:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:13:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:13:18,070 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:13:18,177 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:13:18,179 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:13:18,657 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:13:18,877 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:13:18,877 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 19:13:18,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:18 BoogieIcfgContainer [2023-08-29 19:13:18,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:13:18,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:13:18,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:13:18,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:13:18,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:13:17" (1/3) ... [2023-08-29 19:13:18,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dc65e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:18, skipping insertion in model container [2023-08-29 19:13:18,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:17" (2/3) ... [2023-08-29 19:13:18,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dc65e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:18, skipping insertion in model container [2023-08-29 19:13:18,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:18" (3/3) ... [2023-08-29 19:13:18,885 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-08-29 19:13:18,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:13:18,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:13:18,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-08-29 19:13:18,897 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:13:18,984 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 19:13:19,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 369 transitions, 762 flow [2023-08-29 19:13:19,137 INFO L130 PetriNetUnfolder]: 20/366 cut-off events. [2023-08-29 19:13:19,138 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:13:19,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 366 events. 20/366 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 781 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 271. Up to 2 conditions per place. [2023-08-29 19:13:19,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 369 transitions, 762 flow [2023-08-29 19:13:19,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 345 transitions, 708 flow [2023-08-29 19:13:19,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:13:19,163 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 345 transitions, 708 flow [2023-08-29 19:13:19,166 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 345 transitions, 708 flow [2023-08-29 19:13:19,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 345 transitions, 708 flow [2023-08-29 19:13:19,221 INFO L130 PetriNetUnfolder]: 18/345 cut-off events. [2023-08-29 19:13:19,222 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:13:19,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 345 events. 18/345 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 767 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 271. Up to 2 conditions per place. [2023-08-29 19:13:19,233 INFO L119 LiptonReduction]: Number of co-enabled transitions 26082 [2023-08-29 19:13:27,732 INFO L134 LiptonReduction]: Checked pairs total: 134949 [2023-08-29 19:13:27,733 INFO L136 LiptonReduction]: Total number of compositions: 340 [2023-08-29 19:13:27,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:13:27,745 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@139588e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2023-08-29 19:13:27,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-08-29 19:13:27,746 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:13:27,747 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:13:27,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:27,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:13:27,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:27,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1594, now seen corresponding path program 1 times [2023-08-29 19:13:27,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:27,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307309329] [2023-08-29 19:13:27,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:27,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:27,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:27,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307309329] [2023-08-29 19:13:27,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307309329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:27,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:27,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:13:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553091813] [2023-08-29 19:13:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:27,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:13:27,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:27,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:13:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:13:27,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 709 [2023-08-29 19:13:27,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 127 transitions, 272 flow. Second operand has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:27,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:27,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 709 [2023-08-29 19:13:27,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:28,202 INFO L130 PetriNetUnfolder]: 1597/4224 cut-off events. [2023-08-29 19:13:28,202 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2023-08-29 19:13:28,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6581 conditions, 4224 events. 1597/4224 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 37262 event pairs, 1046 based on Foata normal form. 507/3918 useless extension candidates. Maximal degree in co-relation 6026. Up to 2179 conditions per place. [2023-08-29 19:13:28,221 INFO L137 encePairwiseOnDemand]: 673/709 looper letters, 32 selfloop transitions, 0 changer transitions 1/91 dead transitions. [2023-08-29 19:13:28,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 266 flow [2023-08-29 19:13:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:13:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:13:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 745 transitions. [2023-08-29 19:13:28,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5253878702397743 [2023-08-29 19:13:28,232 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 745 transitions. [2023-08-29 19:13:28,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 745 transitions. [2023-08-29 19:13:28,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:28,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 745 transitions. [2023-08-29 19:13:28,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 372.5) internal successors, (745), 2 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,243 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 709.0) internal successors, (2127), 3 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,245 INFO L175 Difference]: Start difference. First operand has 127 places, 127 transitions, 272 flow. Second operand 2 states and 745 transitions. [2023-08-29 19:13:28,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 266 flow [2023-08-29 19:13:28,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 19:13:28,250 INFO L231 Difference]: Finished difference. Result has 90 places, 90 transitions, 185 flow [2023-08-29 19:13:28,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=185, PETRI_PLACES=90, PETRI_TRANSITIONS=90} [2023-08-29 19:13:28,254 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -37 predicate places. [2023-08-29 19:13:28,254 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 90 transitions, 185 flow [2023-08-29 19:13:28,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:28,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 19:13:28,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:13:28,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:28,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash 106756084, now seen corresponding path program 1 times [2023-08-29 19:13:28,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:28,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389391692] [2023-08-29 19:13:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:28,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:28,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:28,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389391692] [2023-08-29 19:13:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389391692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:28,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:28,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259729294] [2023-08-29 19:13:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:28,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:28,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:28,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:28,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:28,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:28,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 90 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:28,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:28,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:28,784 INFO L130 PetriNetUnfolder]: 2604/6072 cut-off events. [2023-08-29 19:13:28,784 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-08-29 19:13:28,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9732 conditions, 6072 events. 2604/6072 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 52052 event pairs, 1893 based on Foata normal form. 0/4885 useless extension candidates. Maximal degree in co-relation 9729. Up to 3575 conditions per place. [2023-08-29 19:13:28,806 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 34 selfloop transitions, 1 changer transitions 0/88 dead transitions. [2023-08-29 19:13:28,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 251 flow [2023-08-29 19:13:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:28,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2023-08-29 19:13:28,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47578749412317817 [2023-08-29 19:13:28,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2023-08-29 19:13:28,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2023-08-29 19:13:28,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:28,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2023-08-29 19:13:28,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,816 INFO L175 Difference]: Start difference. First operand has 90 places, 90 transitions, 185 flow. Second operand 3 states and 1012 transitions. [2023-08-29 19:13:28,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 251 flow [2023-08-29 19:13:28,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:13:28,818 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2023-08-29 19:13:28,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2023-08-29 19:13:28,818 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -38 predicate places. [2023-08-29 19:13:28,819 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2023-08-29 19:13:28,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:28,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:28,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:13:28,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:28,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash -486334750, now seen corresponding path program 1 times [2023-08-29 19:13:28,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:28,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890729490] [2023-08-29 19:13:28,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:28,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:28,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890729490] [2023-08-29 19:13:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890729490] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:28,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:28,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704875624] [2023-08-29 19:13:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:28,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:28,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:28,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:28,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:28,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:28,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:28,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:28,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:29,333 INFO L130 PetriNetUnfolder]: 2582/5446 cut-off events. [2023-08-29 19:13:29,334 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-29 19:13:29,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9138 conditions, 5446 events. 2582/5446 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 42989 event pairs, 474 based on Foata normal form. 0/4735 useless extension candidates. Maximal degree in co-relation 9134. Up to 3323 conditions per place. [2023-08-29 19:13:29,353 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 51 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2023-08-29 19:13:29,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 102 transitions, 323 flow [2023-08-29 19:13:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-08-29 19:13:29,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48566055477197934 [2023-08-29 19:13:29,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-08-29 19:13:29,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-08-29 19:13:29,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:29,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-08-29 19:13:29,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,361 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 1033 transitions. [2023-08-29 19:13:29,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 102 transitions, 323 flow [2023-08-29 19:13:29,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 102 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:29,364 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 195 flow [2023-08-29 19:13:29,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=87, PETRI_TRANSITIONS=87} [2023-08-29 19:13:29,364 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -40 predicate places. [2023-08-29 19:13:29,367 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 195 flow [2023-08-29 19:13:29,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.0) internal successors, (981), 3 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:29,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:29,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:13:29,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:29,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:29,369 INFO L85 PathProgramCache]: Analyzing trace with hash -77754687, now seen corresponding path program 1 times [2023-08-29 19:13:29,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692057847] [2023-08-29 19:13:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:29,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:29,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:29,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692057847] [2023-08-29 19:13:29,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692057847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:29,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:29,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:29,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755795423] [2023-08-29 19:13:29,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:29,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:29,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:29,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:29,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:29,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:29,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:29,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:29,820 INFO L130 PetriNetUnfolder]: 2512/5615 cut-off events. [2023-08-29 19:13:29,820 INFO L131 PetriNetUnfolder]: For 422/578 co-relation queries the response was YES. [2023-08-29 19:13:29,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9774 conditions, 5615 events. 2512/5615 cut-off events. For 422/578 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 46419 event pairs, 1755 based on Foata normal form. 0/4859 useless extension candidates. Maximal degree in co-relation 9770. Up to 3486 conditions per place. [2023-08-29 19:13:29,841 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 36 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2023-08-29 19:13:29,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 85 transitions, 265 flow [2023-08-29 19:13:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2023-08-29 19:13:29,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47531734837799716 [2023-08-29 19:13:29,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2023-08-29 19:13:29,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2023-08-29 19:13:29,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:29,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2023-08-29 19:13:29,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,853 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 195 flow. Second operand 3 states and 1011 transitions. [2023-08-29 19:13:29,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 85 transitions, 265 flow [2023-08-29 19:13:29,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:13:29,855 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 193 flow [2023-08-29 19:13:29,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2023-08-29 19:13:29,857 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -40 predicate places. [2023-08-29 19:13:29,857 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 193 flow [2023-08-29 19:13:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:29,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:29,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:13:29,858 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:29,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash 378830133, now seen corresponding path program 1 times [2023-08-29 19:13:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:29,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488349023] [2023-08-29 19:13:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:29,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:29,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488349023] [2023-08-29 19:13:29,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488349023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:29,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:29,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:13:29,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333803281] [2023-08-29 19:13:29,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:29,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:13:29,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:13:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:13:29,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 709 [2023-08-29 19:13:29,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:29,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:29,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 709 [2023-08-29 19:13:29,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:30,246 INFO L130 PetriNetUnfolder]: 1806/4386 cut-off events. [2023-08-29 19:13:30,247 INFO L131 PetriNetUnfolder]: For 364/431 co-relation queries the response was YES. [2023-08-29 19:13:30,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7409 conditions, 4386 events. 1806/4386 cut-off events. For 364/431 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 37247 event pairs, 1151 based on Foata normal form. 1/3673 useless extension candidates. Maximal degree in co-relation 7404. Up to 2487 conditions per place. [2023-08-29 19:13:30,262 INFO L137 encePairwiseOnDemand]: 706/709 looper letters, 34 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2023-08-29 19:13:30,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 86 transitions, 267 flow [2023-08-29 19:13:30,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:13:30,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:13:30,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-08-29 19:13:30,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48566055477197934 [2023-08-29 19:13:30,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-08-29 19:13:30,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-08-29 19:13:30,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:30,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-08-29 19:13:30,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:30,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:30,271 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:30,271 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 193 flow. Second operand 3 states and 1033 transitions. [2023-08-29 19:13:30,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 86 transitions, 267 flow [2023-08-29 19:13:30,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 86 transitions, 266 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:30,273 INFO L231 Difference]: Finished difference. Result has 89 places, 86 transitions, 204 flow [2023-08-29 19:13:30,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=89, PETRI_TRANSITIONS=86} [2023-08-29 19:13:30,273 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -38 predicate places. [2023-08-29 19:13:30,273 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 86 transitions, 204 flow [2023-08-29 19:13:30,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.6666666666667) internal successors, (1007), 3 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:30,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:30,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:30,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:13:30,274 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:30,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash -140049489, now seen corresponding path program 1 times [2023-08-29 19:13:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:30,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24010566] [2023-08-29 19:13:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:13:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:30,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24010566] [2023-08-29 19:13:30,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24010566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:30,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:30,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:30,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795341236] [2023-08-29 19:13:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:30,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:30,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:30,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 86 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 327.1666666666667) internal successors, (1963), 6 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:30,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:30,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:30,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:31,395 INFO L130 PetriNetUnfolder]: 4798/7446 cut-off events. [2023-08-29 19:13:31,395 INFO L131 PetriNetUnfolder]: For 889/923 co-relation queries the response was YES. [2023-08-29 19:13:31,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15003 conditions, 7446 events. 4798/7446 cut-off events. For 889/923 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 49404 event pairs, 542 based on Foata normal form. 3/6045 useless extension candidates. Maximal degree in co-relation 14997. Up to 2166 conditions per place. [2023-08-29 19:13:31,425 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 124 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2023-08-29 19:13:31,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 173 transitions, 694 flow [2023-08-29 19:13:31,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-08-29 19:13:31,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48495533615420783 [2023-08-29 19:13:31,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-08-29 19:13:31,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-08-29 19:13:31,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:31,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-08-29 19:13:31,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:31,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:31,440 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:31,440 INFO L175 Difference]: Start difference. First operand has 89 places, 86 transitions, 204 flow. Second operand 6 states and 2063 transitions. [2023-08-29 19:13:31,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 173 transitions, 694 flow [2023-08-29 19:13:31,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 173 transitions, 690 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:31,443 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 206 flow [2023-08-29 19:13:31,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=206, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2023-08-29 19:13:31,444 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -35 predicate places. [2023-08-29 19:13:31,444 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 206 flow [2023-08-29 19:13:31,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.1666666666667) internal successors, (1963), 6 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:31,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:31,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:31,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 19:13:31,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:31,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:31,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2011761856, now seen corresponding path program 1 times [2023-08-29 19:13:31,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123247506] [2023-08-29 19:13:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:31,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:13:31,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123247506] [2023-08-29 19:13:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123247506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357764552] [2023-08-29 19:13:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:31,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:31,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 709 [2023-08-29 19:13:31,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:31,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:31,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 709 [2023-08-29 19:13:31,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:32,461 INFO L130 PetriNetUnfolder]: 3165/5774 cut-off events. [2023-08-29 19:13:32,462 INFO L131 PetriNetUnfolder]: For 969/1009 co-relation queries the response was YES. [2023-08-29 19:13:32,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11663 conditions, 5774 events. 3165/5774 cut-off events. For 969/1009 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 41061 event pairs, 806 based on Foata normal form. 0/5059 useless extension candidates. Maximal degree in co-relation 11657. Up to 1954 conditions per place. [2023-08-29 19:13:32,480 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 104 selfloop transitions, 5 changer transitions 0/147 dead transitions. [2023-08-29 19:13:32,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 147 transitions, 580 flow [2023-08-29 19:13:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:32,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2015 transitions. [2023-08-29 19:13:32,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47367183826986364 [2023-08-29 19:13:32,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2015 transitions. [2023-08-29 19:13:32,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2015 transitions. [2023-08-29 19:13:32,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:32,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2015 transitions. [2023-08-29 19:13:32,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.8333333333333) internal successors, (2015), 6 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:32,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:32,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:32,492 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 206 flow. Second operand 6 states and 2015 transitions. [2023-08-29 19:13:32,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 147 transitions, 580 flow [2023-08-29 19:13:32,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 147 transitions, 565 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:13:32,498 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 205 flow [2023-08-29 19:13:32,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2023-08-29 19:13:32,499 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -36 predicate places. [2023-08-29 19:13:32,499 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 205 flow [2023-08-29 19:13:32,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:32,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:32,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 19:13:32,500 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:32,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash -113558436, now seen corresponding path program 1 times [2023-08-29 19:13:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353095852] [2023-08-29 19:13:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:32,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:32,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:32,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353095852] [2023-08-29 19:13:32,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353095852] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:13:32,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612606696] [2023-08-29 19:13:32,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:32,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:13:32,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:13:32,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:13:32,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 19:13:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:32,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 19:13:32,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:13:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:32,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:13:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612606696] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:13:32,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:13:32,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 19:13:32,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523938731] [2023-08-29 19:13:32,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:13:32,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 19:13:32,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:32,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 19:13:32,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-29 19:13:33,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 709 [2023-08-29 19:13:33,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 205 flow. Second operand has 12 states, 12 states have (on average 325.5833333333333) internal successors, (3907), 12 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:33,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:33,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 709 [2023-08-29 19:13:33,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:33,715 INFO L130 PetriNetUnfolder]: 2456/5572 cut-off events. [2023-08-29 19:13:33,715 INFO L131 PetriNetUnfolder]: For 610/705 co-relation queries the response was YES. [2023-08-29 19:13:33,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10102 conditions, 5572 events. 2456/5572 cut-off events. For 610/705 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 47027 event pairs, 1124 based on Foata normal form. 13/4846 useless extension candidates. Maximal degree in co-relation 10096. Up to 2147 conditions per place. [2023-08-29 19:13:33,730 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 94 selfloop transitions, 6 changer transitions 0/146 dead transitions. [2023-08-29 19:13:33,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 146 transitions, 581 flow [2023-08-29 19:13:33,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 19:13:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 19:13:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2360 transitions. [2023-08-29 19:13:33,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4755188394116462 [2023-08-29 19:13:33,735 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2360 transitions. [2023-08-29 19:13:33,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2360 transitions. [2023-08-29 19:13:33,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:33,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2360 transitions. [2023-08-29 19:13:33,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 337.14285714285717) internal successors, (2360), 7 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:33,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 709.0) internal successors, (5672), 8 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:33,743 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 709.0) internal successors, (5672), 8 states have internal predecessors, (5672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:33,743 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 205 flow. Second operand 7 states and 2360 transitions. [2023-08-29 19:13:33,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 146 transitions, 581 flow [2023-08-29 19:13:33,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 146 transitions, 565 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:13:33,749 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 239 flow [2023-08-29 19:13:33,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2023-08-29 19:13:33,752 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -31 predicate places. [2023-08-29 19:13:33,752 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 239 flow [2023-08-29 19:13:33,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 325.5833333333333) internal successors, (3907), 12 states have internal predecessors, (3907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:33,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:33,757 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:33,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 19:13:33,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:13:33,963 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:33,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:33,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1828434466, now seen corresponding path program 2 times [2023-08-29 19:13:33,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:33,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996562699] [2023-08-29 19:13:33,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:33,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:13:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996562699] [2023-08-29 19:13:34,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996562699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:34,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:34,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:34,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351840828] [2023-08-29 19:13:34,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:34,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:34,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:34,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 709 [2023-08-29 19:13:34,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:34,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:34,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 709 [2023-08-29 19:13:34,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:35,009 INFO L130 PetriNetUnfolder]: 3896/7460 cut-off events. [2023-08-29 19:13:35,010 INFO L131 PetriNetUnfolder]: For 1420/1499 co-relation queries the response was YES. [2023-08-29 19:13:35,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14890 conditions, 7460 events. 3896/7460 cut-off events. For 1420/1499 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 59852 event pairs, 1317 based on Foata normal form. 0/6567 useless extension candidates. Maximal degree in co-relation 14881. Up to 2670 conditions per place. [2023-08-29 19:13:35,031 INFO L137 encePairwiseOnDemand]: 702/709 looper letters, 108 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2023-08-29 19:13:35,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 149 transitions, 613 flow [2023-08-29 19:13:35,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2015 transitions. [2023-08-29 19:13:35,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47367183826986364 [2023-08-29 19:13:35,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2015 transitions. [2023-08-29 19:13:35,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2015 transitions. [2023-08-29 19:13:35,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:35,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2015 transitions. [2023-08-29 19:13:35,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.8333333333333) internal successors, (2015), 6 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,043 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,043 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 239 flow. Second operand 6 states and 2015 transitions. [2023-08-29 19:13:35,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 149 transitions, 613 flow [2023-08-29 19:13:35,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 149 transitions, 605 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 19:13:35,045 INFO L231 Difference]: Finished difference. Result has 98 places, 85 transitions, 237 flow [2023-08-29 19:13:35,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=98, PETRI_TRANSITIONS=85} [2023-08-29 19:13:35,046 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -29 predicate places. [2023-08-29 19:13:35,046 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 85 transitions, 237 flow [2023-08-29 19:13:35,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:35,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:35,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 19:13:35,047 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:35,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:35,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2034205084, now seen corresponding path program 1 times [2023-08-29 19:13:35,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:35,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046616272] [2023-08-29 19:13:35,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:35,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:35,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:35,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046616272] [2023-08-29 19:13:35,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046616272] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:13:35,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230101069] [2023-08-29 19:13:35,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:35,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:13:35,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:13:35,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:13:35,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 19:13:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:35,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 19:13:35,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:13:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:35,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:13:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:13:35,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230101069] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 19:13:35,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 19:13:35,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-29 19:13:35,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366557956] [2023-08-29 19:13:35,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:35,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 19:13:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 19:13:35,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:13:35,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 709 [2023-08-29 19:13:35,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 328.6) internal successors, (1643), 5 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:35,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 709 [2023-08-29 19:13:35,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:35,647 INFO L130 PetriNetUnfolder]: 2248/5020 cut-off events. [2023-08-29 19:13:35,647 INFO L131 PetriNetUnfolder]: For 862/999 co-relation queries the response was YES. [2023-08-29 19:13:35,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9839 conditions, 5020 events. 2248/5020 cut-off events. For 862/999 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 39812 event pairs, 885 based on Foata normal form. 82/4660 useless extension candidates. Maximal degree in co-relation 9829. Up to 2134 conditions per place. [2023-08-29 19:13:35,666 INFO L137 encePairwiseOnDemand]: 703/709 looper letters, 55 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2023-08-29 19:13:35,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 418 flow [2023-08-29 19:13:35,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 19:13:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 19:13:35,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1682 transitions. [2023-08-29 19:13:35,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4744710860366714 [2023-08-29 19:13:35,670 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1682 transitions. [2023-08-29 19:13:35,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1682 transitions. [2023-08-29 19:13:35,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:35,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1682 transitions. [2023-08-29 19:13:35,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 336.4) internal successors, (1682), 5 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,676 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 709.0) internal successors, (4254), 6 states have internal predecessors, (4254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,676 INFO L175 Difference]: Start difference. First operand has 98 places, 85 transitions, 237 flow. Second operand 5 states and 1682 transitions. [2023-08-29 19:13:35,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 418 flow [2023-08-29 19:13:35,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 105 transitions, 406 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:13:35,679 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 250 flow [2023-08-29 19:13:35,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2023-08-29 19:13:35,680 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-08-29 19:13:35,680 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 250 flow [2023-08-29 19:13:35,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 328.6) internal successors, (1643), 5 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:35,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:35,681 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:35,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 19:13:35,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-29 19:13:35,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:35,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1254627050, now seen corresponding path program 1 times [2023-08-29 19:13:35,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:35,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750865968] [2023-08-29 19:13:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:35,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:13:36,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:36,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750865968] [2023-08-29 19:13:36,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750865968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:36,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:36,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:36,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067369573] [2023-08-29 19:13:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:36,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:36,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:36,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:36,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:36,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:36,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:36,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:36,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:36,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:36,976 INFO L130 PetriNetUnfolder]: 2244/4894 cut-off events. [2023-08-29 19:13:36,976 INFO L131 PetriNetUnfolder]: For 1573/1983 co-relation queries the response was YES. [2023-08-29 19:13:36,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10022 conditions, 4894 events. 2244/4894 cut-off events. For 1573/1983 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 38881 event pairs, 1287 based on Foata normal form. 302/4812 useless extension candidates. Maximal degree in co-relation 10010. Up to 2697 conditions per place. [2023-08-29 19:13:37,001 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 88 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2023-08-29 19:13:37,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 572 flow [2023-08-29 19:13:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:37,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-29 19:13:37,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774330042313117 [2023-08-29 19:13:37,006 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-29 19:13:37,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-29 19:13:37,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:37,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-29 19:13:37,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,014 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,014 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 250 flow. Second operand 6 states and 2031 transitions. [2023-08-29 19:13:37,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 572 flow [2023-08-29 19:13:37,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 133 transitions, 566 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 19:13:37,018 INFO L231 Difference]: Finished difference. Result has 100 places, 85 transitions, 250 flow [2023-08-29 19:13:37,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=100, PETRI_TRANSITIONS=85} [2023-08-29 19:13:37,018 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-08-29 19:13:37,018 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 250 flow [2023-08-29 19:13:37,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:13:37,019 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 19:13:37,020 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 19:13:37,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:13:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash -11730671, now seen corresponding path program 1 times [2023-08-29 19:13:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:13:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748763416] [2023-08-29 19:13:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:13:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:13:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:13:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:13:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:13:37,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748763416] [2023-08-29 19:13:37,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748763416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:13:37,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:13:37,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:13:37,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757942076] [2023-08-29 19:13:37,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:13:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:13:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:13:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:13:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:13:37,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 709 [2023-08-29 19:13:37,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:13:37,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 709 [2023-08-29 19:13:37,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:13:37,947 INFO L130 PetriNetUnfolder]: 2016/4660 cut-off events. [2023-08-29 19:13:37,947 INFO L131 PetriNetUnfolder]: For 1321/1719 co-relation queries the response was YES. [2023-08-29 19:13:37,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9369 conditions, 4660 events. 2016/4660 cut-off events. For 1321/1719 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 38031 event pairs, 1335 based on Foata normal form. 290/4581 useless extension candidates. Maximal degree in co-relation 9357. Up to 2802 conditions per place. [2023-08-29 19:13:37,958 INFO L137 encePairwiseOnDemand]: 704/709 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2023-08-29 19:13:37,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 96 transitions, 392 flow [2023-08-29 19:13:37,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:13:37,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:13:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1999 transitions. [2023-08-29 19:13:37,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4699106723084156 [2023-08-29 19:13:37,962 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1999 transitions. [2023-08-29 19:13:37,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1999 transitions. [2023-08-29 19:13:37,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:13:37,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1999 transitions. [2023-08-29 19:13:37,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,969 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 709.0) internal successors, (4963), 7 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,969 INFO L175 Difference]: Start difference. First operand has 100 places, 85 transitions, 250 flow. Second operand 6 states and 1999 transitions. [2023-08-29 19:13:37,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 96 transitions, 392 flow [2023-08-29 19:13:37,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 385 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:13:37,973 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2023-08-29 19:13:37,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2023-08-29 19:13:37,974 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-08-29 19:13:37,974 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2023-08-29 19:13:37,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:13:37,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (78 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2023-08-29 19:13:37,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2023-08-29 19:13:37,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2023-08-29 19:13:37,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2023-08-29 19:13:37,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2023-08-29 19:13:37,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 79 remaining) [2023-08-29 19:13:37,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2023-08-29 19:13:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2023-08-29 19:13:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2023-08-29 19:13:37,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2023-08-29 19:13:37,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2023-08-29 19:13:37,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2023-08-29 19:13:37,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2023-08-29 19:13:37,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2023-08-29 19:13:37,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2023-08-29 19:13:37,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 19:13:37,986 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:13:37,990 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:13:37,990 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:13:37,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:13:37 BasicIcfg [2023-08-29 19:13:37,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:13:37,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:13:37,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:13:37,994 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:13:37,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:18" (3/4) ... [2023-08-29 19:13:37,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:13:37,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:13:37,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:13:37,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 19:13:38,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-29 19:13:38,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:13:38,004 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:13:38,005 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:13:38,029 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:13:38,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:13:38,030 INFO L158 Benchmark]: Toolchain (without parser) took 20410.96ms. Allocated memory was 60.8MB in the beginning and 1.6GB in the end (delta: 1.6GB). Free memory was 39.0MB in the beginning and 701.0MB in the end (delta: -662.0MB). Peak memory consumption was 911.1MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,030 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:13:38,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.90ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 25.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.21ms. Allocated memory is still 60.8MB. Free memory was 25.7MB in the beginning and 39.8MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,030 INFO L158 Benchmark]: Boogie Preprocessor took 36.54ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 36.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,031 INFO L158 Benchmark]: RCFGBuilder took 878.61ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 48.8MB in the end (delta: -12.0MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,031 INFO L158 Benchmark]: TraceAbstraction took 19112.72ms. Allocated memory was 77.6MB in the beginning and 1.6GB in the end (delta: 1.6GB). Free memory was 47.9MB in the beginning and 705.2MB in the end (delta: -657.3MB). Peak memory consumption was 898.4MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,031 INFO L158 Benchmark]: Witness Printer took 35.28ms. Allocated memory is still 1.6GB. Free memory was 705.2MB in the beginning and 701.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:13:38,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.90ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 25.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.21ms. Allocated memory is still 60.8MB. Free memory was 25.7MB in the beginning and 39.8MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.54ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 36.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 878.61ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 48.8MB in the end (delta: -12.0MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19112.72ms. Allocated memory was 77.6MB in the beginning and 1.6GB in the end (delta: 1.6GB). Free memory was 47.9MB in the beginning and 705.2MB in the end (delta: -657.3MB). Peak memory consumption was 898.4MB. Max. memory is 16.1GB. * Witness Printer took 35.28ms. Allocated memory is still 1.6GB. Free memory was 705.2MB in the beginning and 701.0MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 337 PlacesBefore, 127 PlacesAfterwards, 345 TransitionsBefore, 127 TransitionsAfterwards, 26082 CoEnabledTransitionPairs, 9 FixpointIterations, 157 TrivialSequentialCompositions, 131 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 29 ConcurrentYvCompositions, 8 ChoiceCompositions, 340 TotalNumberOfCompositions, 134949 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33598, independent: 32056, independent conditional: 0, independent unconditional: 32056, dependent: 1542, dependent conditional: 0, dependent unconditional: 1542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13265, independent: 13076, independent conditional: 0, independent unconditional: 13076, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33598, independent: 18980, independent conditional: 0, independent unconditional: 18980, dependent: 1353, dependent conditional: 0, dependent unconditional: 1353, unknown: 13265, unknown conditional: 0, unknown unconditional: 13265] , Statistics on independence cache: Total cache size (in pairs): 1233, Positive cache size: 1107, Positive conditional cache size: 0, Positive unconditional cache size: 1107, Negative cache size: 126, Negative conditional cache size: 0, Negative unconditional cache size: 126, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: 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: 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: 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: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: 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: 91]: 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: 91]: 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: 91]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 515 locations, 79 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: 19.0s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2085 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1437 mSDsluCounter, 433 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 349 mSDsCounter, 612 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4308 IncrementalHoareTripleChecker+Invalid, 4920 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 612 mSolverCounterUnsat, 84 mSDtfsCounter, 4308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, InterpolantAutomatonStates: 56, 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, 1.5s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 896 SizeOfPredicates, 11 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 12/17 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 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 19:13:38,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE