./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --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 [2023-08-30 23:23:47,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:23:47,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:23:47,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:23:47,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:23:47,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:23:47,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:23:47,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:23:47,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:23:47,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:23:47,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:23:47,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:23:47,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:23:47,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:23:47,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:23:47,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:23:47,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:23:47,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:23:47,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:23:47,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:23:48,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:23:48,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:23:48,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:23:48,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:23:48,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:23:48,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:23:48,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:23:48,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:23:48,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:23:48,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:23:48,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:23:48,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:23:48,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:23:48,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:23:48,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:23:48,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:23:48,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:23:48,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:23:48,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:23:48,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:23:48,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:23:48,026 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:23:48,058 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:23:48,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:23:48,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:23:48,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:23:48,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:23:48,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:23:48,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:23:48,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:23:48,061 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:23:48,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:23:48,062 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:23:48,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:23:48,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:23:48,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:23:48,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:23:48,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:23:48,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:23:48,064 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:23:48,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:23:48,065 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:23:48,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:23:48,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:23:48,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:23:48,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:23:48,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:23:48,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:23:48,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:23:48,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:23:48,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:23:48,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:23:48,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:23:48,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:23:48,073 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:23:48,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:23:48,073 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:23:48,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:23:48,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:23:48,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:23:48,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:23:48,378 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:23:48,378 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:23:48,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-08-30 23:23:49,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:23:49,968 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:23:49,972 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-08-30 23:23:49,999 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8723ad08/34bd5e5f3e0e4547aadf9454517940d9/FLAGca41c29c8 [2023-08-30 23:23:50,012 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8723ad08/34bd5e5f3e0e4547aadf9454517940d9 [2023-08-30 23:23:50,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:23:50,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:23:50,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:23:50,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:23:50,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:23:50,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:50,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0a896d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50, skipping insertion in model container [2023-08-30 23:23:50,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:50,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:23:50,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:23:50,579 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-08-30 23:23:50,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:23:50,634 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:23:50,739 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-08-30 23:23:50,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:23:50,886 WARN L667 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:23:50,892 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:23:50,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50 WrapperNode [2023-08-30 23:23:50,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:23:50,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:23:50,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:23:50,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:23:50,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:50,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:50,999 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 459 [2023-08-30 23:23:51,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:23:51,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:23:51,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:23:51,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:23:51,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:23:51,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:23:51,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:23:51,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:23:51,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (1/1) ... [2023-08-30 23:23:51,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:23:51,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:23:51,129 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) [2023-08-30 23:23:51,131 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 [2023-08-30 23:23:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-08-30 23:23:51,160 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-08-30 23:23:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:23:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:23:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:23:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:23:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:23:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:23:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-08-30 23:23:51,163 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-08-30 23:23:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:23:51,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:23:51,165 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 23:23:51,330 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:23:51,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:23:51,947 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:23:51,961 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:23:51,965 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-08-30 23:23:51,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:23:51 BoogieIcfgContainer [2023-08-30 23:23:51,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:23:51,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:23:51,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:23:51,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:23:51,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:23:50" (1/3) ... [2023-08-30 23:23:51,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c430b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:23:51, skipping insertion in model container [2023-08-30 23:23:51,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:50" (2/3) ... [2023-08-30 23:23:51,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c430b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:23:51, skipping insertion in model container [2023-08-30 23:23:51,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:23:51" (3/3) ... [2023-08-30 23:23:51,979 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-08-30 23:23:51,986 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:23:51,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:23:51,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 23:23:51,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:23:52,152 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-30 23:23:52,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,467 INFO L130 PetriNetUnfolder]: 109/1010 cut-off events. [2023-08-30 23:23:52,467 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 23:23:52,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 1010 events. 109/1010 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5984 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 534. Up to 16 conditions per place. [2023-08-30 23:23:52,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,507 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:23:52,530 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 467 transitions, 956 flow [2023-08-30 23:23:52,752 INFO L130 PetriNetUnfolder]: 109/1010 cut-off events. [2023-08-30 23:23:52,752 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 23:23:52,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 1010 events. 109/1010 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5984 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 534. Up to 16 conditions per place. [2023-08-30 23:23:52,830 INFO L119 LiptonReduction]: Number of co-enabled transitions 103794 [2023-08-30 23:24:19,769 WARN L222 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:24:30,265 WARN L222 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:24:42,536 WARN L222 SmtUtils]: Spent 12.27s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:24:52,624 WARN L222 SmtUtils]: Spent 10.09s on a formula simplification that was a NOOP. DAG size: 185 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:26:07,710 WARN L222 SmtUtils]: Spent 1.23m on a formula simplification. DAG size of input: 309 DAG size of output: 274 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:26:32,583 WARN L222 SmtUtils]: Spent 24.87s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:27:42,060 WARN L222 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 322 DAG size of output: 282 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:28:15,033 WARN L222 SmtUtils]: Spent 32.97s on a formula simplification that was a NOOP. DAG size: 269 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:28:15,054 INFO L134 LiptonReduction]: Checked pairs total: 242585 [2023-08-30 23:28:15,054 INFO L136 LiptonReduction]: Total number of compositions: 447 [2023-08-30 23:28:15,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:28:15,071 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;@78ec6838, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:28:15,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-30 23:28:15,080 INFO L130 PetriNetUnfolder]: 7/58 cut-off events. [2023-08-30 23:28:15,081 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:28:15,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:28:15,082 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-08-30 23:28:15,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-30 23:28:15,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:28:15,087 INFO L85 PathProgramCache]: Analyzing trace with hash 654676923, now seen corresponding path program 1 times [2023-08-30 23:28:15,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:28:15,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006976043] [2023-08-30 23:28:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:28:15,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:28:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 23:28:15,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 23:28:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 23:28:15,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 23:28:15,455 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 23:28:15,456 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-30 23:28:15,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-30 23:28:15,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-30 23:28:15,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-08-30 23:28:15,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 23:28:15,463 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 23:28:15,468 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 23:28:15,468 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 23:28:15,576 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-08-30 23:28:15,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:16,896 INFO L130 PetriNetUnfolder]: 384/3284 cut-off events. [2023-08-30 23:28:16,896 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 23:28:16,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 3284 events. 384/3284 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26182 event pairs, 2 based on Foata normal form. 0/2907 useless extension candidates. Maximal degree in co-relation 1846. Up to 64 conditions per place. [2023-08-30 23:28:16,963 INFO L82 GeneralOperation]: Start removeDead. Operand has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:17,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:17,010 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:28:17,011 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:17,012 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:17,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 650 places, 719 transitions, 1486 flow [2023-08-30 23:28:18,318 INFO L130 PetriNetUnfolder]: 384/3284 cut-off events. [2023-08-30 23:28:18,318 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2023-08-30 23:28:18,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 3284 events. 384/3284 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26182 event pairs, 2 based on Foata normal form. 0/2907 useless extension candidates. Maximal degree in co-relation 1846. Up to 64 conditions per place. [2023-08-30 23:28:18,631 INFO L119 LiptonReduction]: Number of co-enabled transitions 333516 [2023-08-30 23:28:43,097 WARN L222 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:28:49,080 WARN L222 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:28:56,110 WARN L222 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:29:02,545 WARN L222 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:29:59,010 WARN L222 SmtUtils]: Spent 56.21s on a formula simplification that was a NOOP. DAG size: 219 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:30:46,648 WARN L222 SmtUtils]: Spent 47.64s on a formula simplification that was a NOOP. DAG size: 215 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:31:56,738 WARN L222 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 225 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:32:24,189 WARN L222 SmtUtils]: Spent 27.45s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:33:22,966 WARN L222 SmtUtils]: Spent 57.97s on a formula simplification. DAG size of input: 272 DAG size of output: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:33:54,797 WARN L222 SmtUtils]: Spent 31.83s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:34:51,187 WARN L222 SmtUtils]: Spent 56.39s on a formula simplification. DAG size of input: 281 DAG size of output: 274 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:35:17,001 WARN L222 SmtUtils]: Spent 25.81s on a formula simplification that was a NOOP. DAG size: 269 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:35:17,015 INFO L134 LiptonReduction]: Checked pairs total: 767633 [2023-08-30 23:35:17,015 INFO L136 LiptonReduction]: Total number of compositions: 680 [2023-08-30 23:35:17,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:35:17,018 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;@78ec6838, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:35:17,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 23:35:17,036 INFO L130 PetriNetUnfolder]: 33/204 cut-off events. [2023-08-30 23:35:17,036 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 23:35:17,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:35:17,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:35:17,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:35:17,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:35:17,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1659459678, now seen corresponding path program 1 times [2023-08-30 23:35:17,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:35:17,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897937438] [2023-08-30 23:35:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:35:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:35:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:35:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:35:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:35:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897937438] [2023-08-30 23:35:17,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897937438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:35:17,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:35:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:35:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141289081] [2023-08-30 23:35:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:35:17,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:35:17,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:35:17,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:35:17,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:35:17,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 1399 [2023-08-30 23:35:17,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 226 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:35:17,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:35:17,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 1399 [2023-08-30 23:35:17,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15