/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:04:40,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:04:40,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:04:40,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 07:04:40,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:04:40,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:04:40,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:04:40,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:04:40,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:04:40,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:04:40,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:04:40,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:04:40,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:04:40,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:04:40,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:04:40,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:04:40,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 07:04:40,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:04:40,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:04:40,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:04:40,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:04:40,883 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:04:40,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:04:40,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:04:40,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:04:40,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:04:40,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:04:40,884 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:04:40,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:04:40,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:04:40,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:40,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:04:40,886 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:04:41,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:04:41,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:04:41,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:04:41,078 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:04:41,079 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:04:41,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-01-28 07:04:42,043 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:04:42,271 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:04:42,271 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2023-01-28 07:04:42,284 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcaf77081/096ac9af8c5e40b88b6dec0307c41a41/FLAG40b720c1e [2023-01-28 07:04:42,294 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcaf77081/096ac9af8c5e40b88b6dec0307c41a41 [2023-01-28 07:04:42,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:04:42,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:04:42,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:42,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:04:42,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:04:42,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:42,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399e3716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42, skipping insertion in model container [2023-01-28 07:04:42,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:42,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:04:42,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:04:42,746 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-01-28 07:04:42,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:42,773 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:04:42,826 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2023-01-28 07:04:42,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:42,924 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:04:42,925 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:04:42,930 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:04:42,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42 WrapperNode [2023-01-28 07:04:42,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:42,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:42,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:04:42,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:04:42,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:42,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:42,992 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-01-28 07:04:42,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:42,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:04:42,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:04:42,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:04:42,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:42,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:04:43,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:04:43,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:04:43,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:04:43,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (1/1) ... [2023-01-28 07:04:43,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:43,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:04:43,066 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) [2023-01-28 07:04:43,077 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 [2023-01-28 07:04:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 07:04:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:04:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 07:04:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:04:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:04:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:04:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:04:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:04:43,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:04:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:04:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 07:04:43,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 07:04:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:04:43,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:04:43,100 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:04:43,354 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:04:43,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:04:43,509 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:04:43,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:04:43,524 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:04:43,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:43 BoogieIcfgContainer [2023-01-28 07:04:43,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:04:43,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:04:43,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:04:43,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:04:43,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:04:42" (1/3) ... [2023-01-28 07:04:43,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917bbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:43, skipping insertion in model container [2023-01-28 07:04:43,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:42" (2/3) ... [2023-01-28 07:04:43,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917bbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:43, skipping insertion in model container [2023-01-28 07:04:43,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:43" (3/3) ... [2023-01-28 07:04:43,531 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2023-01-28 07:04:43,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:04:43,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-28 07:04:43,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:04:43,596 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:04:43,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 95 transitions, 198 flow [2023-01-28 07:04:43,657 INFO L130 PetriNetUnfolder]: 4/106 cut-off events. [2023-01-28 07:04:43,657 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:04:43,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 106 events. 4/106 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2023-01-28 07:04:43,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 95 transitions, 198 flow [2023-01-28 07:04:43,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 162 flow [2023-01-28 07:04:43,668 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:04:43,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 162 flow [2023-01-28 07:04:43,685 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 162 flow [2023-01-28 07:04:43,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 162 flow [2023-01-28 07:04:43,696 INFO L130 PetriNetUnfolder]: 1/78 cut-off events. [2023-01-28 07:04:43,696 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:04:43,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 1/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2023-01-28 07:04:43,697 INFO L119 LiptonReduction]: Number of co-enabled transitions 182 [2023-01-28 07:04:45,975 INFO L134 LiptonReduction]: Checked pairs total: 239 [2023-01-28 07:04:45,975 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-01-28 07:04:45,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:04:45,990 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=false, 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;@3fe025de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:04:45,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-28 07:04:45,991 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-28 07:04:45,991 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:04:45,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:04:45,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-28 07:04:45,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:04:45,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:04:45,995 INFO L85 PathProgramCache]: Analyzing trace with hash 353, now seen corresponding path program 1 times [2023-01-28 07:04:46,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:04:46,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399609532] [2023-01-28 07:04:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:04:46,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:04:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:04:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:04:46,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:04:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399609532] [2023-01-28 07:04:46,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399609532] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:04:46,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:04:46,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-28 07:04:46,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910448754] [2023-01-28 07:04:46,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:04:46,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:04:46,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:04:46,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:04:46,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:04:46,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 171 [2023-01-28 07:04:46,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-01-28 07:04:46,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:04:46,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 171 [2023-01-28 07:04:46,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:04:46,211 INFO L130 PetriNetUnfolder]: 3/13 cut-off events. [2023-01-28 07:04:46,212 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:04:46,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 13 events. 3/13 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 3 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 20. Up to 14 conditions per place. [2023-01-28 07:04:46,213 INFO L137 encePairwiseOnDemand]: 168/171 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-01-28 07:04:46,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2023-01-28 07:04:46,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:04:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:04:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 180 transitions. [2023-01-28 07:04:46,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-01-28 07:04:46,224 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 180 transitions. [2023-01-28 07:04:46,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 180 transitions. [2023-01-28 07:04:46,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:04:46,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 180 transitions. [2023-01-28 07:04:46,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 90.0) internal successors, (180), 2 states have internal predecessors, (180), 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) [2023-01-28 07:04:46,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2023-01-28 07:04:46,235 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2023-01-28 07:04:46,237 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 180 transitions. [2023-01-28 07:04:46,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2023-01-28 07:04:46,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:04:46,240 INFO L231 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2023-01-28 07:04:46,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=11, PETRI_PLACES=10, PETRI_TRANSITIONS=5} [2023-01-28 07:04:46,244 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-01-28 07:04:46,245 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2023-01-28 07:04:46,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-01-28 07:04:46,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:04:46,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 07:04:46,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:04:46,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:04:46,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:04:46,248 INFO L85 PathProgramCache]: Analyzing trace with hash 10822535, now seen corresponding path program 1 times [2023-01-28 07:04:46,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:04:46,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791595702] [2023-01-28 07:04:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:04:46,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:04:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:04:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:04:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:04:46,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791595702] [2023-01-28 07:04:46,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791595702] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:04:46,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:04:46,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:04:46,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351549173] [2023-01-28 07:04:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:04:46,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:04:46,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:04:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:04:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:04:46,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 171 [2023-01-28 07:04:46,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 5 transitions, 11 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-01-28 07:04:46,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:04:46,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 171 [2023-01-28 07:04:46,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:04:46,460 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-01-28 07:04:46,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:04:46,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-01-28 07:04:46,461 INFO L137 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2023-01-28 07:04:46,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2023-01-28 07:04:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:04:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:04:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-01-28 07:04:46,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4580896686159844 [2023-01-28 07:04:46,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-01-28 07:04:46,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-01-28 07:04:46,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:04:46,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-01-28 07:04:46,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2023-01-28 07:04:46,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2023-01-28 07:04:46,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2023-01-28 07:04:46,472 INFO L175 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 235 transitions. [2023-01-28 07:04:46,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2023-01-28 07:04:46,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:04:46,472 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2023-01-28 07:04:46,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2023-01-28 07:04:46,473 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-01-28 07:04:46,473 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2023-01-28 07:04:46,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-01-28 07:04:46,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:04:46,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 07:04:46,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:04:46,475 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-28 07:04:46,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:04:46,477 INFO L85 PathProgramCache]: Analyzing trace with hash 335502616, now seen corresponding path program 1 times [2023-01-28 07:04:46,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:04:46,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303681443] [2023-01-28 07:04:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:04:46,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:04:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:04:46,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:04:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:04:46,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:04:46,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:04:46,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-28 07:04:46,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-28 07:04:46,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-01-28 07:04:46,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-01-28 07:04:46,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-28 07:04:46,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:04:46,563 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 07:04:46,566 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:04:46,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:04:46,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:04:46 BasicIcfg [2023-01-28 07:04:46,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:04:46,588 INFO L158 Benchmark]: Toolchain (without parser) took 4290.70ms. Allocated memory is still 398.5MB. Free memory was 355.5MB in the beginning and 149.5MB in the end (delta: 206.0MB). Peak memory consumption was 206.4MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,588 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:04:46,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.57ms. Allocated memory is still 398.5MB. Free memory was 355.2MB in the beginning and 361.2MB in the end (delta: -6.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.33ms. Allocated memory is still 398.5MB. Free memory was 361.2MB in the beginning and 358.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,592 INFO L158 Benchmark]: Boogie Preprocessor took 46.75ms. Allocated memory is still 398.5MB. Free memory was 358.2MB in the beginning and 355.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,593 INFO L158 Benchmark]: RCFGBuilder took 485.79ms. Allocated memory is still 398.5MB. Free memory was 355.4MB in the beginning and 333.1MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,593 INFO L158 Benchmark]: TraceAbstraction took 3060.20ms. Allocated memory is still 398.5MB. Free memory was 332.3MB in the beginning and 149.5MB in the end (delta: 182.8MB). Peak memory consumption was 182.4MB. Max. memory is 16.0GB. [2023-01-28 07:04:46,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 255.9MB. Free memory is still 213.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 631.57ms. Allocated memory is still 398.5MB. Free memory was 355.2MB in the beginning and 361.2MB in the end (delta: -6.0MB). Peak memory consumption was 55.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.33ms. Allocated memory is still 398.5MB. Free memory was 361.2MB in the beginning and 358.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.75ms. Allocated memory is still 398.5MB. Free memory was 358.2MB in the beginning and 355.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 485.79ms. Allocated memory is still 398.5MB. Free memory was 355.4MB in the beginning and 333.1MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 3060.20ms. Allocated memory is still 398.5MB. Free memory was 332.3MB in the beginning and 149.5MB in the end (delta: 182.8MB). Peak memory consumption was 182.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 81 PlacesBefore, 14 PlacesAfterwards, 78 TransitionsBefore, 10 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 114, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 202, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 114, unknown conditional: 0, unknown unconditional: 114] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 100 locations, 5 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: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:04:46,608 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...