/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 18:22:08,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 18:22:08,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 18:22:08,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 18:22:08,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 18:22:08,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 18:22:08,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 18:22:08,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 18:22:08,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 18:22:08,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 18:22:08,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 18:22:08,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 18:22:08,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 18:22:08,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 18:22:09,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 18:22:09,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 18:22:09,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 18:22:09,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 18:22:09,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 18:22:09,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 18:22:09,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 18:22:09,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 18:22:09,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 18:22:09,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 18:22:09,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 18:22:09,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 18:22:09,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 18:22:09,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 18:22:09,029 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 [2023-01-27 18:22:09,055 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 18:22:09,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 18:22:09,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 18:22:09,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 18:22:09,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 18:22:09,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 18:22:09,058 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 18:22:09,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 18:22:09,058 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 18:22:09,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 18:22:09,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 18:22:09,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 18:22:09,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 18:22:09,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 18:22:09,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 18:22:09,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:09,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 18:22:09,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 18:22:09,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 18:22:09,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 18:22:09,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 18:22:09,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 18:22:09,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 18:22:09,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 18:22:09,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 18:22:09,315 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 18:22:09,315 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 18:22:09,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-01-27 18:22:10,540 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 18:22:10,803 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 18:22:10,803 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-01-27 18:22:10,820 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ffa1cbf/e0bea018e1964f3e864fde15199031c7/FLAG4cf9505ad [2023-01-27 18:22:10,833 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3ffa1cbf/e0bea018e1964f3e864fde15199031c7 [2023-01-27 18:22:10,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 18:22:10,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 18:22:10,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:10,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 18:22:10,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 18:22:10,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:10" (1/1) ... [2023-01-27 18:22:10,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21258b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:10, skipping insertion in model container [2023-01-27 18:22:10,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 06:22:10" (1/1) ... [2023-01-27 18:22:10,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 18:22:10,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 18:22:11,358 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_3-join.i[76153,76166] [2023-01-27 18:22:11,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:11,392 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 18:22:11,430 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_3-join.i[76153,76166] [2023-01-27 18:22:11,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 18:22:11,537 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:11,537 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 18:22:11,543 INFO L208 MainTranslator]: Completed translation [2023-01-27 18:22:11,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11 WrapperNode [2023-01-27 18:22:11,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 18:22:11,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:11,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 18:22:11,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 18:22:11,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,636 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2023-01-27 18:22:11,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 18:22:11,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 18:22:11,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 18:22:11,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 18:22:11,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 18:22:11,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 18:22:11,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 18:22:11,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 18:22:11,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (1/1) ... [2023-01-27 18:22:11,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 18:22:11,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 18:22:11,735 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) [2023-01-27 18:22:11,737 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 [2023-01-27 18:22:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 18:22:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 18:22:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 18:22:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 18:22:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 18:22:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 18:22:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 18:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 18:22:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 18:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 18:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 18:22:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 18:22:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 18:22:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 18:22:11,774 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 18:22:12,080 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 18:22:12,082 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 18:22:12,208 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 18:22:12,239 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 18:22:12,239 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 18:22:12,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:12 BoogieIcfgContainer [2023-01-27 18:22:12,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 18:22:12,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 18:22:12,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 18:22:12,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 18:22:12,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 06:22:10" (1/3) ... [2023-01-27 18:22:12,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6f83aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:12, skipping insertion in model container [2023-01-27 18:22:12,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 06:22:11" (2/3) ... [2023-01-27 18:22:12,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a6f83aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 06:22:12, skipping insertion in model container [2023-01-27 18:22:12,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 06:22:12" (3/3) ... [2023-01-27 18:22:12,254 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-01-27 18:22:12,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 18:22:12,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-01-27 18:22:12,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 18:22:12,302 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 18:22:12,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 95 transitions, 198 flow [2023-01-27 18:22:12,366 INFO L130 PetriNetUnfolder]: 4/109 cut-off events. [2023-01-27 18:22:12,366 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:22:12,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 109 events. 4/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2023-01-27 18:22:12,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 95 transitions, 198 flow [2023-01-27 18:22:12,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 170 flow [2023-01-27 18:22:12,375 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 18:22:12,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 82 transitions, 170 flow [2023-01-27 18:22:12,384 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 82 transitions, 170 flow [2023-01-27 18:22:12,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 170 flow [2023-01-27 18:22:12,401 INFO L130 PetriNetUnfolder]: 2/92 cut-off events. [2023-01-27 18:22:12,401 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:22:12,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 2/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-01-27 18:22:12,403 INFO L119 LiptonReduction]: Number of co-enabled transitions 182 [2023-01-27 18:22:15,323 INFO L134 LiptonReduction]: Checked pairs total: 227 [2023-01-27 18:22:15,323 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-01-27 18:22:15,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 18:22:15,339 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;@5d64b4c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 18:22:15,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-01-27 18:22:15,341 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-27 18:22:15,341 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:22:15,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:15,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-27 18:22:15,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-27 18:22:15,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 369, now seen corresponding path program 1 times [2023-01-27 18:22:15,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:15,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482654468] [2023-01-27 18:22:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:15,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:15,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:15,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482654468] [2023-01-27 18:22:15,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482654468] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:15,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:15,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-27 18:22:15,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641608654] [2023-01-27 18:22:15,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:15,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 18:22:15,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 18:22:15,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 18:22:15,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 189 [2023-01-27 18:22:15,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 11 transitions, 28 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) [2023-01-27 18:22:15,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:15,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 189 [2023-01-27 18:22:15,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:15,587 INFO L130 PetriNetUnfolder]: 3/13 cut-off events. [2023-01-27 18:22:15,588 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 18:22:15,588 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. [2023-01-27 18:22:15,589 INFO L137 encePairwiseOnDemand]: 185/189 looper letters, 5 selfloop transitions, 0 changer transitions 2/7 dead transitions. [2023-01-27 18:22:15,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 34 flow [2023-01-27 18:22:15,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 18:22:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 18:22:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 181 transitions. [2023-01-27 18:22:15,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47883597883597884 [2023-01-27 18:22:15,603 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 181 transitions. [2023-01-27 18:22:15,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 181 transitions. [2023-01-27 18:22:15,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:15,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 181 transitions. [2023-01-27 18:22:15,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 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) [2023-01-27 18:22:15,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2023-01-27 18:22:15,619 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2023-01-27 18:22:15,621 INFO L175 Difference]: Start difference. First operand has 14 places, 11 transitions, 28 flow. Second operand 2 states and 181 transitions. [2023-01-27 18:22:15,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 34 flow [2023-01-27 18:22:15,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 30 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 18:22:15,624 INFO L231 Difference]: Finished difference. Result has 10 places, 5 transitions, 11 flow [2023-01-27 18:22:15,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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} [2023-01-27 18:22:15,629 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -4 predicate places. [2023-01-27 18:22:15,629 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 5 transitions, 11 flow [2023-01-27 18:22:15,629 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) [2023-01-27 18:22:15,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:15,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-27 18:22:15,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 18:22:15,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-27 18:22:15,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:15,631 INFO L85 PathProgramCache]: Analyzing trace with hash 11300175, now seen corresponding path program 1 times [2023-01-27 18:22:15,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:15,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144201360] [2023-01-27 18:22:15,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:15,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 18:22:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 18:22:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 18:22:15,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144201360] [2023-01-27 18:22:15,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144201360] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 18:22:15,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 18:22:15,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 18:22:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019393027] [2023-01-27 18:22:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 18:22:15,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 18:22:15,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 18:22:15,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 18:22:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 18:22:15,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 189 [2023-01-27 18:22:15,873 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) [2023-01-27 18:22:15,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 18:22:15,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 189 [2023-01-27 18:22:15,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 18:22:15,888 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-01-27 18:22:15,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 18:22:15,888 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. [2023-01-27 18:22:15,889 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 3 selfloop transitions, 2 changer transitions 1/6 dead transitions. [2023-01-27 18:22:15,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 25 flow [2023-01-27 18:22:15,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 18:22:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 18:22:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-01-27 18:22:15,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4144620811287478 [2023-01-27 18:22:15,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-01-27 18:22:15,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-01-27 18:22:15,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 18:22:15,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-01-27 18:22:15,899 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) [2023-01-27 18:22:15,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2023-01-27 18:22:15,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2023-01-27 18:22:15,900 INFO L175 Difference]: Start difference. First operand has 10 places, 5 transitions, 11 flow. Second operand 3 states and 235 transitions. [2023-01-27 18:22:15,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 25 flow [2023-01-27 18:22:15,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 18:22:15,901 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2023-01-27 18:22:15,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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} [2023-01-27 18:22:15,903 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -3 predicate places. [2023-01-27 18:22:15,903 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 19 flow [2023-01-27 18:22:15,903 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) [2023-01-27 18:22:15,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 18:22:15,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 18:22:15,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 18:22:15,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-01-27 18:22:15,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 18:22:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash 350308921, now seen corresponding path program 1 times [2023-01-27 18:22:15,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 18:22:15,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413690419] [2023-01-27 18:22:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 18:22:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 18:22:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:15,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 18:22:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 18:22:15,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 18:22:15,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 18:22:15,974 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-01-27 18:22:15,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-01-27 18:22:15,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-01-27 18:22:15,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-01-27 18:22:15,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-01-27 18:22:15,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 18:22:15,984 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-27 18:22:15,990 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 18:22:15,990 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 18:22:16,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 06:22:16 BasicIcfg [2023-01-27 18:22:16,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 18:22:16,021 INFO L158 Benchmark]: Toolchain (without parser) took 5184.12ms. Allocated memory is still 532.7MB. Free memory was 475.6MB in the beginning and 338.7MB in the end (delta: 137.0MB). Peak memory consumption was 139.5MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,021 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 299.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 18:22:16,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 706.82ms. Allocated memory is still 532.7MB. Free memory was 475.6MB in the beginning and 420.0MB in the end (delta: 55.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.78ms. Allocated memory is still 532.7MB. Free memory was 420.0MB in the beginning and 416.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,027 INFO L158 Benchmark]: Boogie Preprocessor took 62.78ms. Allocated memory is still 532.7MB. Free memory was 416.9MB in the beginning and 414.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,027 INFO L158 Benchmark]: RCFGBuilder took 540.86ms. Allocated memory is still 532.7MB. Free memory was 414.5MB in the beginning and 481.4MB in the end (delta: -66.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,027 INFO L158 Benchmark]: TraceAbstraction took 3770.89ms. Allocated memory is still 532.7MB. Free memory was 480.3MB in the beginning and 338.7MB in the end (delta: 141.7MB). Peak memory consumption was 142.7MB. Max. memory is 16.0GB. [2023-01-27 18:22:16,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 299.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 706.82ms. Allocated memory is still 532.7MB. Free memory was 475.6MB in the beginning and 420.0MB in the end (delta: 55.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 91.78ms. Allocated memory is still 532.7MB. Free memory was 420.0MB in the beginning and 416.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 62.78ms. Allocated memory is still 532.7MB. Free memory was 416.9MB in the beginning and 414.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 540.86ms. Allocated memory is still 532.7MB. Free memory was 414.5MB in the beginning and 481.4MB in the end (delta: -66.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3770.89ms. Allocated memory is still 532.7MB. Free memory was 480.3MB in the beginning and 338.7MB in the end (delta: 141.7MB). Peak memory consumption was 142.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 83 PlacesBefore, 14 PlacesAfterwards, 82 TransitionsBefore, 11 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 94 TotalNumberOfCompositions, 227 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 194, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 111, independent: 100, independent conditional: 0, independent unconditional: 100, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 194, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 111, unknown conditional: 0, unknown unconditional: 111] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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, EXPR 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}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] CALL 0 ldv_assert(pdev==4) [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: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, 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=28occurred 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! [2023-01-27 18:22:16,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...