/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 12:20:17,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 12:20:17,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 12:20:17,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 12:20:17,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 12:20:17,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 12:20:17,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 12:20:17,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 12:20:17,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 12:20:17,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 12:20:17,535 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 12:20:17,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 12:20:17,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 12:20:17,537 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 12:20:17,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 12:20:17,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 12:20:17,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 12:20:17,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 12:20:17,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 12:20:17,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 12:20:17,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 12:20:17,539 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 12:20:17,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 12:20:17,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 12:20:17,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 12:20:17,540 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 12:20:17,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 12:20:17,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:20:17,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 12:20:17,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 12:20:17,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 12:20:17,542 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 12:20:17,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 12:20:17,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 12:20:17,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 12:20:17,543 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 12:20:17,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 12:20:17,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 12:20:17,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 12:20:17,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 12:20:17,885 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 12:20:17,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-26 12:20:19,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 12:20:19,421 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 12:20:19,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-26 12:20:19,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e709390/4a638fc05f004f6d85419cb05bf97586/FLAG3d6745f0e [2023-08-26 12:20:19,460 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e709390/4a638fc05f004f6d85419cb05bf97586 [2023-08-26 12:20:19,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 12:20:19,465 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 12:20:19,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 12:20:19,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 12:20:19,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 12:20:19,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:20:19" (1/1) ... [2023-08-26 12:20:19,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6bce99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:19, skipping insertion in model container [2023-08-26 12:20:19,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:20:19" (1/1) ... [2023-08-26 12:20:19,525 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 12:20:20,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:20:20,152 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 12:20:20,160 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [113] [2023-08-26 12:20:20,169 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [559] [2023-08-26 12:20:20,169 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [560] [2023-08-26 12:20:20,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 12:20:20,293 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 12:20:20,293 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 12:20:20,299 INFO L206 MainTranslator]: Completed translation [2023-08-26 12:20:20,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20 WrapperNode [2023-08-26 12:20:20,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 12:20:20,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 12:20:20,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 12:20:20,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 12:20:20,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,472 INFO L138 Inliner]: procedures = 397, calls = 215, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 3794 [2023-08-26 12:20:20,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 12:20:20,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 12:20:20,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 12:20:20,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 12:20:20,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 12:20:20,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 12:20:20,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 12:20:20,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 12:20:20,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (1/1) ... [2023-08-26 12:20:20,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 12:20:20,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 12:20:20,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 12:20:20,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 12:20:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 12:20:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-08-26 12:20:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-08-26 12:20:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-08-26 12:20:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-08-26 12:20:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-08-26 12:20:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-08-26 12:20:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 12:20:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 12:20:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 12:20:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-08-26 12:20:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-08-26 12:20:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-08-26 12:20:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-08-26 12:20:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-08-26 12:20:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-08-26 12:20:20,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 12:20:20,697 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 12:20:21,060 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 12:20:21,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 12:20:24,876 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 12:20:29,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 12:20:29,671 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 12:20:29,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:20:29 BoogieIcfgContainer [2023-08-26 12:20:29,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 12:20:29,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 12:20:29,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 12:20:29,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 12:20:29,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:20:19" (1/3) ... [2023-08-26 12:20:29,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a55b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:20:29, skipping insertion in model container [2023-08-26 12:20:29,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:20:20" (2/3) ... [2023-08-26 12:20:29,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a55b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:20:29, skipping insertion in model container [2023-08-26 12:20:29,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:20:29" (3/3) ... [2023-08-26 12:20:29,687 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-08-26 12:20:29,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 12:20:29,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1343 error locations. [2023-08-26 12:20:29,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 12:20:31,582 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 12:20:31,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3538 places, 3663 transitions, 7361 flow [2023-08-26 12:20:37,728 INFO L124 PetriNetUnfolderBase]: 147/3656 cut-off events. [2023-08-26 12:20:37,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:20:37,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 3656 events. 147/3656 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 29990 event pairs, 0 based on Foata normal form. 0/2166 useless extension candidates. Maximal degree in co-relation 3601. Up to 6 conditions per place. [2023-08-26 12:20:37,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 3538 places, 3663 transitions, 7361 flow [2023-08-26 12:20:38,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 3531 places, 3656 transitions, 7333 flow [2023-08-26 12:20:38,391 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 12:20:38,406 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 3531 places, 3656 transitions, 7333 flow [2023-08-26 12:20:38,408 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 3531 places, 3656 transitions, 7333 flow [2023-08-26 12:20:38,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3531 places, 3656 transitions, 7333 flow [2023-08-26 12:20:42,801 INFO L124 PetriNetUnfolderBase]: 147/3656 cut-off events. [2023-08-26 12:20:42,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 12:20:43,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 3656 events. 147/3656 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30026 event pairs, 0 based on Foata normal form. 0/2166 useless extension candidates. Maximal degree in co-relation 3601. Up to 6 conditions per place. [2023-08-26 12:20:45,165 INFO L119 LiptonReduction]: Number of co-enabled transitions 10935108 [2023-08-26 12:21:03,569 WARN L234 SmtUtils]: Spent 16.23s on a formula simplification. DAG size of input: 345 DAG size of output: 319 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:21:11,928 WARN L234 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 318 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:21:31,616 WARN L234 SmtUtils]: Spent 19.68s on a formula simplification. DAG size of input: 379 DAG size of output: 351 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:21:39,896 WARN L234 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 348 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:22:05,209 WARN L234 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 279 DAG size of output: 201 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:22:22,500 WARN L234 SmtUtils]: Spent 14.15s on a formula simplification. DAG size of input: 301 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:23:49,249 WARN L234 SmtUtils]: Spent 1.39m on a formula simplification. DAG size of input: 459 DAG size of output: 330 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:24:12,807 WARN L234 SmtUtils]: Spent 23.56s on a formula simplification that was a NOOP. DAG size: 320 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:25:40,889 WARN L234 SmtUtils]: Spent 1.47m on a formula simplification. DAG size of input: 502 DAG size of output: 368 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:26:04,970 WARN L234 SmtUtils]: Spent 24.08s on a formula simplification that was a NOOP. DAG size: 358 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:27:28,099 WARN L234 SmtUtils]: Spent 8.89s on a formula simplification. DAG size of input: 285 DAG size of output: 242 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:27:41,916 WARN L234 SmtUtils]: Spent 11.07s on a formula simplification. DAG size of input: 301 DAG size of output: 256 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:28:33,224 WARN L234 SmtUtils]: Spent 48.25s on a formula simplification. DAG size of input: 382 DAG size of output: 349 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:28:48,365 WARN L234 SmtUtils]: Spent 15.14s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:29:46,769 WARN L234 SmtUtils]: Spent 58.32s on a formula simplification. DAG size of input: 409 DAG size of output: 377 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:30:04,041 WARN L234 SmtUtils]: Spent 17.27s on a formula simplification that was a NOOP. DAG size: 372 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:30:23,203 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 272 DAG size of output: 237 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:30:32,891 WARN L234 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 290 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:32:09,213 WARN L234 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 524 DAG size of output: 424 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:32:42,590 WARN L234 SmtUtils]: Spent 33.37s on a formula simplification that was a NOOP. DAG size: 416 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 12:34:30,078 WARN L234 SmtUtils]: Spent 1.79m on a formula simplification. DAG size of input: 557 DAG size of output: 456 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2023-08-26 12:34:31,966 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 12:34:31,995 WARN L266 SmtUtils]: Removed 65 from assertion stack [2023-08-26 12:34:31,996 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-26 12:34:31,998 INFO L158 Benchmark]: Toolchain (without parser) took 852533.72ms. Allocated memory was 348.1MB in the beginning and 11.4GB in the end (delta: 11.0GB). Free memory was 321.8MB in the beginning and 7.8GB in the end (delta: -7.4GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. [2023-08-26 12:34:31,998 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 348.1MB. Free memory was 324.8MB in the beginning and 324.7MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 12:34:31,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.20ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 319.3MB in the end (delta: 2.0MB). Peak memory consumption was 54.3MB. Max. memory is 16.0GB. [2023-08-26 12:34:31,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 171.12ms. Allocated memory is still 348.1MB. Free memory was 319.3MB in the beginning and 300.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 12:34:31,999 INFO L158 Benchmark]: Boogie Preprocessor took 149.81ms. Allocated memory is still 348.1MB. Free memory was 300.4MB in the beginning and 282.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 12:34:32,000 INFO L158 Benchmark]: RCFGBuilder took 9055.38ms. Allocated memory was 348.1MB in the beginning and 929.0MB in the end (delta: 580.9MB). Free memory was 282.6MB in the beginning and 585.4MB in the end (delta: -302.8MB). Peak memory consumption was 415.5MB. Max. memory is 16.0GB. [2023-08-26 12:34:32,000 INFO L158 Benchmark]: TraceAbstraction took 842315.77ms. Allocated memory was 929.0MB in the beginning and 11.4GB in the end (delta: 10.4GB). Free memory was 584.4MB in the beginning and 7.8GB in the end (delta: -7.2GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. [2023-08-26 12:34:32,003 INFO L338 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 348.1MB. Free memory was 324.8MB in the beginning and 324.7MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 833.20ms. Allocated memory is still 348.1MB. Free memory was 321.3MB in the beginning and 319.3MB in the end (delta: 2.0MB). Peak memory consumption was 54.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 171.12ms. Allocated memory is still 348.1MB. Free memory was 319.3MB in the beginning and 300.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Preprocessor took 149.81ms. Allocated memory is still 348.1MB. Free memory was 300.4MB in the beginning and 282.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * RCFGBuilder took 9055.38ms. Allocated memory was 348.1MB in the beginning and 929.0MB in the end (delta: 580.9MB). Free memory was 282.6MB in the beginning and 585.4MB in the end (delta: -302.8MB). Peak memory consumption was 415.5MB. Max. memory is 16.0GB. * TraceAbstraction took 842315.77ms. Allocated memory was 929.0MB in the beginning and 11.4GB in the end (delta: 10.4GB). Free memory was 584.4MB in the beginning and 7.8GB in the end (delta: -7.2GB). Peak memory consumption was 4.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 113]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [113] - GenericResultAtLocation [Line: 559]: Unsoundness Warning unspecified type, defaulting to int C: short [559] - GenericResultAtLocation [Line: 560]: Unsoundness Warning unspecified type, defaulting to int C: short [560] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 3531 places, 3656 transitions, 7333 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 3531 places, 3656 transitions, 7333 flow and 10935108 co-enabled transitions pairs.,while SimplifyDDAWithTimeout was simplifying term of DAG size 448 for 1912ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown