/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.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -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 15:26:41,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 15:26:41,560 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 15:26:41,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 15:26:41,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 15:26:41,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 15:26:41,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 15:26:41,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 15:26:41,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 15:26:41,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 15:26:41,596 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 15:26:41,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 15:26:41,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 15:26:41,600 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 15:26:41,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 15:26:41,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 15:26:41,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 15:26:41,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 15:26:41,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 15:26:41,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 15:26:41,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 15:26:41,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 15:26:41,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 15:26:41,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 15:26:41,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 15:26:41,604 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 15:26:41,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 15:26:41,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 15:26:41,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 15:26:41,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 15:26:41,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 15:26:41,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 15:26:41,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 15:26:41,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 15:26:41,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 15:26:41,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 15:26:41,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 15:26:41,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 15:26:41,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 15:26:41,927 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 15:26:41,927 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 15:26:41,928 INFO L431 ainManager$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 15:26:43,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 15:26:43,400 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 15:26:43,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-26 15:26:43,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3941a869/3c00cbd5d6d74756965e29aca6c0bd38/FLAG8f2a1b315 [2023-08-26 15:26:43,428 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3941a869/3c00cbd5d6d74756965e29aca6c0bd38 [2023-08-26 15:26:43,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 15:26:43,431 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 15:26:43,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 15:26:43,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 15:26:43,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 15:26:43,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:26:43" (1/1) ... [2023-08-26 15:26:43,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdc0290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:43, skipping insertion in model container [2023-08-26 15:26:43,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:26:43" (1/1) ... [2023-08-26 15:26:43,487 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 15:26:44,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 15:26:44,109 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 15:26:44,123 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [113] [2023-08-26 15:26:44,131 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [559] [2023-08-26 15:26:44,132 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [560] [2023-08-26 15:26:44,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 15:26:44,274 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 15:26:44,274 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 15:26:44,279 INFO L206 MainTranslator]: Completed translation [2023-08-26 15:26:44,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44 WrapperNode [2023-08-26 15:26:44,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 15:26:44,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 15:26:44,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 15:26:44,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 15:26:44,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,436 INFO L138 Inliner]: procedures = 397, calls = 215, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 3794 [2023-08-26 15:26:44,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 15:26:44,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 15:26:44,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 15:26:44,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 15:26:44,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 15:26:44,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 15:26:44,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 15:26:44,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 15:26:44,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (1/1) ... [2023-08-26 15:26:44,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 15:26:44,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 15:26:44,649 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 15:26:44,660 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 15:26:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 15:26:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 15:26:44,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 15:26:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 15:26:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 15:26:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 15:26:44,685 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-08-26 15:26:44,685 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-08-26 15:26:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-08-26 15:26:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-08-26 15:26:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-08-26 15:26:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-08-26 15:26:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 15:26:44,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 15:26:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 15:26:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 15:26:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-26 15:26:44,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 15:26:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-08-26 15:26:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-08-26 15:26:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-08-26 15:26:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-08-26 15:26:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-08-26 15:26:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-08-26 15:26:44,688 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-08-26 15:26:44,688 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-08-26 15:26:44,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 15:26:44,692 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 15:26:45,056 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 15:26:45,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 15:26:48,906 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 15:26:53,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 15:26:53,713 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 15:26:53,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:26:53 BoogieIcfgContainer [2023-08-26 15:26:53,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 15:26:53,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 15:26:53,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 15:26:53,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 15:26:53,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:26:43" (1/3) ... [2023-08-26 15:26:53,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c7497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:26:53, skipping insertion in model container [2023-08-26 15:26:53,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:26:44" (2/3) ... [2023-08-26 15:26:53,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c7497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:26:53, skipping insertion in model container [2023-08-26 15:26:53,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:26:53" (3/3) ... [2023-08-26 15:26:53,727 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-08-26 15:26:53,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 15:26:53,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1343 error locations. [2023-08-26 15:26:53,743 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 15:26:55,973 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 15:26:56,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3538 places, 3663 transitions, 7361 flow [2023-08-26 15:27:01,159 INFO L124 PetriNetUnfolderBase]: 147/3656 cut-off events. [2023-08-26 15:27:01,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 15:27:01,415 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 15:27:01,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 3538 places, 3663 transitions, 7361 flow [2023-08-26 15:27:01,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 3531 places, 3656 transitions, 7333 flow [2023-08-26 15:27:01,912 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 15:27:01,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 3531 places, 3656 transitions, 7333 flow [2023-08-26 15:27:01,927 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 3531 places, 3656 transitions, 7333 flow [2023-08-26 15:27:01,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3531 places, 3656 transitions, 7333 flow [2023-08-26 15:27:06,035 INFO L124 PetriNetUnfolderBase]: 147/3656 cut-off events. [2023-08-26 15:27:06,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 15:27:06,297 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 15:27:08,297 INFO L119 LiptonReduction]: Number of co-enabled transitions 10935108 [2023-08-26 15:27:26,849 WARN L234 SmtUtils]: Spent 16.15s 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 15:27:35,129 WARN L234 SmtUtils]: Spent 8.28s 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 15:27:54,952 WARN L234 SmtUtils]: Spent 19.82s 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 15:28:03,312 WARN L234 SmtUtils]: Spent 8.36s 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 15:28:29,157 WARN L234 SmtUtils]: Spent 10.94s 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 15:28:46,629 WARN L234 SmtUtils]: Spent 14.30s 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 15:30:15,876 WARN L234 SmtUtils]: Spent 1.43m 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 15:30:40,120 WARN L234 SmtUtils]: Spent 24.24s 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 15:32:10,686 WARN L234 SmtUtils]: Spent 1.51m 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 15:32:34,743 WARN L234 SmtUtils]: Spent 24.05s 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 15:33:56,209 WARN L234 SmtUtils]: Spent 8.78s 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 15:34:09,802 WARN L234 SmtUtils]: Spent 10.87s 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 15:34:59,952 WARN L234 SmtUtils]: Spent 47.11s 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 15:35:14,686 WARN L234 SmtUtils]: Spent 14.73s 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 15:36:11,123 WARN L234 SmtUtils]: Spent 56.43s 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 15:36:27,957 WARN L234 SmtUtils]: Spent 16.83s 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 15:36:46,731 WARN L234 SmtUtils]: Spent 5.14s 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 15:36:56,358 WARN L234 SmtUtils]: Spent 7.22s 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 15:38:34,755 WARN L234 SmtUtils]: Spent 1.59m 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 15:39:09,139 WARN L234 SmtUtils]: Spent 34.38s 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) Received shutdown request... [2023-08-26 15:40:55,715 WARN L266 SmtUtils]: Removed 32 from assertion stack [2023-08-26 15:40:55,716 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 15:40:55,717 INFO L158 Benchmark]: Toolchain (without parser) took 852286.13ms. Allocated memory was 350.2MB in the beginning and 11.4GB in the end (delta: 11.1GB). Free memory was 324.4MB in the beginning and 9.7GB in the end (delta: -9.4GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2023-08-26 15:40:55,718 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 350.2MB. Free memory is still 326.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 15:40:55,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.13ms. Allocated memory is still 350.2MB. Free memory was 324.4MB in the beginning and 275.8MB in the end (delta: 48.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. [2023-08-26 15:40:55,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.06ms. Allocated memory is still 350.2MB. Free memory was 275.8MB in the beginning and 310.1MB in the end (delta: -34.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. [2023-08-26 15:40:55,719 INFO L158 Benchmark]: Boogie Preprocessor took 182.96ms. Allocated memory is still 350.2MB. Free memory was 310.1MB in the beginning and 292.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 15:40:55,720 INFO L158 Benchmark]: RCFGBuilder took 9098.13ms. Allocated memory was 350.2MB in the beginning and 954.2MB in the end (delta: 604.0MB). Free memory was 291.2MB in the beginning and 514.3MB in the end (delta: -223.1MB). Peak memory consumption was 477.3MB. Max. memory is 16.0GB. [2023-08-26 15:40:55,720 INFO L158 Benchmark]: TraceAbstraction took 841995.12ms. Allocated memory was 954.2MB in the beginning and 11.4GB in the end (delta: 10.5GB). Free memory was 514.3MB in the beginning and 9.7GB in the end (delta: -9.2GB). Peak memory consumption was 3.1GB. Max. memory is 16.0GB. [2023-08-26 15:40:55,723 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-08-26 15:40:55,729 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 Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 350.2MB. Free memory is still 326.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 848.13ms. Allocated memory is still 350.2MB. Free memory was 324.4MB in the beginning and 275.8MB in the end (delta: 48.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 156.06ms. Allocated memory is still 350.2MB. Free memory was 275.8MB in the beginning and 310.1MB in the end (delta: -34.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.0GB. * Boogie Preprocessor took 182.96ms. Allocated memory is still 350.2MB. Free memory was 310.1MB in the beginning and 292.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * RCFGBuilder took 9098.13ms. Allocated memory was 350.2MB in the beginning and 954.2MB in the end (delta: 604.0MB). Free memory was 291.2MB in the beginning and 514.3MB in the end (delta: -223.1MB). Peak memory consumption was 477.3MB. Max. memory is 16.0GB. * TraceAbstraction took 841995.12ms. Allocated memory was 954.2MB in the beginning and 11.4GB in the end (delta: 10.5GB). Free memory was 514.3MB in the beginning and 9.7GB in the end (delta: -9.2GB). Peak memory consumption was 3.1GB. 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 TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 557 for 106570ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown