/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:24:05,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:24:05,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:24:05,739 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:24:05,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:24:05,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:24:05,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:24:05,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:24:05,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:24:05,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:24:05,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:24:05,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:24:05,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:24:05,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:24:05,762 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:24:05,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:24:05,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:24:05,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:24:05,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:24:05,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:24:05,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:24:05,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:24:05,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:24:05,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:24:05,765 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:24:05,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:24:05,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:24:05,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:24:05,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:24:05,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:24:05,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:24:05,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:24:05,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:24:05,769 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:24:05,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:24:05,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:24:05,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:24:05,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:24:05,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:24:05,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:24:05,771 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:24:05,771 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:24:05,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:24:05,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:24:05,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:24:05,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:24:05,992 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:24:05,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-04 04:24:07,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:24:07,184 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:24:07,184 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-04 04:24:07,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea8b8e2c/7da386bf2df54103ad689c4bcd4ae14b/FLAG26e43ca4e [2023-08-04 04:24:07,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ea8b8e2c/7da386bf2df54103ad689c4bcd4ae14b [2023-08-04 04:24:07,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:24:07,207 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:24:07,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:24:07,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:24:07,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:24:07,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab7d547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07, skipping insertion in model container [2023-08-04 04:24:07,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,253 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:24:07,492 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i[30687,30700] [2023-08-04 04:24:07,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:24:07,505 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:24:07,528 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-04 04:24:07,530 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [253] [2023-08-04 04:24:07,543 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/added_bound_to_unbounded/pthread-ext_36_stack_cas_p0_vs_concur_bound2.i[30687,30700] [2023-08-04 04:24:07,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:24:07,574 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:24:07,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07 WrapperNode [2023-08-04 04:24:07,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:24:07,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:24:07,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:24:07,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:24:07,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,620 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 106 [2023-08-04 04:24:07,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:24:07,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:24:07,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:24:07,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:24:07,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:24:07,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:24:07,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:24:07,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:24:07,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (1/1) ... [2023-08-04 04:24:07,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:24:07,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:24:07,682 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) [2023-08-04 04:24:07,685 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 [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-04 04:24:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:24:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:24:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:24:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:24:07,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:24:07,714 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-04 04:24:07,834 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:24:07,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:24:07,972 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:24:08,014 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:24:08,015 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-04 04:24:08,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:24:08 BoogieIcfgContainer [2023-08-04 04:24:08,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:24:08,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:24:08,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:24:08,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:24:08,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:24:07" (1/3) ... [2023-08-04 04:24:08,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd5288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:24:08, skipping insertion in model container [2023-08-04 04:24:08,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:24:07" (2/3) ... [2023-08-04 04:24:08,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd5288d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:24:08, skipping insertion in model container [2023-08-04 04:24:08,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:24:08" (3/3) ... [2023-08-04 04:24:08,021 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-ext_36_stack_cas_p0_vs_concur_bound2.i [2023-08-04 04:24:08,026 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:24:08,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:24:08,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:24:08,035 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:24:08,075 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 04:24:08,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,127 INFO L124 PetriNetUnfolderBase]: 10/105 cut-off events. [2023-08-04 04:24:08,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:24:08,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 10/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-04 04:24:08,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,136 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:24:08,142 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,147 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 95 transitions, 195 flow [2023-08-04 04:24:08,165 INFO L124 PetriNetUnfolderBase]: 10/105 cut-off events. [2023-08-04 04:24:08,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:24:08,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 10/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 122 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-04 04:24:08,168 INFO L119 LiptonReduction]: Number of co-enabled transitions 1984 [2023-08-04 04:24:09,673 INFO L134 LiptonReduction]: Checked pairs total: 2843 [2023-08-04 04:24:09,673 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-08-04 04:24:09,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:24:09,689 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13cf91b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:24:09,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-04 04:24:09,695 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:24:09,695 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2023-08-04 04:24:09,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:24:09,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:24:09,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:24:09,697 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:24:09,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:24:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -833098169, now seen corresponding path program 1 times [2023-08-04 04:24:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:24:09,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736493493] [2023-08-04 04:24:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:24:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:24:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:24:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:24:09,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:24:09,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736493493] [2023-08-04 04:24:09,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736493493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:24:09,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:24:09,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-04 04:24:09,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393417678] [2023-08-04 04:24:09,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:24:09,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-04 04:24:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:24:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-04 04:24:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-04 04:24:09,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 178 [2023-08-04 04:24:09,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 29 transitions, 63 flow. Second operand has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:09,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:24:09,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 178 [2023-08-04 04:24:09,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:24:09,994 INFO L124 PetriNetUnfolderBase]: 50/115 cut-off events. [2023-08-04 04:24:09,995 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:24:09,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 115 events. 50/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 267 event pairs, 38 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 211. Up to 109 conditions per place. [2023-08-04 04:24:09,996 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 20 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-04 04:24:09,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 93 flow [2023-08-04 04:24:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-04 04:24:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-04 04:24:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 191 transitions. [2023-08-04 04:24:10,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365168539325843 [2023-08-04 04:24:10,008 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 191 transitions. [2023-08-04 04:24:10,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 191 transitions. [2023-08-04 04:24:10,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:24:10,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 191 transitions. [2023-08-04 04:24:10,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:10,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:10,019 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:10,020 INFO L175 Difference]: Start difference. First operand has 27 places, 29 transitions, 63 flow. Second operand 2 states and 191 transitions. [2023-08-04 04:24:10,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 93 flow [2023-08-04 04:24:10,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 93 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:24:10,024 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 53 flow [2023-08-04 04:24:10,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=53, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2023-08-04 04:24:10,030 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-08-04 04:24:10,030 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 53 flow [2023-08-04 04:24:10,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 88.5) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:10,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:24:10,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:24:10,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:24:10,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:24:10,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:24:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash -754974456, now seen corresponding path program 1 times [2023-08-04 04:24:10,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:24:10,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197503749] [2023-08-04 04:24:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:24:10,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:24:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:24:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:24:10,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:24:10,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197503749] [2023-08-04 04:24:10,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197503749] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:24:10,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:24:10,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-04 04:24:10,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822228993] [2023-08-04 04:24:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:24:10,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-04 04:24:10,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:24:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-04 04:24:10,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-04 04:24:10,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 178 [2023-08-04 04:24:10,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 53 flow. Second operand has 11 states, 11 states have (on average 64.45454545454545) internal successors, (709), 11 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:10,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:24:10,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 178 [2023-08-04 04:24:10,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:24:11,140 INFO L124 PetriNetUnfolderBase]: 109/252 cut-off events. [2023-08-04 04:24:11,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:24:11,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 252 events. 109/252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 662 event pairs, 3 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 505. Up to 113 conditions per place. [2023-08-04 04:24:11,142 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 53 selfloop transitions, 26 changer transitions 0/81 dead transitions. [2023-08-04 04:24:11,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 81 transitions, 325 flow [2023-08-04 04:24:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-04 04:24:11,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-04 04:24:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 963 transitions. [2023-08-04 04:24:11,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3864365971107544 [2023-08-04 04:24:11,146 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 963 transitions. [2023-08-04 04:24:11,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 963 transitions. [2023-08-04 04:24:11,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:24:11,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 963 transitions. [2023-08-04 04:24:11,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.78571428571429) internal successors, (963), 14 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:11,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 178.0) internal successors, (2670), 15 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:11,153 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 178.0) internal successors, (2670), 15 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:11,154 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 53 flow. Second operand 14 states and 963 transitions. [2023-08-04 04:24:11,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 81 transitions, 325 flow [2023-08-04 04:24:11,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 81 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:24:11,155 INFO L231 Difference]: Finished difference. Result has 44 places, 51 transitions, 221 flow [2023-08-04 04:24:11,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=221, PETRI_PLACES=44, PETRI_TRANSITIONS=51} [2023-08-04 04:24:11,156 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-04 04:24:11,156 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 51 transitions, 221 flow [2023-08-04 04:24:11,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 64.45454545454545) internal successors, (709), 11 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:24:11,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:24:11,157 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:24:11,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-04 04:24:11,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:24:11,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:24:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1749897906, now seen corresponding path program 1 times [2023-08-04 04:24:11,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:24:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25992691] [2023-08-04 04:24:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:24:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:24:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:24:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:24:11,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:24:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25992691] [2023-08-04 04:24:11,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25992691] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 04:24:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049062556] [2023-08-04 04:24:11,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:24:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:24:11,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:24:11,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:24:11,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-04 04:24:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:24:11,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 63 conjunts are in the unsatisfiable core [2023-08-04 04:24:11,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:24:11,751 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-04 04:24:11,794 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-04 04:24:11,795 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-04 04:24:11,872 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-04 04:24:11,945 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-04 04:24:12,142 INFO L322 Elim1Store]: treesize reduction 38, result has 44.9 percent of original size [2023-08-04 04:24:12,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 72 [2023-08-04 04:24:12,189 INFO L322 Elim1Store]: treesize reduction 73, result has 35.4 percent of original size [2023-08-04 04:24:12,189 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 63 treesize of output 111 [2023-08-04 04:24:12,199 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-04 04:24:12,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-04 04:24:12,238 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-08-04 04:24:12,260 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-04 04:24:12,357 INFO L322 Elim1Store]: treesize reduction 16, result has 46.7 percent of original size [2023-08-04 04:24:12,358 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 40 [2023-08-04 04:24:12,369 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2023-08-04 04:24:12,414 INFO L322 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-08-04 04:24:12,414 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 22 [2023-08-04 04:24:12,420 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-04 04:24:12,427 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2023-08-04 04:24:12,464 INFO L322 Elim1Store]: treesize reduction 30, result has 46.4 percent of original size [2023-08-04 04:24:12,465 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 44 [2023-08-04 04:24:12,475 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-08-04 04:24:12,488 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2023-08-04 04:24:12,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:24:12,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:24:14,606 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse1 |c_~#top~0.offset|)))) (and (or (forall ((v_ArrVal_95 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| Int)) (not (= (select (select (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| v_ArrVal_95) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0) (or (forall ((v_ArrVal_93 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| Int)) (not (= (select (select (store (store |c_#memory_int| |c_~#top~0.base| (store .cse1 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| (store (select (store |c_#memory_int| |c_~#top~0.base| v_ArrVal_93) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| 1)) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) (not .cse0))))) is different from false [2023-08-04 04:24:41,482 WARN L233 SmtUtils]: Spent 6.08s on a formula simplification. DAG size of input: 38 DAG size of output: 28 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-04 04:25:09,693 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_93 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| Int) (v_ArrVal_91 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_91))) (store (store .cse0 |c_~#top~0.base| (store (select .cse0 |c_~#top~0.base|) |c_~#top~0.offset| (select (select .cse0 |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|))) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7| (store (select (store .cse0 |c_~#top~0.base| v_ArrVal_93) |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_7|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| 1))) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-08-04 04:25:09,717 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-04 04:25:09,718 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 52 [2023-08-04 04:25:09,733 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-04 04:25:09,733 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-04 04:25:09,783 INFO L322 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-08-04 04:25:09,784 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 636 treesize of output 622 [2023-08-04 04:25:09,822 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 322 treesize of output 306 [2023-08-04 04:25:09,831 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 298 [2023-08-04 04:25:09,895 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-04 04:25:09,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-04 04:25:09,929 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-04 04:25:09,930 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1170 treesize of output 1128 [2023-08-04 04:25:09,960 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 257 [2023-08-04 04:25:09,966 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 249 [2023-08-04 04:25:10,033 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2023-08-04 04:25:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-04 04:25:10,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049062556] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-04 04:25:10,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-04 04:25:10,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 28 [2023-08-04 04:25:10,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693954015] [2023-08-04 04:25:10,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-04 04:25:10,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-08-04 04:25:10,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:25:10,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-08-04 04:25:10,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=634, Unknown=31, NotChecked=106, Total=870 [2023-08-04 04:25:10,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 178 [2023-08-04 04:25:10,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 51 transitions, 221 flow. Second operand has 30 states, 30 states have (on average 44.666666666666664) internal successors, (1340), 30 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:25:10,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:25:10,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 178 [2023-08-04 04:25:10,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:25:19,840 INFO L124 PetriNetUnfolderBase]: 142/366 cut-off events. [2023-08-04 04:25:19,840 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2023-08-04 04:25:19,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 366 events. 142/366 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1315 event pairs, 0 based on Foata normal form. 1/346 useless extension candidates. Maximal degree in co-relation 1006. Up to 130 conditions per place. [2023-08-04 04:25:19,842 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 87 selfloop transitions, 75 changer transitions 0/164 dead transitions. [2023-08-04 04:25:19,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 164 transitions, 932 flow [2023-08-04 04:25:19,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-04 04:25:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-04 04:25:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1295 transitions. [2023-08-04 04:25:19,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2694548481065335 [2023-08-04 04:25:19,846 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1295 transitions. [2023-08-04 04:25:19,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1295 transitions. [2023-08-04 04:25:19,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:25:19,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1295 transitions. [2023-08-04 04:25:19,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 47.96296296296296) internal successors, (1295), 27 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:25:19,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 178.0) internal successors, (4984), 28 states have internal predecessors, (4984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:25:19,853 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 178.0) internal successors, (4984), 28 states have internal predecessors, (4984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:25:19,853 INFO L175 Difference]: Start difference. First operand has 44 places, 51 transitions, 221 flow. Second operand 27 states and 1295 transitions. [2023-08-04 04:25:19,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 164 transitions, 932 flow [2023-08-04 04:25:19,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 164 transitions, 932 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:25:19,858 INFO L231 Difference]: Finished difference. Result has 82 places, 120 transitions, 806 flow [2023-08-04 04:25:19,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=806, PETRI_PLACES=82, PETRI_TRANSITIONS=120} [2023-08-04 04:25:19,859 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 55 predicate places. [2023-08-04 04:25:19,859 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 120 transitions, 806 flow [2023-08-04 04:25:19,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 44.666666666666664) internal successors, (1340), 30 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-04 04:25:19,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:25:19,860 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-04 04:25:19,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-04 04:25:20,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:25:20,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:25:20,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:25:20,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1015110068, now seen corresponding path program 2 times [2023-08-04 04:25:20,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:25:20,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199992542] [2023-08-04 04:25:20,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:25:20,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:25:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:25:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:25:20,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:25:20,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199992542] [2023-08-04 04:25:20,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199992542] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-04 04:25:20,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146065020] [2023-08-04 04:25:20,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-04 04:25:20,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-04 04:25:20,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:25:20,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-04 04:25:20,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-04 04:25:20,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-04 04:25:20,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-04 04:25:20,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 67 conjunts are in the unsatisfiable core [2023-08-04 04:25:20,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-04 04:25:20,739 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-04 04:25:20,739 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-04 04:25:20,833 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-04 04:25:21,009 INFO L322 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2023-08-04 04:25:21,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 25 [2023-08-04 04:25:21,077 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-04 04:25:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:25:21,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-04 04:25:21,107 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_160 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_160) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) is different from false [2023-08-04 04:25:21,137 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse2 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((v_ArrVal_160 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| Int)) (not (= 0 (select (select (store (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| |c_thr1Thread1of1ForFork0_push_#t~mem8#1|)))) (store .cse1 |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| (store (select .cse1 |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| 1))) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_160) |c_~#top~0.base|) |c_~#top~0.offset|))))) (or (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_153 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| Int)) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| v_ArrVal_153) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_160) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0)))) is different from false [2023-08-04 04:25:21,148 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_~#top~0.base|))) (let ((.cse0 (= |c_thr1Thread1of1ForFork0_push_~oldTop~0#1| (select .cse2 |c_~#top~0.offset|)))) (and (or (not .cse0) (forall ((v_ArrVal_160 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| Int)) (not (= (select (select (store (let ((.cse1 (store |c_#memory_int| |c_~#top~0.base| (store .cse2 |c_~#top~0.offset| (select (select |c_#memory_int| |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.base|) |c_thr1Thread1of1ForFork0_push_~#newTop~0#1.offset|))))) (store .cse1 |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| (store (select .cse1 |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9|) |c_thr1Thread1of1ForFork0_push_~#ret~0#1.offset| 1))) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_160) |c_~#top~0.base|) |c_~#top~0.offset|) 0)))) (or (forall ((v_ArrVal_160 (Array Int Int)) (v_ArrVal_153 (Array Int Int)) (|v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| Int)) (not (= (select (select (store (store |c_#memory_int| |v_thr1Thread1of1ForFork0___VERIFIER_atomic_CAS_~r#1.base_9| v_ArrVal_153) |c_ULTIMATE.start_main_~#t~0#1.base| v_ArrVal_160) |c_~#top~0.base|) |c_~#top~0.offset|) 0))) .cse0)))) is different from false [2023-08-04 04:25:21,283 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-04 04:25:21,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 52 [2023-08-04 04:25:21,297 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-04 04:25:21,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2023-08-04 04:25:21,380 INFO L322 Elim1Store]: treesize reduction 27, result has 60.9 percent of original size [2023-08-04 04:25:21,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 105 treesize of output 127 [2023-08-04 04:25:21,495 INFO L322 Elim1Store]: treesize reduction 74, result has 46.0 percent of original size [2023-08-04 04:25:21,495 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 163 [2023-08-04 04:25:21,541 INFO L322 Elim1Store]: treesize reduction 40, result has 38.5 percent of original size [2023-08-04 04:25:21,541 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 132 treesize of output 129 [2023-08-04 04:25:21,556 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2023-08-04 04:25:21,810 INFO L322 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-08-04 04:25:21,811 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 166 [2023-08-04 04:25:21,859 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:21,860 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-04 04:25:21,878 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:21,879 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 14 [2023-08-04 04:25:21,941 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 164 [2023-08-04 04:25:22,152 INFO L322 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-08-04 04:25:22,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 166 [2023-08-04 04:25:22,197 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:22,197 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-04 04:25:22,364 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:22,364 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-04 04:25:22,380 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:22,381 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2023-08-04 04:25:22,405 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:22,406 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 8 treesize of output 4 [2023-08-04 04:25:22,451 INFO L322 Elim1Store]: treesize reduction 33, result has 42.1 percent of original size [2023-08-04 04:25:22,452 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 46 [2023-08-04 04:25:22,475 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-08-04 04:25:22,532 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-04 04:25:22,533 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2023-08-04 04:26:39,158 WARN L233 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 331 DAG size of output: 121 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-04 04:26:39,158 INFO L322 Elim1Store]: treesize reduction 510, result has 28.4 percent of original size [2023-08-04 04:26:39,159 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 24 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 35 new quantified variables, introduced 67 case distinctions, treesize of input 1624 treesize of output 1131 Received shutdown request... [2023-08-04 04:38:45,086 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 [2023-08-04 04:38:45,086 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-04 04:38:45,126 WARN L265 SmtUtils]: Removed 1960 from assertion stack [2023-08-04 04:38:45,128 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-04 04:38:45,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-04 04:38:45,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-04 04:38:45,329 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 20 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8825 for 725841ms.. [2023-08-04 04:38:45,330 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-08-04 04:38:45,330 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-08-04 04:38:45,332 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT (1/2) [2023-08-04 04:38:45,334 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-04 04:38:45,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:38:45,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:38:45 BasicIcfg [2023-08-04 04:38:45,338 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:38:45,338 INFO L158 Benchmark]: Toolchain (without parser) took 878131.42ms. Allocated memory was 375.4MB in the beginning and 650.1MB in the end (delta: 274.7MB). Free memory was 311.2MB in the beginning and 524.1MB in the end (delta: -213.0MB). Peak memory consumption was 382.2MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,338 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 375.4MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:38:45,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.99ms. Allocated memory is still 375.4MB. Free memory was 310.9MB in the beginning and 291.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.91ms. Allocated memory is still 375.4MB. Free memory was 291.2MB in the beginning and 289.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,339 INFO L158 Benchmark]: Boogie Preprocessor took 17.62ms. Allocated memory is still 375.4MB. Free memory was 289.0MB in the beginning and 287.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,340 INFO L158 Benchmark]: RCFGBuilder took 377.75ms. Allocated memory was 375.4MB in the beginning and 650.1MB in the end (delta: 274.7MB). Free memory was 287.6MB in the beginning and 593.1MB in the end (delta: -305.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,340 INFO L158 Benchmark]: TraceAbstraction took 877320.23ms. Allocated memory is still 650.1MB. Free memory was 592.1MB in the beginning and 524.1MB in the end (delta: 68.0MB). Peak memory consumption was 387.8MB. Max. memory is 16.0GB. [2023-08-04 04:38:45,341 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 375.4MB. Free memory is still 322.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 363.99ms. Allocated memory is still 375.4MB. Free memory was 310.9MB in the beginning and 291.2MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.91ms. Allocated memory is still 375.4MB. Free memory was 291.2MB in the beginning and 289.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.62ms. Allocated memory is still 375.4MB. Free memory was 289.0MB in the beginning and 287.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 377.75ms. Allocated memory was 375.4MB in the beginning and 650.1MB in the end (delta: 274.7MB). Free memory was 287.6MB in the beginning and 593.1MB in the end (delta: -305.5MB). Peak memory consumption was 9.1MB. Max. memory is 16.0GB. * TraceAbstraction took 877320.23ms. Allocated memory is still 650.1MB. Free memory was 592.1MB in the beginning and 524.1MB in the end (delta: 68.0MB). Peak memory consumption was 387.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] - GenericResultAtLocation [Line: 253]: Unsoundness Warning unspecified type, defaulting to int C: short [253] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 89 PlacesBefore, 27 PlacesAfterwards, 95 TransitionsBefore, 29 TransitionsAfterwards, 1984 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 4 ChoiceCompositions, 83 TotalNumberOfCompositions, 2843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1923, independent: 1755, independent conditional: 0, independent unconditional: 1755, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1108, independent: 1060, independent conditional: 0, independent unconditional: 1060, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1923, independent: 695, independent conditional: 0, independent unconditional: 695, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 1108, unknown conditional: 0, unknown unconditional: 1108] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 725]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 20 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 8825 for 725841ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 3 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: 877.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 475 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 258 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 287 IncrementalHoareTripleChecker+Unchecked, 238 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2103 IncrementalHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 20 mSDtfsCounter, 2103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 66.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=806occurred in iteration=3, InterpolantAutomatonStates: 43, 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, 59.5s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 12 QuantifiedInterpolants, 1308 SizeOfPredicates, 22 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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 could not prove your program: Timeout Completed graceful shutdown