/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/increased_bounds/goblint-regression_36-apron_16-traces-unprot2_true_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-04 04:35:24,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-04 04:35:24,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-04 04:35:24,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-04 04:35:24,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-04 04:35:24,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-04 04:35:24,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-04 04:35:24,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-04 04:35:24,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-04 04:35:24,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-04 04:35:24,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-04 04:35:24,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-04 04:35:24,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-04 04:35:24,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-04 04:35:24,627 INFO L153 SettingsManager]: * Use SBE=true [2023-08-04 04:35:24,627 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-04 04:35:24,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-04 04:35:24,627 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-04 04:35:24,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-04 04:35:24,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-04 04:35:24,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-04 04:35:24,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-04 04:35:24,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-04 04:35:24,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-04 04:35:24,629 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-04 04:35:24,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-04 04:35:24,630 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-04 04:35:24,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-04 04:35:24,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-04 04:35:24,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-04 04:35:24,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:35:24,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-04 04:35:24,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-04 04:35:24,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-04 04:35:24,634 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-04 04:35:24,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST [2023-08-04 04:35:24,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-04 04:35:24,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-04 04:35:24,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-04 04:35:24,868 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-04 04:35:24,869 INFO L274 PluginConnector]: CDTParser initialized [2023-08-04 04:35:24,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_16-traces-unprot2_true_bound2.i [2023-08-04 04:35:26,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-04 04:35:26,340 INFO L384 CDTParser]: Found 1 translation units. [2023-08-04 04:35:26,340 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_16-traces-unprot2_true_bound2.i [2023-08-04 04:35:26,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c85f04a9/21e76ed8522648b8b5a8c6d92d88fafc/FLAG166bdd86b [2023-08-04 04:35:26,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c85f04a9/21e76ed8522648b8b5a8c6d92d88fafc [2023-08-04 04:35:26,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-04 04:35:26,385 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-04 04:35:26,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-04 04:35:26,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-04 04:35:26,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-04 04:35:26,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61115df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26, skipping insertion in model container [2023-08-04 04:35:26,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,436 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-04 04:35:26,602 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_16-traces-unprot2_true_bound2.i[1086,1099] [2023-08-04 04:35:26,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:35:26,768 INFO L201 MainTranslator]: Completed pre-run [2023-08-04 04:35:26,781 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/goblint-regression_36-apron_16-traces-unprot2_true_bound2.i[1086,1099] [2023-08-04 04:35:26,790 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-04 04:35:26,792 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-04 04:35:26,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-04 04:35:26,841 INFO L206 MainTranslator]: Completed translation [2023-08-04 04:35:26,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26 WrapperNode [2023-08-04 04:35:26,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-04 04:35:26,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-04 04:35:26,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-04 04:35:26,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-04 04:35:26,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,873 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-08-04 04:35:26,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-04 04:35:26,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-04 04:35:26,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-04 04:35:26,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-04 04:35:26,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-04 04:35:26,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-04 04:35:26,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-04 04:35:26,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-04 04:35:26,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (1/1) ... [2023-08-04 04:35:26,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-04 04:35:26,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-04 04:35:26,934 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 04:35:26,948 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 04:35:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-04 04:35:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-04 04:35:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-04 04:35:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-04 04:35:26,979 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-04 04:35:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-04 04:35:26,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-04 04:35:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-04 04:35:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-04 04:35:26,982 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 04:35:27,118 INFO L236 CfgBuilder]: Building ICFG [2023-08-04 04:35:27,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-04 04:35:27,273 INFO L277 CfgBuilder]: Performing block encoding [2023-08-04 04:35:27,279 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-04 04:35:27,279 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-04 04:35:27,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:35:27 BoogieIcfgContainer [2023-08-04 04:35:27,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-04 04:35:27,285 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-04 04:35:27,285 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-04 04:35:27,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-04 04:35:27,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.08 04:35:26" (1/3) ... [2023-08-04 04:35:27,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc43b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:35:27, skipping insertion in model container [2023-08-04 04:35:27,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.08 04:35:26" (2/3) ... [2023-08-04 04:35:27,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc43b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 04:35:27, skipping insertion in model container [2023-08-04 04:35:27,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 04:35:27" (3/3) ... [2023-08-04 04:35:27,290 INFO L112 eAbstractionObserver]: Analyzing ICFG goblint-regression_36-apron_16-traces-unprot2_true_bound2.i [2023-08-04 04:35:27,298 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-04 04:35:27,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-04 04:35:27,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-04 04:35:27,308 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-04 04:35:27,362 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 04:35:27,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 56 transitions, 117 flow [2023-08-04 04:35:27,450 INFO L124 PetriNetUnfolderBase]: 4/78 cut-off events. [2023-08-04 04:35:27,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:27,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 4/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-04 04:35:27,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 56 transitions, 117 flow [2023-08-04 04:35:27,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 47 transitions, 97 flow [2023-08-04 04:35:27,460 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:35:27,473 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 47 transitions, 97 flow [2023-08-04 04:35:27,477 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 47 transitions, 97 flow [2023-08-04 04:35:27,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 47 transitions, 97 flow [2023-08-04 04:35:27,499 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2023-08-04 04:35:27,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:27,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 2/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2023-08-04 04:35:27,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 114 [2023-08-04 04:35:28,986 INFO L134 LiptonReduction]: Checked pairs total: 76 [2023-08-04 04:35:28,987 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-04 04:35:29,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:35:29,010 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;@33579f83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:35:29,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 04:35:29,016 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:35:29,016 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-04 04:35:29,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:29,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:35:29,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-04 04:35:29,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:35:29,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:35:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash 6463, now seen corresponding path program 1 times [2023-08-04 04:35:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:35:29,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481659968] [2023-08-04 04:35:29,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:35:29,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:35:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:35:29,197 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 04:35:29,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:35:29,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481659968] [2023-08-04 04:35:29,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481659968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:35:29,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:35:29,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-04 04:35:29,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144994046] [2023-08-04 04:35:29,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:35:29,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-04 04:35:29,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:35:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-04 04:35:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-04 04:35:29,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2023-08-04 04:35:29,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 6 transitions, 15 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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 04:35:29,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:35:29,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2023-08-04 04:35:29,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:35:29,256 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2023-08-04 04:35:29,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:29,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 10 events. 2/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 2 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-04 04:35:29,258 INFO L140 encePairwiseOnDemand]: 97/98 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-08-04 04:35:29,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 5 transitions, 23 flow [2023-08-04 04:35:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-04 04:35:29,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-04 04:35:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 110 transitions. [2023-08-04 04:35:29,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5612244897959183 [2023-08-04 04:35:29,272 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 110 transitions. [2023-08-04 04:35:29,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 110 transitions. [2023-08-04 04:35:29,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:35:29,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 110 transitions. [2023-08-04 04:35:29,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 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 04:35:29,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 04:35:29,285 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 04:35:29,287 INFO L175 Difference]: Start difference. First operand has 9 places, 6 transitions, 15 flow. Second operand 2 states and 110 transitions. [2023-08-04 04:35:29,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 5 transitions, 23 flow [2023-08-04 04:35:29,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 5 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:35:29,291 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2023-08-04 04:35:29,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2023-08-04 04:35:29,295 INFO L281 CegarLoopForPetriNet]: 9 programPoint places, 0 predicate places. [2023-08-04 04:35:29,296 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2023-08-04 04:35:29,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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 04:35:29,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-08-04 04:35:29,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-04 04:35:29,299 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:35:29,308 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2023-08-04 04:35:29,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 56 transitions, 117 flow [2023-08-04 04:35:29,323 INFO L124 PetriNetUnfolderBase]: 4/78 cut-off events. [2023-08-04 04:35:29,323 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:29,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 78 events. 4/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-04 04:35:29,324 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 56 transitions, 117 flow [2023-08-04 04:35:29,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 38 transitions, 81 flow [2023-08-04 04:35:29,324 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:35:29,325 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 38 transitions, 81 flow [2023-08-04 04:35:29,325 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 38 transitions, 81 flow [2023-08-04 04:35:29,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-08-04 04:35:29,332 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2023-08-04 04:35:29,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:29,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 42 events. 0/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-04 04:35:29,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 60 [2023-08-04 04:35:30,580 INFO L134 LiptonReduction]: Checked pairs total: 43 [2023-08-04 04:35:30,581 INFO L136 LiptonReduction]: Total number of compositions: 36 [2023-08-04 04:35:30,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-04 04:35:30,584 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;@33579f83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:35:30,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 04:35:30,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:35:30,586 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-04 04:35:30,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:30,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:35:30,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-04 04:35:30,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-04 04:35:30,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:35:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash 7251432, now seen corresponding path program 1 times [2023-08-04 04:35:30,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:35:30,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381149627] [2023-08-04 04:35:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:35:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:35:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:35:30,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-04 04:35:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-04 04:35:30,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-04 04:35:30,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-04 04:35:30,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-04 04:35:30,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-04 04:35:30,639 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:35:30,640 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-04 04:35:30,640 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-04 04:35:30,640 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-04 04:35:30,651 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-04 04:35:30,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 132 flow [2023-08-04 04:35:30,683 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2023-08-04 04:35:30,683 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-04 04:35:30,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 6/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 136 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 79. Up to 6 conditions per place. [2023-08-04 04:35:30,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 132 flow [2023-08-04 04:35:30,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 110 flow [2023-08-04 04:35:30,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:35:30,691 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 110 flow [2023-08-04 04:35:30,691 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 110 flow [2023-08-04 04:35:30,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 110 flow [2023-08-04 04:35:30,710 INFO L124 PetriNetUnfolderBase]: 3/84 cut-off events. [2023-08-04 04:35:30,710 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-04 04:35:30,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 84 events. 3/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2023-08-04 04:35:30,711 INFO L119 LiptonReduction]: Number of co-enabled transitions 252 [2023-08-04 04:35:31,898 INFO L134 LiptonReduction]: Checked pairs total: 192 [2023-08-04 04:35:31,898 INFO L136 LiptonReduction]: Total number of compositions: 43 [2023-08-04 04:35:31,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-04 04:35:31,901 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;@33579f83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:35:31,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 04:35:31,902 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:35:31,902 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-04 04:35:31,902 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-04 04:35:31,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:35:31,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-04 04:35:31,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-04 04:35:31,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:35:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash 11038, now seen corresponding path program 1 times [2023-08-04 04:35:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:35:31,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875265169] [2023-08-04 04:35:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:35:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:35:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:35:31,923 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 04:35:31,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:35:31,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875265169] [2023-08-04 04:35:31,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875265169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:35:31,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:35:31,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-04 04:35:31,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275446794] [2023-08-04 04:35:31,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:35:31,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-04 04:35:31,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:35:31,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-04 04:35:31,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-04 04:35:31,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 103 [2023-08-04 04:35:31,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 9 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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 04:35:31,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:35:31,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 103 [2023-08-04 04:35:31,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:35:31,940 INFO L124 PetriNetUnfolderBase]: 12/35 cut-off events. [2023-08-04 04:35:31,940 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-04 04:35:31,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 35 events. 12/35 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 12 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 27. Up to 33 conditions per place. [2023-08-04 04:35:31,941 INFO L140 encePairwiseOnDemand]: 102/103 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-04 04:35:31,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 8 transitions, 38 flow [2023-08-04 04:35:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-04 04:35:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-04 04:35:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 118 transitions. [2023-08-04 04:35:31,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5728155339805825 [2023-08-04 04:35:31,943 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 118 transitions. [2023-08-04 04:35:31,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 118 transitions. [2023-08-04 04:35:31,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:35:31,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 118 transitions. [2023-08-04 04:35:31,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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 04:35:31,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 04:35:31,945 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 04:35:31,945 INFO L175 Difference]: Start difference. First operand has 14 places, 9 transitions, 26 flow. Second operand 2 states and 118 transitions. [2023-08-04 04:35:31,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 8 transitions, 38 flow [2023-08-04 04:35:31,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 8 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-04 04:35:31,946 INFO L231 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2023-08-04 04:35:31,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2023-08-04 04:35:31,947 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, 0 predicate places. [2023-08-04 04:35:31,947 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 0 transitions, 0 flow [2023-08-04 04:35:31,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 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 04:35:31,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-08-04 04:35:31,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-04 04:35:31,948 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:35:31,949 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2023-08-04 04:35:31,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 132 flow [2023-08-04 04:35:31,962 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2023-08-04 04:35:31,962 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-04 04:35:31,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 109 events. 6/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 136 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 79. Up to 6 conditions per place. [2023-08-04 04:35:31,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 132 flow [2023-08-04 04:35:31,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 42 transitions, 96 flow [2023-08-04 04:35:31,963 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-04 04:35:31,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 42 transitions, 96 flow [2023-08-04 04:35:31,963 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 42 transitions, 96 flow [2023-08-04 04:35:31,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 42 transitions, 96 flow [2023-08-04 04:35:31,969 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2023-08-04 04:35:31,969 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-04 04:35:31,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 0/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-04 04:35:31,970 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-08-04 04:35:33,250 INFO L134 LiptonReduction]: Checked pairs total: 116 [2023-08-04 04:35:33,250 INFO L136 LiptonReduction]: Total number of compositions: 37 [2023-08-04 04:35:33,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-04 04:35:33,252 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;@33579f83, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-04 04:35:33,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-04 04:35:33,254 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-04 04:35:33,255 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-04 04:35:33,255 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-04 04:35:33,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-04 04:35:33,255 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2023-08-04 04:35:33,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-04 04:35:33,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-04 04:35:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash 67616974, now seen corresponding path program 1 times [2023-08-04 04:35:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-04 04:35:33,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596864095] [2023-08-04 04:35:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-04 04:35:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-04 04:35:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-04 04:35:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-04 04:35:33,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-04 04:35:33,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596864095] [2023-08-04 04:35:33,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596864095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-04 04:35:33,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-04 04:35:33,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-04 04:35:33,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798494046] [2023-08-04 04:35:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-04 04:35:33,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-04 04:35:33,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-04 04:35:33,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-04 04:35:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-04 04:35:33,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 97 [2023-08-04 04:35:33,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 8 transitions, 28 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 04:35:33,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-04 04:35:33,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 97 [2023-08-04 04:35:33,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-04 04:35:33,429 INFO L124 PetriNetUnfolderBase]: 3/15 cut-off events. [2023-08-04 04:35:33,429 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-04 04:35:33,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 15 events. 3/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 15 event pairs, 0 based on Foata normal form. 4/18 useless extension candidates. Maximal degree in co-relation 15. Up to 9 conditions per place. [2023-08-04 04:35:33,430 INFO L140 encePairwiseOnDemand]: 95/97 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-04 04:35:33,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 8 transitions, 38 flow [2023-08-04 04:35:33,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-04 04:35:33,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-04 04:35:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2023-08-04 04:35:33,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5463917525773195 [2023-08-04 04:35:33,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 212 transitions. [2023-08-04 04:35:33,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 212 transitions. [2023-08-04 04:35:33,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-04 04:35:33,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 212 transitions. [2023-08-04 04:35:33,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 04:35:33,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 04:35:33,447 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 04:35:33,447 INFO L175 Difference]: Start difference. First operand has 13 places, 8 transitions, 28 flow. Second operand 4 states and 212 transitions. [2023-08-04 04:35:33,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 8 transitions, 38 flow [2023-08-04 04:35:33,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 8 transitions, 37 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-04 04:35:33,448 INFO L231 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2023-08-04 04:35:33,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2023-08-04 04:35:33,450 INFO L281 CegarLoopForPetriNet]: 13 programPoint places, 1 predicate places. [2023-08-04 04:35:33,451 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 0 transitions, 0 flow [2023-08-04 04:35:33,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 04:35:33,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-04 04:35:33,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-04 04:35:33,452 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-04 04:35:33,453 INFO L307 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2023-08-04 04:35:33,453 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-04 04:35:33,453 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-04 04:35:33,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 04:35:33 BasicIcfg [2023-08-04 04:35:33,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-04 04:35:33,463 INFO L158 Benchmark]: Toolchain (without parser) took 7078.25ms. Allocated memory is still 526.4MB. Free memory was 473.9MB in the beginning and 385.7MB in the end (delta: 88.2MB). Peak memory consumption was 90.9MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,463 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 337.6MB. Free memory was 288.7MB in the beginning and 288.6MB in the end (delta: 155.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-04 04:35:33,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.52ms. Allocated memory is still 526.4MB. Free memory was 473.9MB in the beginning and 455.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.58ms. Allocated memory is still 526.4MB. Free memory was 455.1MB in the beginning and 453.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,464 INFO L158 Benchmark]: Boogie Preprocessor took 21.08ms. Allocated memory is still 526.4MB. Free memory was 453.4MB in the beginning and 451.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,465 INFO L158 Benchmark]: RCFGBuilder took 385.43ms. Allocated memory is still 526.4MB. Free memory was 451.7MB in the beginning and 440.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,465 INFO L158 Benchmark]: TraceAbstraction took 6178.16ms. Allocated memory is still 526.4MB. Free memory was 439.5MB in the beginning and 385.7MB in the end (delta: 53.9MB). Peak memory consumption was 55.3MB. Max. memory is 16.0GB. [2023-08-04 04:35:33,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 337.6MB. Free memory was 288.7MB in the beginning and 288.6MB in the end (delta: 155.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 454.52ms. Allocated memory is still 526.4MB. Free memory was 473.9MB in the beginning and 455.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.58ms. Allocated memory is still 526.4MB. Free memory was 455.1MB in the beginning and 453.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.08ms. Allocated memory is still 526.4MB. Free memory was 453.4MB in the beginning and 451.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 385.43ms. Allocated memory is still 526.4MB. Free memory was 451.7MB in the beginning and 440.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 6178.16ms. Allocated memory is still 526.4MB. Free memory was 439.5MB in the beginning and 385.7MB in the end (delta: 53.9MB). Peak memory consumption was 55.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 49 PlacesBefore, 9 PlacesAfterwards, 47 TransitionsBefore, 6 TransitionsAfterwards, 114 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 76 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 56, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 76, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 56, unknown conditional: 0, unknown unconditional: 56] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 41 PlacesBefore, 8 PlacesAfterwards, 38 TransitionsBefore, 5 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 43, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 55 PlacesBefore, 14 PlacesAfterwards, 51 TransitionsBefore, 9 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 192 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 192, independent: 192, independent conditional: 0, independent unconditional: 192, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 122, independent: 122, independent conditional: 0, independent unconditional: 122, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 192, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 122, unknown conditional: 0, unknown unconditional: 122] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 47 PlacesBefore, 13 PlacesAfterwards, 42 TransitionsBefore, 8 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 37 TotalNumberOfCompositions, 116 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 116, independent: 116, independent conditional: 0, independent unconditional: 116, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 70, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 116, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 70, unknown conditional: 0, unknown unconditional: 70] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 59 locations, 2 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: 1.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 1 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 63 locations, 2 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 1 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 59 locations, 2 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 63 locations, 2 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: 1.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 5/5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-04 04:35:33,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...