/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-13.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:44:36,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:44:36,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 21:44:36,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:44:36,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:44:36,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:44:36,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:44:36,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:44:36,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:44:36,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:44:36,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:44:36,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:44:36,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:44:36,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:44:36,628 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:44:36,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:44:36,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:44:36,631 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:44:36,632 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:44:36,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:44:36,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:44:36,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:44:36,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:44:36,634 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:44:36,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:44:36,635 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:44:36,635 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:44:36,635 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:44:36,635 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:44:36,636 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:44:36,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:44:36,636 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:44:36,636 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:44:36,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:44:36,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:44:36,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:44:36,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:44:36,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:44:36,641 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:44:36,641 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:44:36,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:44:36,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:44:36,642 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:44:36,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:44:36,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:36,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:44:36,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:44:36,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:44:36,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:44:36,917 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:44:36,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-13.i [2024-11-02 21:44:38,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:44:38,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:44:38,615 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-13.i [2024-11-02 21:44:38,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746f836a4/d56a35e0f6094bbb9ea11bbb600a517b/FLAGbc8186c25 [2024-11-02 21:44:38,656 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746f836a4/d56a35e0f6094bbb9ea11bbb600a517b [2024-11-02 21:44:38,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:44:38,661 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:44:38,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:44:38,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:44:38,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:44:38,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:44:38" (1/1) ... [2024-11-02 21:44:38,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee7cead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:38, skipping insertion in model container [2024-11-02 21:44:38,672 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:44:38" (1/1) ... [2024-11-02 21:44:38,697 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:44:38,886 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-13.i[915,928] [2024-11-02 21:44:38,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:44:38,943 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:44:38,955 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-13.i[915,928] [2024-11-02 21:44:38,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:44:39,004 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:44:39,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39 WrapperNode [2024-11-02 21:44:39,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:44:39,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:44:39,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:44:39,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:44:39,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,047 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2024-11-02 21:44:39,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:44:39,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:44:39,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:44:39,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:44:39,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,064 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,077 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-02 21:44:39,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,084 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:44:39,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:44:39,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:44:39,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:44:39,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (1/1) ... [2024-11-02 21:44:39,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:44:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:39,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-02 21:44:39,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-02 21:44:39,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:44:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:44:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:44:39,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:44:39,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:44:39,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:44:39,213 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:44:39,216 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:44:39,441 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 21:44:39,441 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:44:39,453 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:44:39,453 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:44:39,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:44:39 BoogieIcfgContainer [2024-11-02 21:44:39,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:44:39,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:44:39,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:44:39,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:44:39,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:44:38" (1/3) ... [2024-11-02 21:44:39,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305d01d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:44:39, skipping insertion in model container [2024-11-02 21:44:39,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:44:39" (2/3) ... [2024-11-02 21:44:39,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305d01d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:44:39, skipping insertion in model container [2024-11-02 21:44:39,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:44:39" (3/3) ... [2024-11-02 21:44:39,461 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-13.i [2024-11-02 21:44:39,485 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:44:39,486 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:44:39,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:44:39,558 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4d2c6d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:44:39,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:44:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-02 21:44:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-02 21:44:39,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:44:39,571 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:44:39,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:44:39,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:44:39,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1561146326, now seen corresponding path program 1 times [2024-11-02 21:44:39,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:44:39,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137423184] [2024-11-02 21:44:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:44:39,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:39,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:39,590 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) [2024-11-02 21:44:39,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 21:44:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:44:39,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:44:39,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:44:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-02 21:44:39,778 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:44:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-02 21:44:39,880 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:44:39,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137423184] [2024-11-02 21:44:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [137423184] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:44:39,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:44:39,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:44:39,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716683125] [2024-11-02 21:44:39,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:44:39,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:44:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:44:39,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:44:39,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:44:39,922 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 21:44:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:44:39,944 INFO L93 Difference]: Finished difference Result 73 states and 120 transitions. [2024-11-02 21:44:39,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:44:39,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 76 [2024-11-02 21:44:39,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:44:39,953 INFO L225 Difference]: With dead ends: 73 [2024-11-02 21:44:39,953 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 21:44:39,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:44:39,962 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:44:39,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:44:39,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 21:44:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-02 21:44:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-02 21:44:40,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2024-11-02 21:44:40,013 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 76 [2024-11-02 21:44:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:44:40,014 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2024-11-02 21:44:40,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-02 21:44:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-11-02 21:44:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-02 21:44:40,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:44:40,021 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:44:40,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 21:44:40,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:40,222 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:44:40,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:44:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2036403158, now seen corresponding path program 1 times [2024-11-02 21:44:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:44:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097792991] [2024-11-02 21:44:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:44:40,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:40,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:40,226 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) [2024-11-02 21:44:40,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 21:44:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:44:40,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 21:44:40,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:44:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-02 21:44:41,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:44:41,758 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-02 21:44:41,759 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:44:41,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097792991] [2024-11-02 21:44:41,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2097792991] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:44:41,759 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:44:41,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2024-11-02 21:44:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247865446] [2024-11-02 21:44:41,760 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:44:41,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:44:41,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:44:41,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:44:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 21:44:41,765 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:44:41,838 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2024-11-02 21:44:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 21:44:41,839 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2024-11-02 21:44:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:44:41,841 INFO L225 Difference]: With dead ends: 44 [2024-11-02 21:44:41,841 INFO L226 Difference]: Without dead ends: 42 [2024-11-02 21:44:41,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-02 21:44:41,842 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 5 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:44:41,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 188 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:44:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-02 21:44:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-11-02 21:44:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-02 21:44:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-02 21:44:41,858 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 76 [2024-11-02 21:44:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:44:41,862 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-02 21:44:41,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-02 21:44:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-02 21:44:41,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:44:41,866 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:44:41,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 21:44:42,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:42,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:44:42,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:44:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash 890523356, now seen corresponding path program 1 times [2024-11-02 21:44:42,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:44:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046174148] [2024-11-02 21:44:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:44:42,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:42,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:42,071 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:44:42,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 21:44:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:44:42,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-02 21:44:42,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:44:42,556 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-02 21:44:42,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:44:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-02 21:44:42,916 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:44:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046174148] [2024-11-02 21:44:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2046174148] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:44:42,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:44:42,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2024-11-02 21:44:42,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776037647] [2024-11-02 21:44:42,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:44:42,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 21:44:42,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:44:42,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 21:44:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-02 21:44:42,921 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:44:43,089 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2024-11-02 21:44:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 21:44:43,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2024-11-02 21:44:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:44:43,092 INFO L225 Difference]: With dead ends: 54 [2024-11-02 21:44:43,092 INFO L226 Difference]: Without dead ends: 52 [2024-11-02 21:44:43,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-02 21:44:43,094 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 14 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:44:43,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 245 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 21:44:43,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-02 21:44:43,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2024-11-02 21:44:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-02 21:44:43,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2024-11-02 21:44:43,109 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 77 [2024-11-02 21:44:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:44:43,110 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2024-11-02 21:44:43,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2024-11-02 21:44:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-02 21:44:43,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:44:43,114 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:44:43,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 21:44:43,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:43,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:44:43,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:44:43,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1598089375, now seen corresponding path program 1 times [2024-11-02 21:44:43,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:44:43,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778427816] [2024-11-02 21:44:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:44:43,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:43,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:43,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:44:43,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 21:44:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:44:43,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 21:44:43,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:44:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-02 21:44:43,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:44:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-02 21:44:44,189 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:44:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778427816] [2024-11-02 21:44:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1778427816] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:44:44,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:44:44,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-02 21:44:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228415666] [2024-11-02 21:44:44,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:44:44,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:44:44,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:44:44,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:44:44,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-02 21:44:44,191 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:44:44,607 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2024-11-02 21:44:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 21:44:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-11-02 21:44:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:44:44,612 INFO L225 Difference]: With dead ends: 71 [2024-11-02 21:44:44,612 INFO L226 Difference]: Without dead ends: 69 [2024-11-02 21:44:44,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-02 21:44:44,613 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 22 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 21:44:44,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 253 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 21:44:44,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-02 21:44:44,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2024-11-02 21:44:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-02 21:44:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2024-11-02 21:44:44,631 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 78 [2024-11-02 21:44:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:44:44,631 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2024-11-02 21:44:44,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2024-11-02 21:44:44,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-02 21:44:44,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:44:44,635 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:44:44,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 21:44:44,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:44,836 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:44:44,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:44:44,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1599936417, now seen corresponding path program 1 times [2024-11-02 21:44:44,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:44:44,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480362738] [2024-11-02 21:44:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:44:44,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:44,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:44:44,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 21:44:44,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 21:44:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:44:44,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-02 21:44:44,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:44:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-02 21:44:45,103 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:44:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-02 21:44:45,468 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:44:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480362738] [2024-11-02 21:44:45,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1480362738] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:44:45,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:44:45,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-02 21:44:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422462888] [2024-11-02 21:44:45,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:44:45,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:44:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:44:45,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:44:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-02 21:44:45,471 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:44:45,835 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2024-11-02 21:44:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 21:44:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 78 [2024-11-02 21:44:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:44:45,836 INFO L225 Difference]: With dead ends: 62 [2024-11-02 21:44:45,837 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:44:45,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-02 21:44:45,839 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 21:44:45,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 252 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 21:44:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:44:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:44:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-02 21:44:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:44:45,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-11-02 21:44:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:44:45,840 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:44:45,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-02 21:44:45,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:44:45,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:44:45,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:44:45,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 21:44:46,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:44:46,051 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 21:44:46,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:44:46,189 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:44:46,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:44:46 BoogieIcfgContainer [2024-11-02 21:44:46,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:44:46,215 INFO L158 Benchmark]: Toolchain (without parser) took 7555.30ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 235.8MB in the beginning and 183.9MB in the end (delta: 51.9MB). Peak memory consumption was 110.3MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,216 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory was 141.3MB in the beginning and 141.1MB in the end (delta: 155.2kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:44:46,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.94ms. Allocated memory is still 284.2MB. Free memory was 235.5MB in the beginning and 222.1MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 284.2MB. Free memory was 221.8MB in the beginning and 220.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,217 INFO L158 Benchmark]: Boogie Preprocessor took 44.59ms. Allocated memory is still 284.2MB. Free memory was 220.1MB in the beginning and 218.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,217 INFO L158 Benchmark]: RCFGBuilder took 359.67ms. Allocated memory is still 284.2MB. Free memory was 218.0MB in the beginning and 204.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,218 INFO L158 Benchmark]: TraceAbstraction took 6758.85ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 203.7MB in the beginning and 183.9MB in the end (delta: 19.8MB). Peak memory consumption was 77.8MB. Max. memory is 8.0GB. [2024-11-02 21:44:46,220 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory was 141.3MB in the beginning and 141.1MB in the end (delta: 155.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.94ms. Allocated memory is still 284.2MB. Free memory was 235.5MB in the beginning and 222.1MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 284.2MB. Free memory was 221.8MB in the beginning and 220.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.59ms. Allocated memory is still 284.2MB. Free memory was 220.1MB in the beginning and 218.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 359.67ms. Allocated memory is still 284.2MB. Free memory was 218.0MB in the beginning and 204.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 6758.85ms. Allocated memory was 284.2MB in the beginning and 341.8MB in the end (delta: 57.7MB). Free memory was 203.7MB in the beginning and 183.9MB in the end (delta: 19.8MB). Peak memory consumption was 77.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 988 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 721 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 267 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 771 GetRequests, 721 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=3, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 760 ConstructedInterpolants, 6 QuantifiedInterpolants, 1243 SizeOfPredicates, 44 NumberOfNonLiveVariables, 624 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2564/2640 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 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:44:46,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...