/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_floatingpointinfluence_no-floats_file-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:27:35,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:27:35,599 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 21:27:35,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:27:35,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:27:35,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:27:35,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:27:35,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:27:35,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:27:35,621 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:27:35,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:27:35,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:27:35,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:27:35,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:27:35,622 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:27:35,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:27:35,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:27:35,627 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:27:35,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:27:35,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:27:35,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:27:35,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:27:35,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:27:35,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:27:35,628 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:27:35,629 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:27:35,629 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:27:35,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:27:35,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:27:35,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:27:35,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:27:35,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:27:35,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:27:35,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:27:35,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:27:35,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:27:35,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:27:35,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:27:35,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:35,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:27:35,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:27:35,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:27:35,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:27:35,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:27:35,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-02 21:27:37,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:27:37,497 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:27:37,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-02 21:27:37,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898fa7c02/7e7e23e9f27c4c71822de462a0731b22/FLAG375e23a2b [2024-11-02 21:27:37,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898fa7c02/7e7e23e9f27c4c71822de462a0731b22 [2024-11-02 21:27:37,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:27:37,521 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:27:37,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:27:37,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:27:37,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:27:37,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ffbff58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37, skipping insertion in model container [2024-11-02 21:27:37,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,547 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:27:37,670 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_floatingpointinfluence_no-floats_file-7.i[915,928] [2024-11-02 21:27:37,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:27:37,712 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:27:37,721 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_floatingpointinfluence_no-floats_file-7.i[915,928] [2024-11-02 21:27:37,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:27:37,750 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:27:37,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37 WrapperNode [2024-11-02 21:27:37,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:27:37,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:27:37,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:27:37,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:27:37,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,785 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-02 21:27:37,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:27:37,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:27:37,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:27:37,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:27:37,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,807 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 21:27:37,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:27:37,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:27:37,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:27:37,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:27:37,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (1/1) ... [2024-11-02 21:27:37,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:27:37,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:37,876 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 21:27:37,879 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 21:27:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:27:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:27:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:27:37,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:27:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:27:37,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:27:37,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:27:37,980 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:27:38,210 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 21:27:38,211 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:27:38,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:27:38,222 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:27:38,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:38 BoogieIcfgContainer [2024-11-02 21:27:38,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:27:38,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:27:38,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:27:38,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:27:38,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:27:37" (1/3) ... [2024-11-02 21:27:38,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a878e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:38, skipping insertion in model container [2024-11-02 21:27:38,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:27:37" (2/3) ... [2024-11-02 21:27:38,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a878e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:27:38, skipping insertion in model container [2024-11-02 21:27:38,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:27:38" (3/3) ... [2024-11-02 21:27:38,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-7.i [2024-11-02 21:27:38,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:27:38,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:27:38,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:27:38,313 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;@2b8d3e1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:27:38,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:27:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 21:27:38,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-02 21:27:38,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:27:38,327 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:27:38,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:27:38,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:27:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1710571826, now seen corresponding path program 1 times [2024-11-02 21:27:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:27:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202077192] [2024-11-02 21:27:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:27:38,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:38,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:38,346 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 21:27:38,352 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 21:27:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:27:38,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:27:38,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:27:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-02 21:27:38,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:27:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-02 21:27:38,633 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:27:38,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202077192] [2024-11-02 21:27:38,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1202077192] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:27:38,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:27:38,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:27:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125108758] [2024-11-02 21:27:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:27:38,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:27:38,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:27:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:27:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:27:38,669 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 21:27:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:27:38,687 INFO L93 Difference]: Finished difference Result 89 states and 153 transitions. [2024-11-02 21:27:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:27:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2024-11-02 21:27:38,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:27:38,719 INFO L225 Difference]: With dead ends: 89 [2024-11-02 21:27:38,719 INFO L226 Difference]: Without dead ends: 44 [2024-11-02 21:27:38,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 186 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 21:27:38,731 INFO L432 NwaCegarLoop]: 64 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, 64 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 21:27:38,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:27:38,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-02 21:27:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-02 21:27:38,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-02 21:27:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2024-11-02 21:27:38,767 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 94 [2024-11-02 21:27:38,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:27:38,768 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2024-11-02 21:27:38,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 21:27:38,768 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2024-11-02 21:27:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-02 21:27:38,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:27:38,771 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:27:38,788 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 21:27:38,972 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 21:27:38,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:27:38,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:27:38,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1154549772, now seen corresponding path program 1 times [2024-11-02 21:27:38,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:27:38,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924762637] [2024-11-02 21:27:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:27:38,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:38,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:38,976 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 21:27:38,978 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 21:27:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:27:39,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 21:27:39,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:27:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-02 21:27:43,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:27:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 21:27:51,269 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:27:51,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924762637] [2024-11-02 21:27:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1924762637] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:27:51,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:27:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2024-11-02 21:27:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843606777] [2024-11-02 21:27:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:27:51,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:27:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:27:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:27:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-02 21:27:51,272 INFO L87 Difference]: Start difference. First operand 44 states and 64 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:27:51,480 INFO L93 Difference]: Finished difference Result 74 states and 100 transitions. [2024-11-02 21:27:51,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 21:27:51,481 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2024-11-02 21:27:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:27:51,482 INFO L225 Difference]: With dead ends: 74 [2024-11-02 21:27:51,482 INFO L226 Difference]: Without dead ends: 72 [2024-11-02 21:27:51,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-02 21:27:51,484 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 83 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:27:51,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 255 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 21:27:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-02 21:27:51,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 58. [2024-11-02 21:27:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 37 states have internal predecessors, (43), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-02 21:27:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2024-11-02 21:27:51,499 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 94 [2024-11-02 21:27:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:27:51,500 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2024-11-02 21:27:51,500 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:51,500 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2024-11-02 21:27:51,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-02 21:27:51,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:27:51,502 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:27:51,519 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 21:27:51,705 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 21:27:51,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:27:51,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:27:51,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1836792722, now seen corresponding path program 1 times [2024-11-02 21:27:51,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:27:51,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102263004] [2024-11-02 21:27:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:27:51,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:51,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:51,709 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 21:27:51,710 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 21:27:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:27:51,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 21:27:51,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:27:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 21:27:51,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:27:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 21:27:51,839 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:27:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102263004] [2024-11-02 21:27:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2102263004] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:27:51,840 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:27:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 21:27:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560346653] [2024-11-02 21:27:51,840 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:27:51,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 21:27:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:27:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 21:27:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 21:27:51,842 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:27:51,884 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2024-11-02 21:27:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 21:27:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2024-11-02 21:27:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:27:51,889 INFO L225 Difference]: With dead ends: 130 [2024-11-02 21:27:51,889 INFO L226 Difference]: Without dead ends: 82 [2024-11-02 21:27:51,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 21:27:51,891 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 26 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:27:51,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 113 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:27:51,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-02 21:27:51,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-11-02 21:27:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 53 states have internal predecessors, (58), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-02 21:27:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2024-11-02 21:27:51,910 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 95 [2024-11-02 21:27:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:27:51,910 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions. [2024-11-02 21:27:51,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2024-11-02 21:27:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-02 21:27:51,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:27:51,912 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:27:51,927 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 21:27:52,112 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 21:27:52,113 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:27:52,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:27:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1880779568, now seen corresponding path program 1 times [2024-11-02 21:27:52,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:27:52,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984663137] [2024-11-02 21:27:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:27:52,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:52,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:52,116 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 21:27:52,117 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 21:27:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:27:52,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-02 21:27:52,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:27:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-02 21:27:53,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:27:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 21:27:59,243 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:27:59,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984663137] [2024-11-02 21:27:59,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [984663137] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:27:59,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:27:59,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2024-11-02 21:27:59,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552898899] [2024-11-02 21:27:59,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:27:59,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:27:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:27:59,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:27:59,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-02 21:27:59,245 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:27:59,480 INFO L93 Difference]: Finished difference Result 132 states and 169 transitions. [2024-11-02 21:27:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 21:27:59,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-11-02 21:27:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:27:59,482 INFO L225 Difference]: With dead ends: 132 [2024-11-02 21:27:59,482 INFO L226 Difference]: Without dead ends: 130 [2024-11-02 21:27:59,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-02 21:27:59,486 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 59 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 21:27:59,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 372 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 21:27:59,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-02 21:27:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 96. [2024-11-02 21:27:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.1587301587301588) internal successors, (73), 66 states have internal predecessors, (73), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-02 21:27:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2024-11-02 21:27:59,501 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 96 [2024-11-02 21:27:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:27:59,501 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2024-11-02 21:27:59,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:27:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2024-11-02 21:27:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-02 21:27:59,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:27:59,503 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 21:27:59,518 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 21:27:59,706 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 21:27:59,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:27:59,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:27:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash -105772206, now seen corresponding path program 1 times [2024-11-02 21:27:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:27:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979849061] [2024-11-02 21:27:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:27:59,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:27:59,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:27:59,710 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 21:27:59,713 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 21:27:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:27:59,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 21:27:59,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:28:00,847 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-02 21:28:00,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:28:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-02 21:28:07,478 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:28:07,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979849061] [2024-11-02 21:28:07,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1979849061] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:28:07,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:28:07,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-11-02 21:28:07,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105273571] [2024-11-02 21:28:07,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:28:07,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 21:28:07,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:28:07,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 21:28:07,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-02 21:28:07,480 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:28:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:28:07,655 INFO L93 Difference]: Finished difference Result 197 states and 257 transitions. [2024-11-02 21:28:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 21:28:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2024-11-02 21:28:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:28:07,656 INFO L225 Difference]: With dead ends: 197 [2024-11-02 21:28:07,656 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:28:07,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-02 21:28:07,658 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 77 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:28:07,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 316 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 21:28:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:28:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:28:07,659 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 21:28:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:28:07,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2024-11-02 21:28:07,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:28:07,659 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:28:07,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 21:28:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:28:07,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:28:07,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:28:07,679 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 21:28:07,863 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 21:28:07,867 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 21:28:07,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:28:08,190 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:28:08,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:28:08 BoogieIcfgContainer [2024-11-02 21:28:08,203 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:28:08,203 INFO L158 Benchmark]: Toolchain (without parser) took 30682.51ms. Allocated memory was 442.5MB in the beginning and 1.4GB in the end (delta: 919.6MB). Free memory was 389.5MB in the beginning and 1.3GB in the end (delta: -887.9MB). Peak memory consumption was 804.1MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,203 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 235.9MB. Free memory is still 183.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:28:08,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.33ms. Allocated memory is still 442.5MB. Free memory was 389.5MB in the beginning and 374.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.77ms. Allocated memory is still 442.5MB. Free memory was 374.8MB in the beginning and 373.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,204 INFO L158 Benchmark]: Boogie Preprocessor took 41.04ms. Allocated memory is still 442.5MB. Free memory was 373.1MB in the beginning and 370.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,204 INFO L158 Benchmark]: RCFGBuilder took 397.80ms. Allocated memory is still 442.5MB. Free memory was 370.3MB in the beginning and 355.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,204 INFO L158 Benchmark]: TraceAbstraction took 29975.48ms. Allocated memory was 442.5MB in the beginning and 1.4GB in the end (delta: 919.6MB). Free memory was 354.6MB in the beginning and 1.3GB in the end (delta: -922.9MB). Peak memory consumption was 769.5MB. Max. memory is 8.0GB. [2024-11-02 21:28:08,205 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 235.9MB. Free memory is still 183.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.33ms. Allocated memory is still 442.5MB. Free memory was 389.5MB in the beginning and 374.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.77ms. Allocated memory is still 442.5MB. Free memory was 374.8MB in the beginning and 373.1MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.04ms. Allocated memory is still 442.5MB. Free memory was 373.1MB in the beginning and 370.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 397.80ms. Allocated memory is still 442.5MB. Free memory was 370.3MB in the beginning and 355.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 29975.48ms. Allocated memory was 442.5MB in the beginning and 1.4GB in the end (delta: 919.6MB). Free memory was 354.6MB in the beginning and 1.3GB in the end (delta: -922.9MB). Peak memory consumption was 769.5MB. 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.6s, OverallIterations: 5, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 1120 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 745 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 375 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 950 GetRequests, 906 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 27, 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, 49 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 27.2s InterpolantComputationTime, 475 NumberOfCodeBlocks, 475 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 940 ConstructedInterpolants, 0 QuantifiedInterpolants, 1246 SizeOfPredicates, 45 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 4055/4200 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: 102]: Loop Invariant Derived loop invariant: (((var_1_1 == var_1_6) && (var_1_7 == var_1_11)) || (var_1_8 == 0)) - 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_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (last_1_var_1_7 == \old(last_1_var_1_7))) && (last_1_var_1_12 == \old(last_1_var_1_12))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:28:08,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...