/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:56:39,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:56:39,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:56:39,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:56:39,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:56:39,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:56:39,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:56:39,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:56:39,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:56:39,160 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:56:39,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:56:39,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:56:39,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:56:39,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:56:39,162 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:56:39,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:56:39,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:56:39,162 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:56:39,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:56:39,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:56:39,164 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:56:39,165 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:56:39,165 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:56:39,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:56:39,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:56:39,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:56:39,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:56:39,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:56:39,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:56:39,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:39,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:56:39,167 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:56:39,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:56:39,168 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:56:39,168 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:56:39,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:56:39,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:56:39,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:56:39,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:56:39,371 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:56:39,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:40,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:56:40,551 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:56:40,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:40,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423870cee/1d6a6c680f364e09972510b3dfe4b8cf/FLAG12e406bcc [2023-12-16 17:56:40,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/423870cee/1d6a6c680f364e09972510b3dfe4b8cf [2023-12-16 17:56:40,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:56:40,573 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:56:40,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:40,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:56:40,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:56:40,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a73be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40, skipping insertion in model container [2023-12-16 17:56:40,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,603 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:56:40,742 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2023-12-16 17:56:40,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:40,753 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:56:40,805 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c[11956,11969] [2023-12-16 17:56:40,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:40,817 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:56:40,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40 WrapperNode [2023-12-16 17:56:40,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:40,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:40,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:56:40,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:56:40,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,853 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 388 [2023-12-16 17:56:40,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:40,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:56:40,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:56:40,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:56:40,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,883 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]. [2023-12-16 17:56:40,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:56:40,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:56:40,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:56:40,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:56:40,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (1/1) ... [2023-12-16 17:56:40,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:40,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:56:40,925 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) [2023-12-16 17:56:40,967 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 [2023-12-16 17:56:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:56:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:56:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-12-16 17:56:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-12-16 17:56:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-16 17:56:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-16 17:56:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-12-16 17:56:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-12-16 17:56:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-12-16 17:56:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-12-16 17:56:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-12-16 17:56:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-12-16 17:56:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:56:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:56:41,081 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:56:41,083 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:56:41,523 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:56:41,568 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:56:41,568 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:56:41,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:41 BoogieIcfgContainer [2023-12-16 17:56:41,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:56:41,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:56:41,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:56:41,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:56:41,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:56:40" (1/3) ... [2023-12-16 17:56:41,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e3a663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:41, skipping insertion in model container [2023-12-16 17:56:41,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:40" (2/3) ... [2023-12-16 17:56:41,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e3a663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:41, skipping insertion in model container [2023-12-16 17:56:41,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:41" (3/3) ... [2023-12-16 17:56:41,577 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:41,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:56:41,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:56:41,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:56:41,632 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@72df4466, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:56:41,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:56:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 132 states have (on average 1.621212121212121) internal successors, (214), 136 states have internal predecessors, (214), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 17:56:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 17:56:41,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:41,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:41,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash -409509753, now seen corresponding path program 1 times [2023-12-16 17:56:41,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:41,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575520469] [2023-12-16 17:56:41,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:41,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:41,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:41,662 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:41,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:56:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:41,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:41,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:41,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:41,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:41,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575520469] [2023-12-16 17:56:41,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575520469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:41,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:41,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006068888] [2023-12-16 17:56:41,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:41,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:41,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:41,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:41,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:41,820 INFO L87 Difference]: Start difference. First operand has 171 states, 132 states have (on average 1.621212121212121) internal successors, (214), 136 states have internal predecessors, (214), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:56:41,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,943 INFO L93 Difference]: Finished difference Result 348 states and 600 transitions. [2023-12-16 17:56:41,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:41,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-16 17:56:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,957 INFO L225 Difference]: With dead ends: 348 [2023-12-16 17:56:41,957 INFO L226 Difference]: Without dead ends: 177 [2023-12-16 17:56:41,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:41,966 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 18 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 769 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-16 17:56:42,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2023-12-16 17:56:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.5514705882352942) internal successors, (211), 139 states have internal predecessors, (211), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-16 17:56:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 275 transitions. [2023-12-16 17:56:42,016 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 275 transitions. Word has length 14 [2023-12-16 17:56:42,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,017 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 275 transitions. [2023-12-16 17:56:42,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:56:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 275 transitions. [2023-12-16 17:56:42,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 17:56:42,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:42,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:56:42,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash 247426362, now seen corresponding path program 1 times [2023-12-16 17:56:42,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220638625] [2023-12-16 17:56:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:42,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:56:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:42,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220638625] [2023-12-16 17:56:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220638625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001929448] [2023-12-16 17:56:42,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:42,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:42,291 INFO L87 Difference]: Start difference. First operand 175 states and 275 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:56:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,330 INFO L93 Difference]: Finished difference Result 364 states and 574 transitions. [2023-12-16 17:56:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-16 17:56:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,332 INFO L225 Difference]: With dead ends: 364 [2023-12-16 17:56:42,332 INFO L226 Difference]: Without dead ends: 191 [2023-12-16 17:56:42,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:42,334 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 25 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 786 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-12-16 17:56:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2023-12-16 17:56:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.530612244897959) internal successors, (225), 150 states have internal predecessors, (225), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 17:56:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 291 transitions. [2023-12-16 17:56:42,358 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 291 transitions. Word has length 15 [2023-12-16 17:56:42,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,359 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 291 transitions. [2023-12-16 17:56:42,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:56:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 291 transitions. [2023-12-16 17:56:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-16 17:56:42,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:42,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:42,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,563 INFO L85 PathProgramCache]: Analyzing trace with hash 803678296, now seen corresponding path program 1 times [2023-12-16 17:56:42,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356978853] [2023-12-16 17:56:42,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:42,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:56:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:42,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356978853] [2023-12-16 17:56:42,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356978853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:42,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794001412] [2023-12-16 17:56:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:42,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:42,639 INFO L87 Difference]: Start difference. First operand 188 states and 291 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,661 INFO L93 Difference]: Finished difference Result 396 states and 620 transitions. [2023-12-16 17:56:42,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:42,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-12-16 17:56:42,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,663 INFO L225 Difference]: With dead ends: 396 [2023-12-16 17:56:42,663 INFO L226 Difference]: Without dead ends: 217 [2023-12-16 17:56:42,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:42,665 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 22 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:42,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-16 17:56:42,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 190. [2023-12-16 17:56:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 1.523489932885906) internal successors, (227), 152 states have internal predecessors, (227), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 17:56:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 293 transitions. [2023-12-16 17:56:42,676 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 293 transitions. Word has length 22 [2023-12-16 17:56:42,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,677 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 293 transitions. [2023-12-16 17:56:42,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:56:42,677 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 293 transitions. [2023-12-16 17:56:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-16 17:56:42,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,678 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:42,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:42,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1522670071, now seen corresponding path program 1 times [2023-12-16 17:56:42,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180638886] [2023-12-16 17:56:42,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:42,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:42,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:56:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:42,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180638886] [2023-12-16 17:56:42,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180638886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741722824] [2023-12-16 17:56:42,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:42,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:42,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:42,990 INFO L87 Difference]: Start difference. First operand 190 states and 293 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:43,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,024 INFO L93 Difference]: Finished difference Result 426 states and 674 transitions. [2023-12-16 17:56:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:43,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-12-16 17:56:43,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,026 INFO L225 Difference]: With dead ends: 426 [2023-12-16 17:56:43,026 INFO L226 Difference]: Without dead ends: 286 [2023-12-16 17:56:43,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:43,028 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 119 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 782 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-16 17:56:43,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 190. [2023-12-16 17:56:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 1.4966442953020134) internal successors, (223), 152 states have internal predecessors, (223), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 17:56:43,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 289 transitions. [2023-12-16 17:56:43,044 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 289 transitions. Word has length 30 [2023-12-16 17:56:43,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,045 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 289 transitions. [2023-12-16 17:56:43,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 289 transitions. [2023-12-16 17:56:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-16 17:56:43,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-12-16 17:56:43,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 17:56:43,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,249 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash -114669019, now seen corresponding path program 1 times [2023-12-16 17:56:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214928066] [2023-12-16 17:56:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:43,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:56:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:43,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:43,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214928066] [2023-12-16 17:56:43,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214928066] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:43,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:43,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:43,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824937502] [2023-12-16 17:56:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:43,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:43,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:43,349 INFO L87 Difference]: Start difference. First operand 190 states and 289 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,374 INFO L93 Difference]: Finished difference Result 371 states and 568 transitions. [2023-12-16 17:56:43,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:43,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-12-16 17:56:43,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,375 INFO L225 Difference]: With dead ends: 371 [2023-12-16 17:56:43,375 INFO L226 Difference]: Without dead ends: 192 [2023-12-16 17:56:43,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:43,377 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1040 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-16 17:56:43,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2023-12-16 17:56:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 1.4899328859060403) internal successors, (222), 152 states have internal predecessors, (222), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-16 17:56:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 288 transitions. [2023-12-16 17:56:43,404 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 288 transitions. Word has length 31 [2023-12-16 17:56:43,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,405 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 288 transitions. [2023-12-16 17:56:43,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 288 transitions. [2023-12-16 17:56:43,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 17:56:43,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,407 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2023-12-16 17:56:43,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:43,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash -793075601, now seen corresponding path program 1 times [2023-12-16 17:56:43,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776511645] [2023-12-16 17:56:43,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:43,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,611 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:43,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:56:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:43,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:43,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776511645] [2023-12-16 17:56:43,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776511645] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:43,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:43,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:56:43,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211959558] [2023-12-16 17:56:43,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:43,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:43,741 INFO L87 Difference]: Start difference. First operand 190 states and 288 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,796 INFO L93 Difference]: Finished difference Result 429 states and 664 transitions. [2023-12-16 17:56:43,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:43,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2023-12-16 17:56:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,798 INFO L225 Difference]: With dead ends: 429 [2023-12-16 17:56:43,798 INFO L226 Difference]: Without dead ends: 249 [2023-12-16 17:56:43,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:43,800 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 90 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 851 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-12-16 17:56:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 243. [2023-12-16 17:56:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 192 states have (on average 1.4635416666666667) internal successors, (281), 195 states have internal predecessors, (281), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 17:56:43,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 367 transitions. [2023-12-16 17:56:43,812 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 367 transitions. Word has length 34 [2023-12-16 17:56:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,813 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 367 transitions. [2023-12-16 17:56:43,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 367 transitions. [2023-12-16 17:56:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:56:43,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,816 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:43,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,019 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2086166001, now seen corresponding path program 2 times [2023-12-16 17:56:44,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413092689] [2023-12-16 17:56:44,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:56:44,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,021 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:44,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:56:44,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:56:44,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:56:44,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:56:44,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413092689] [2023-12-16 17:56:44,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413092689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266247914] [2023-12-16 17:56:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:44,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:44,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:44,087 INFO L87 Difference]: Start difference. First operand 243 states and 367 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,126 INFO L93 Difference]: Finished difference Result 467 states and 725 transitions. [2023-12-16 17:56:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-16 17:56:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,127 INFO L225 Difference]: With dead ends: 467 [2023-12-16 17:56:44,128 INFO L226 Difference]: Without dead ends: 252 [2023-12-16 17:56:44,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,129 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 19 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 765 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-16 17:56:44,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 250. [2023-12-16 17:56:44,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 198 states have (on average 1.4595959595959596) internal successors, (289), 201 states have internal predecessors, (289), 43 states have call successors, (43), 8 states have call predecessors, (43), 8 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-16 17:56:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 375 transitions. [2023-12-16 17:56:44,138 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 375 transitions. Word has length 56 [2023-12-16 17:56:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,138 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 375 transitions. [2023-12-16 17:56:44,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 375 transitions. [2023-12-16 17:56:44,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-16 17:56:44,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,139 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,341 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2063557726, now seen corresponding path program 1 times [2023-12-16 17:56:44,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748431827] [2023-12-16 17:56:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:44,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:56:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 17:56:44,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748431827] [2023-12-16 17:56:44,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1748431827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979298903] [2023-12-16 17:56:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:44,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:44,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:44,445 INFO L87 Difference]: Start difference. First operand 250 states and 375 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,483 INFO L93 Difference]: Finished difference Result 511 states and 777 transitions. [2023-12-16 17:56:44,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2023-12-16 17:56:44,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,486 INFO L225 Difference]: With dead ends: 511 [2023-12-16 17:56:44,486 INFO L226 Difference]: Without dead ends: 289 [2023-12-16 17:56:44,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,488 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 24 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 778 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2023-12-16 17:56:44,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2023-12-16 17:56:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 230 states have (on average 1.4173913043478261) internal successors, (326), 233 states have internal predecessors, (326), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 17:56:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 418 transitions. [2023-12-16 17:56:44,503 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 418 transitions. Word has length 56 [2023-12-16 17:56:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,503 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 418 transitions. [2023-12-16 17:56:44,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:56:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 418 transitions. [2023-12-16 17:56:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-16 17:56:44,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,505 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2023-12-16 17:56:44,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,724 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash 648603620, now seen corresponding path program 1 times [2023-12-16 17:56:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357530701] [2023-12-16 17:56:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,726 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:44,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:56:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-16 17:56:44,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357530701] [2023-12-16 17:56:44,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357530701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:44,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289058886] [2023-12-16 17:56:44,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:44,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,802 INFO L87 Difference]: Start difference. First operand 286 states and 418 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:44,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,826 INFO L93 Difference]: Finished difference Result 522 states and 776 transitions. [2023-12-16 17:56:44,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 74 [2023-12-16 17:56:44,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,827 INFO L225 Difference]: With dead ends: 522 [2023-12-16 17:56:44,827 INFO L226 Difference]: Without dead ends: 288 [2023-12-16 17:56:44,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,829 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1039 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-16 17:56:44,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 286. [2023-12-16 17:56:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 230 states have (on average 1.4043478260869566) internal successors, (323), 233 states have internal predecessors, (323), 46 states have call successors, (46), 9 states have call predecessors, (46), 9 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 17:56:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 415 transitions. [2023-12-16 17:56:44,838 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 415 transitions. Word has length 74 [2023-12-16 17:56:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,838 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 415 transitions. [2023-12-16 17:56:44,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:44,838 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 415 transitions. [2023-12-16 17:56:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 17:56:44,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,839 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:44,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-16 17:56:45,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,041 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash -77908722, now seen corresponding path program 1 times [2023-12-16 17:56:45,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699486425] [2023-12-16 17:56:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,043 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:45,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-16 17:56:45,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:45,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699486425] [2023-12-16 17:56:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699486425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:45,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:45,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135980117] [2023-12-16 17:56:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:45,126 INFO L87 Difference]: Start difference. First operand 286 states and 415 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,168 INFO L93 Difference]: Finished difference Result 559 states and 832 transitions. [2023-12-16 17:56:45,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:45,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2023-12-16 17:56:45,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,170 INFO L225 Difference]: With dead ends: 559 [2023-12-16 17:56:45,170 INFO L226 Difference]: Without dead ends: 330 [2023-12-16 17:56:45,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,171 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 25 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 778 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-12-16 17:56:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2023-12-16 17:56:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 267 states have (on average 1.3670411985018727) internal successors, (365), 270 states have internal predecessors, (365), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-16 17:56:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 463 transitions. [2023-12-16 17:56:45,181 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 463 transitions. Word has length 103 [2023-12-16 17:56:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,182 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 463 transitions. [2023-12-16 17:56:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 463 transitions. [2023-12-16 17:56:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:56:45,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,182 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:45,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:45,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,385 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1056143899, now seen corresponding path program 1 times [2023-12-16 17:56:45,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927510313] [2023-12-16 17:56:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,387 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:45,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:56:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-16 17:56:45,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:45,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927510313] [2023-12-16 17:56:45,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927510313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:45,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:45,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:45,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013891861] [2023-12-16 17:56:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:45,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:45,503 INFO L87 Difference]: Start difference. First operand 327 states and 463 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,550 INFO L93 Difference]: Finished difference Result 585 states and 852 transitions. [2023-12-16 17:56:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:45,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 104 [2023-12-16 17:56:45,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,552 INFO L225 Difference]: With dead ends: 585 [2023-12-16 17:56:45,552 INFO L226 Difference]: Without dead ends: 321 [2023-12-16 17:56:45,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,554 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 15 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 738 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:45,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-16 17:56:45,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-16 17:56:45,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 262 states have (on average 1.3473282442748091) internal successors, (353), 265 states have internal predecessors, (353), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 17:56:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 449 transitions. [2023-12-16 17:56:45,584 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 449 transitions. Word has length 104 [2023-12-16 17:56:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,585 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 449 transitions. [2023-12-16 17:56:45,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 449 transitions. [2023-12-16 17:56:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 17:56:45,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,601 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2023-12-16 17:56:45,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-16 17:56:45,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1309382448, now seen corresponding path program 1 times [2023-12-16 17:56:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051066798] [2023-12-16 17:56:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,806 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:45,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:56:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-16 17:56:45,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:45,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051066798] [2023-12-16 17:56:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051066798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226919691] [2023-12-16 17:56:45,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,899 INFO L87 Difference]: Start difference. First operand 321 states and 449 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:45,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,945 INFO L93 Difference]: Finished difference Result 560 states and 801 transitions. [2023-12-16 17:56:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:45,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 123 [2023-12-16 17:56:45,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,947 INFO L225 Difference]: With dead ends: 560 [2023-12-16 17:56:45,948 INFO L226 Difference]: Without dead ends: 323 [2023-12-16 17:56:45,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:45,949 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 0 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1023 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-16 17:56:45,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2023-12-16 17:56:45,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 262 states have (on average 1.3358778625954197) internal successors, (350), 265 states have internal predecessors, (350), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 17:56:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 446 transitions. [2023-12-16 17:56:45,962 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 446 transitions. Word has length 123 [2023-12-16 17:56:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,962 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 446 transitions. [2023-12-16 17:56:45,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 446 transitions. [2023-12-16 17:56:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 17:56:45,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,963 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:45,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-16 17:56:46,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,167 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1299230210, now seen corresponding path program 1 times [2023-12-16 17:56:46,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961961851] [2023-12-16 17:56:46,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,173 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:46,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:56:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-16 17:56:46,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:46,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961961851] [2023-12-16 17:56:46,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961961851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:46,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:46,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:46,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496774738] [2023-12-16 17:56:46,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:46,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:46,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:46,273 INFO L87 Difference]: Start difference. First operand 321 states and 446 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,320 INFO L93 Difference]: Finished difference Result 523 states and 761 transitions. [2023-12-16 17:56:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:46,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 156 [2023-12-16 17:56:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,322 INFO L225 Difference]: With dead ends: 523 [2023-12-16 17:56:46,322 INFO L226 Difference]: Without dead ends: 319 [2023-12-16 17:56:46,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:46,323 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 13 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 706 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:46,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-16 17:56:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-12-16 17:56:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 261 states have (on average 1.3333333333333333) internal successors, (348), 264 states have internal predecessors, (348), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-16 17:56:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 442 transitions. [2023-12-16 17:56:46,335 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 442 transitions. Word has length 156 [2023-12-16 17:56:46,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,336 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 442 transitions. [2023-12-16 17:56:46,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 442 transitions. [2023-12-16 17:56:46,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 17:56:46,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,337 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:56:46,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:46,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,541 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash -45969848, now seen corresponding path program 1 times [2023-12-16 17:56:46,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145931167] [2023-12-16 17:56:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,557 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:46,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:56:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-12-16 17:56:46,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:46,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145931167] [2023-12-16 17:56:46,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145931167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:46,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:46,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:46,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514251357] [2023-12-16 17:56:46,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:46,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:46,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:46,726 INFO L87 Difference]: Start difference. First operand 319 states and 442 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,771 INFO L93 Difference]: Finished difference Result 463 states and 657 transitions. [2023-12-16 17:56:46,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:46,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 171 [2023-12-16 17:56:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,772 INFO L225 Difference]: With dead ends: 463 [2023-12-16 17:56:46,772 INFO L226 Difference]: Without dead ends: 302 [2023-12-16 17:56:46,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:46,773 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 35 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 687 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-16 17:56:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-12-16 17:56:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 247 states have (on average 1.3238866396761133) internal successors, (327), 250 states have internal predecessors, (327), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 17:56:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 415 transitions. [2023-12-16 17:56:46,783 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 415 transitions. Word has length 171 [2023-12-16 17:56:46,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,783 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 415 transitions. [2023-12-16 17:56:46,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 415 transitions. [2023-12-16 17:56:46,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 17:56:46,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,785 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:56:46,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:46,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,988 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2144494445, now seen corresponding path program 1 times [2023-12-16 17:56:46,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009927294] [2023-12-16 17:56:46,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:56:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,125 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-12-16 17:56:47,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:47,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009927294] [2023-12-16 17:56:47,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009927294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:47,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:47,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:47,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308283210] [2023-12-16 17:56:47,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:47,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:47,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:47,126 INFO L87 Difference]: Start difference. First operand 302 states and 415 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:47,176 INFO L93 Difference]: Finished difference Result 446 states and 630 transitions. [2023-12-16 17:56:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:47,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 173 [2023-12-16 17:56:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:47,178 INFO L225 Difference]: With dead ends: 446 [2023-12-16 17:56:47,178 INFO L226 Difference]: Without dead ends: 283 [2023-12-16 17:56:47,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,179 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 30 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:47,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 691 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-16 17:56:47,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-12-16 17:56:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 231 states have (on average 1.316017316017316) internal successors, (304), 234 states have internal predecessors, (304), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 17:56:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 386 transitions. [2023-12-16 17:56:47,188 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 386 transitions. Word has length 173 [2023-12-16 17:56:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:47,189 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 386 transitions. [2023-12-16 17:56:47,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 386 transitions. [2023-12-16 17:56:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 17:56:47,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:47,190 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:56:47,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 17:56:47,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,393 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash -307436632, now seen corresponding path program 1 times [2023-12-16 17:56:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472570013] [2023-12-16 17:56:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,395 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:56:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-16 17:56:47,510 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:47,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472570013] [2023-12-16 17:56:47,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472570013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:47,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:47,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:47,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410790990] [2023-12-16 17:56:47,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:47,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:47,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,511 INFO L87 Difference]: Start difference. First operand 283 states and 386 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:56:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:47,531 INFO L93 Difference]: Finished difference Result 426 states and 600 transitions. [2023-12-16 17:56:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:47,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 174 [2023-12-16 17:56:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:47,533 INFO L225 Difference]: With dead ends: 426 [2023-12-16 17:56:47,533 INFO L226 Difference]: Without dead ends: 283 [2023-12-16 17:56:47,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,533 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 0 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:47,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1001 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-12-16 17:56:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-12-16 17:56:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 231 states have (on average 1.29004329004329) internal successors, (298), 234 states have internal predecessors, (298), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-16 17:56:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 380 transitions. [2023-12-16 17:56:47,542 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 380 transitions. Word has length 174 [2023-12-16 17:56:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:47,542 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 380 transitions. [2023-12-16 17:56:47,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:56:47,542 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 380 transitions. [2023-12-16 17:56:47,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 17:56:47,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:47,544 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:56:47,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-16 17:56:47,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,747 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2068374447, now seen corresponding path program 1 times [2023-12-16 17:56:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196103311] [2023-12-16 17:56:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:47,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,750 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:47,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:56:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-16 17:56:47,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-12-16 17:56:47,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196103311] [2023-12-16 17:56:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196103311] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:47,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:47,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-12-16 17:56:47,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880682034] [2023-12-16 17:56:47,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:47,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:47,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:47,977 INFO L87 Difference]: Start difference. First operand 283 states and 380 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:48,012 INFO L93 Difference]: Finished difference Result 447 states and 622 transitions. [2023-12-16 17:56:48,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:48,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 181 [2023-12-16 17:56:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:48,013 INFO L225 Difference]: With dead ends: 447 [2023-12-16 17:56:48,013 INFO L226 Difference]: Without dead ends: 262 [2023-12-16 17:56:48,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:48,014 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 20 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:48,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 690 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-12-16 17:56:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-12-16 17:56:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 213 states have (on average 1.2816901408450705) internal successors, (273), 216 states have internal predecessors, (273), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 17:56:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 349 transitions. [2023-12-16 17:56:48,021 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 349 transitions. Word has length 181 [2023-12-16 17:56:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:48,022 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 349 transitions. [2023-12-16 17:56:48,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 349 transitions. [2023-12-16 17:56:48,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-16 17:56:48,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:48,023 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:56:48,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:48,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:48,227 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:48,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2082007262, now seen corresponding path program 1 times [2023-12-16 17:56:48,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:48,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9297298] [2023-12-16 17:56:48,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:48,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:48,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:48,229 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:48,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:56:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:48,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:48,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-16 17:56:48,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:48,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:48,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9297298] [2023-12-16 17:56:48,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9297298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:48,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:48,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:48,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612066006] [2023-12-16 17:56:48,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:48,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:48,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:48,366 INFO L87 Difference]: Start difference. First operand 262 states and 349 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:56:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:48,407 INFO L93 Difference]: Finished difference Result 404 states and 564 transitions. [2023-12-16 17:56:48,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:48,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 205 [2023-12-16 17:56:48,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:48,409 INFO L225 Difference]: With dead ends: 404 [2023-12-16 17:56:48,409 INFO L226 Difference]: Without dead ends: 268 [2023-12-16 17:56:48,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:48,410 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 6 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:48,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 731 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-12-16 17:56:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2023-12-16 17:56:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 216 states have (on average 1.2777777777777777) internal successors, (276), 219 states have internal predecessors, (276), 38 states have call successors, (38), 11 states have call predecessors, (38), 11 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 17:56:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 352 transitions. [2023-12-16 17:56:48,419 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 352 transitions. Word has length 205 [2023-12-16 17:56:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:48,420 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 352 transitions. [2023-12-16 17:56:48,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-16 17:56:48,421 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 352 transitions. [2023-12-16 17:56:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 17:56:48,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:48,423 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-12-16 17:56:48,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:48,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:48,627 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:48,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:48,628 INFO L85 PathProgramCache]: Analyzing trace with hash -629101218, now seen corresponding path program 1 times [2023-12-16 17:56:48,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:48,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64396380] [2023-12-16 17:56:48,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:48,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:48,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:48,629 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:48,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:56:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:48,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:48,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-12-16 17:56:48,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:48,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64396380] [2023-12-16 17:56:48,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64396380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:48,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:48,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:48,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454999696] [2023-12-16 17:56:48,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:48,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:48,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:48,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:48,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:48,767 INFO L87 Difference]: Start difference. First operand 266 states and 352 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:48,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:48,795 INFO L93 Difference]: Finished difference Result 413 states and 571 transitions. [2023-12-16 17:56:48,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:48,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 212 [2023-12-16 17:56:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:48,797 INFO L225 Difference]: With dead ends: 413 [2023-12-16 17:56:48,797 INFO L226 Difference]: Without dead ends: 273 [2023-12-16 17:56:48,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:48,798 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 7 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:48,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 736 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-16 17:56:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2023-12-16 17:56:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 220 states have (on average 1.2727272727272727) internal successors, (280), 223 states have internal predecessors, (280), 38 states have call successors, (38), 12 states have call predecessors, (38), 12 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-16 17:56:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 356 transitions. [2023-12-16 17:56:48,806 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 356 transitions. Word has length 212 [2023-12-16 17:56:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:48,806 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 356 transitions. [2023-12-16 17:56:48,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-12-16 17:56:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 356 transitions. [2023-12-16 17:56:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-16 17:56:48,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:48,808 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2023-12-16 17:56:48,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-16 17:56:49,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,012 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1700211501, now seen corresponding path program 1 times [2023-12-16 17:56:49,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164041951] [2023-12-16 17:56:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,014 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:49,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:56:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-12-16 17:56:49,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:49,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:49,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164041951] [2023-12-16 17:56:49,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164041951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:49,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:49,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863882156] [2023-12-16 17:56:49,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:49,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:49,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:49,145 INFO L87 Difference]: Start difference. First operand 271 states and 356 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:49,174 INFO L93 Difference]: Finished difference Result 415 states and 569 transitions. [2023-12-16 17:56:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:56:49,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 220 [2023-12-16 17:56:49,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:49,176 INFO L225 Difference]: With dead ends: 415 [2023-12-16 17:56:49,176 INFO L226 Difference]: Without dead ends: 270 [2023-12-16 17:56:49,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:49,177 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 7 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 722 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-16 17:56:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-12-16 17:56:49,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 220 states have (on average 1.259090909090909) internal successors, (277), 222 states have internal predecessors, (277), 37 states have call successors, (37), 12 states have call predecessors, (37), 12 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-16 17:56:49,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 351 transitions. [2023-12-16 17:56:49,189 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 351 transitions. Word has length 220 [2023-12-16 17:56:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:49,189 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 351 transitions. [2023-12-16 17:56:49,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 351 transitions. [2023-12-16 17:56:49,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:56:49,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:49,192 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-12-16 17:56:49,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:49,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,396 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1538712576, now seen corresponding path program 1 times [2023-12-16 17:56:49,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871484977] [2023-12-16 17:56:49,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:49,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:56:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-16 17:56:49,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:49,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:49,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871484977] [2023-12-16 17:56:49,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871484977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:49,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:49,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:49,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253502737] [2023-12-16 17:56:49,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:49,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:49,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:49,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:49,532 INFO L87 Difference]: Start difference. First operand 270 states and 351 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:56:49,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:49,543 INFO L93 Difference]: Finished difference Result 413 states and 558 transitions. [2023-12-16 17:56:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:49,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 227 [2023-12-16 17:56:49,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:49,545 INFO L225 Difference]: With dead ends: 413 [2023-12-16 17:56:49,545 INFO L226 Difference]: Without dead ends: 269 [2023-12-16 17:56:49,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:49,546 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 483 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-16 17:56:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2023-12-16 17:56:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 221 states have internal predecessors, (276), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 17:56:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 348 transitions. [2023-12-16 17:56:49,553 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 348 transitions. Word has length 227 [2023-12-16 17:56:49,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:49,553 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 348 transitions. [2023-12-16 17:56:49,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-16 17:56:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 348 transitions. [2023-12-16 17:56:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-16 17:56:49,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:49,555 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-12-16 17:56:49,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:49,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,759 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1032392993, now seen corresponding path program 1 times [2023-12-16 17:56:49,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854442447] [2023-12-16 17:56:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:49,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,761 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:49,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:56:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-12-16 17:56:50,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:50,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:50,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854442447] [2023-12-16 17:56:50,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854442447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:50,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:50,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:50,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399297553] [2023-12-16 17:56:50,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:50,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:50,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:50,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:50,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:50,172 INFO L87 Difference]: Start difference. First operand 269 states and 348 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:56:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:50,355 INFO L93 Difference]: Finished difference Result 590 states and 795 transitions. [2023-12-16 17:56:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 230 [2023-12-16 17:56:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:50,359 INFO L225 Difference]: With dead ends: 590 [2023-12-16 17:56:50,359 INFO L226 Difference]: Without dead ends: 447 [2023-12-16 17:56:50,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:50,360 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 521 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:50,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 723 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:50,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-12-16 17:56:50,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 393. [2023-12-16 17:56:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 318 states have (on average 1.29874213836478) internal successors, (413), 320 states have internal predecessors, (413), 54 states have call successors, (54), 20 states have call predecessors, (54), 20 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 17:56:50,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 521 transitions. [2023-12-16 17:56:50,376 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 521 transitions. Word has length 230 [2023-12-16 17:56:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:50,376 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 521 transitions. [2023-12-16 17:56:50,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:56:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 521 transitions. [2023-12-16 17:56:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-16 17:56:50,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:50,378 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:50,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:50,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:50,580 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:50,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1253081541, now seen corresponding path program 1 times [2023-12-16 17:56:50,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:50,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576846568] [2023-12-16 17:56:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:50,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:50,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:50,582 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:50,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:56:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:50,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:50,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2023-12-16 17:56:50,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:50,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:50,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576846568] [2023-12-16 17:56:50,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576846568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:50,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:50,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:50,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375655571] [2023-12-16 17:56:50,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:50,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:50,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:50,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:50,757 INFO L87 Difference]: Start difference. First operand 393 states and 521 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:50,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:50,798 INFO L93 Difference]: Finished difference Result 853 states and 1178 transitions. [2023-12-16 17:56:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:50,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 256 [2023-12-16 17:56:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:50,807 INFO L225 Difference]: With dead ends: 853 [2023-12-16 17:56:50,807 INFO L226 Difference]: Without dead ends: 633 [2023-12-16 17:56:50,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:50,809 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 162 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:50,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 504 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-12-16 17:56:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 547. [2023-12-16 17:56:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.3318284424379232) internal successors, (590), 447 states have internal predecessors, (590), 74 states have call successors, (74), 29 states have call predecessors, (74), 29 states have return successors, (74), 72 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-16 17:56:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 738 transitions. [2023-12-16 17:56:50,829 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 738 transitions. Word has length 256 [2023-12-16 17:56:50,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:50,829 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 738 transitions. [2023-12-16 17:56:50,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:50,829 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 738 transitions. [2023-12-16 17:56:50,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-16 17:56:50,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:50,831 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:50,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:51,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,035 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:51,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash 377452701, now seen corresponding path program 1 times [2023-12-16 17:56:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222143201] [2023-12-16 17:56:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:51,052 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:51,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:56:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:51,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:51,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-16 17:56:51,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:51,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:51,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222143201] [2023-12-16 17:56:51,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222143201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:51,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:51,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734354195] [2023-12-16 17:56:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:51,344 INFO L87 Difference]: Start difference. First operand 547 states and 738 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:51,414 INFO L93 Difference]: Finished difference Result 1245 states and 1741 transitions. [2023-12-16 17:56:51,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:51,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 257 [2023-12-16 17:56:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:51,417 INFO L225 Difference]: With dead ends: 1245 [2023-12-16 17:56:51,418 INFO L226 Difference]: Without dead ends: 904 [2023-12-16 17:56:51,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:51,419 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 166 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:51,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 521 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-12-16 17:56:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 653. [2023-12-16 17:56:51,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 537 states have (on average 1.3407821229050279) internal successors, (720), 543 states have internal predecessors, (720), 80 states have call successors, (80), 35 states have call predecessors, (80), 35 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 17:56:51,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 880 transitions. [2023-12-16 17:56:51,449 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 880 transitions. Word has length 257 [2023-12-16 17:56:51,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:51,449 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 880 transitions. [2023-12-16 17:56:51,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 880 transitions. [2023-12-16 17:56:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-16 17:56:51,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:51,452 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:51,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-16 17:56:51,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,657 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:51,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:51,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1837145120, now seen corresponding path program 1 times [2023-12-16 17:56:51,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:51,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971380689] [2023-12-16 17:56:51,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:51,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:51,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:51,660 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:51,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:56:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:51,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:51,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-16 17:56:51,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:51,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:51,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971380689] [2023-12-16 17:56:51,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971380689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:51,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:51,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:51,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581589097] [2023-12-16 17:56:51,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:51,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:51,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:51,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:51,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:51,809 INFO L87 Difference]: Start difference. First operand 653 states and 880 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:51,851 INFO L93 Difference]: Finished difference Result 1440 states and 2013 transitions. [2023-12-16 17:56:51,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 258 [2023-12-16 17:56:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:51,855 INFO L225 Difference]: With dead ends: 1440 [2023-12-16 17:56:51,855 INFO L226 Difference]: Without dead ends: 1034 [2023-12-16 17:56:51,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:51,857 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 173 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:51,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 537 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:51,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2023-12-16 17:56:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 755. [2023-12-16 17:56:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 631 states have (on average 1.3565768621236134) internal successors, (856), 641 states have internal predecessors, (856), 84 states have call successors, (84), 39 states have call predecessors, (84), 39 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 17:56:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1024 transitions. [2023-12-16 17:56:51,892 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1024 transitions. Word has length 258 [2023-12-16 17:56:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:51,893 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 1024 transitions. [2023-12-16 17:56:51,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1024 transitions. [2023-12-16 17:56:51,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-16 17:56:51,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:51,895 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:51,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:52,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,099 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:52,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2111904734, now seen corresponding path program 1 times [2023-12-16 17:56:52,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630411360] [2023-12-16 17:56:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:52,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:52,101 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:52,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:56:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:52,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:52,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-16 17:56:52,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:52,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:52,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630411360] [2023-12-16 17:56:52,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630411360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:52,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:52,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:52,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118282830] [2023-12-16 17:56:52,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:52,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:52,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:52,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:52,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:52,264 INFO L87 Difference]: Start difference. First operand 755 states and 1024 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:52,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:52,319 INFO L93 Difference]: Finished difference Result 1237 states and 1724 transitions. [2023-12-16 17:56:52,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:52,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 258 [2023-12-16 17:56:52,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:52,323 INFO L225 Difference]: With dead ends: 1237 [2023-12-16 17:56:52,323 INFO L226 Difference]: Without dead ends: 737 [2023-12-16 17:56:52,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:52,324 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:52,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 480 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-12-16 17:56:52,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 737. [2023-12-16 17:56:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 614 states have (on average 1.3403908794788273) internal successors, (823), 623 states have internal predecessors, (823), 84 states have call successors, (84), 39 states have call predecessors, (84), 38 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:56:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 990 transitions. [2023-12-16 17:56:52,376 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 990 transitions. Word has length 258 [2023-12-16 17:56:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:52,376 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 990 transitions. [2023-12-16 17:56:52,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 990 transitions. [2023-12-16 17:56:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-16 17:56:52,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:52,379 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:52,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:52,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,583 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:52,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:52,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1596524361, now seen corresponding path program 1 times [2023-12-16 17:56:52,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:52,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913862698] [2023-12-16 17:56:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:52,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:52,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:52,585 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:52,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:56:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:52,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:52,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-12-16 17:56:52,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:52,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:52,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913862698] [2023-12-16 17:56:52,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913862698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:52,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:52,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:52,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230608318] [2023-12-16 17:56:52,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:52,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:52,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:52,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:52,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:52,757 INFO L87 Difference]: Start difference. First operand 737 states and 990 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:52,835 INFO L93 Difference]: Finished difference Result 1498 states and 2026 transitions. [2023-12-16 17:56:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 259 [2023-12-16 17:56:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:52,838 INFO L225 Difference]: With dead ends: 1498 [2023-12-16 17:56:52,838 INFO L226 Difference]: Without dead ends: 755 [2023-12-16 17:56:52,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:52,841 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 33 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:52,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 636 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:52,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-12-16 17:56:52,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 755. [2023-12-16 17:56:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 629 states have (on average 1.3227344992050873) internal successors, (832), 638 states have internal predecessors, (832), 84 states have call successors, (84), 42 states have call predecessors, (84), 41 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:56:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 999 transitions. [2023-12-16 17:56:52,876 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 999 transitions. Word has length 259 [2023-12-16 17:56:52,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:52,876 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 999 transitions. [2023-12-16 17:56:52,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 999 transitions. [2023-12-16 17:56:52,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-16 17:56:52,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:52,878 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:52,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:53,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:53,081 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:53,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1197175736, now seen corresponding path program 1 times [2023-12-16 17:56:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:53,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718504222] [2023-12-16 17:56:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:53,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:53,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:53,083 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:53,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:56:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:53,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:56:53,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 54 proven. 92 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-16 17:56:53,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 20 proven. 144 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-12-16 17:56:53,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:53,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718504222] [2023-12-16 17:56:53,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718504222] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:53,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:53,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2023-12-16 17:56:53,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508528273] [2023-12-16 17:56:53,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:53,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-16 17:56:53,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-16 17:56:53,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:56:53,911 INFO L87 Difference]: Start difference. First operand 755 states and 999 transitions. Second operand has 21 states, 21 states have (on average 7.0) internal successors, (147), 18 states have internal predecessors, (147), 5 states have call successors, (29), 8 states have call predecessors, (29), 11 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:55,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:55,022 INFO L93 Difference]: Finished difference Result 1333 states and 1821 transitions. [2023-12-16 17:56:55,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:56:55,023 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.0) internal successors, (147), 18 states have internal predecessors, (147), 5 states have call successors, (29), 8 states have call predecessors, (29), 11 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) Word has length 260 [2023-12-16 17:56:55,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:55,026 INFO L225 Difference]: With dead ends: 1333 [2023-12-16 17:56:55,027 INFO L226 Difference]: Without dead ends: 873 [2023-12-16 17:56:55,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 504 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=1104, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:56:55,028 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 764 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:55,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2741 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:56:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-16 17:56:55,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 770. [2023-12-16 17:56:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 641 states have (on average 1.3166926677067083) internal successors, (844), 650 states have internal predecessors, (844), 84 states have call successors, (84), 44 states have call predecessors, (84), 44 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2023-12-16 17:56:55,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1013 transitions. [2023-12-16 17:56:55,064 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1013 transitions. Word has length 260 [2023-12-16 17:56:55,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:55,064 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1013 transitions. [2023-12-16 17:56:55,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.0) internal successors, (147), 18 states have internal predecessors, (147), 5 states have call successors, (29), 8 states have call predecessors, (29), 11 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:55,064 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1013 transitions. [2023-12-16 17:56:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-16 17:56:55,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:55,066 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:55,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:55,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,270 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:55,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:55,270 INFO L85 PathProgramCache]: Analyzing trace with hash -235561719, now seen corresponding path program 1 times [2023-12-16 17:56:55,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:55,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872650894] [2023-12-16 17:56:55,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:55,271 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:55,272 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:55,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 17:56:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:55,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:55,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2023-12-16 17:56:55,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:55,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:55,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1872650894] [2023-12-16 17:56:55,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1872650894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:55,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:55,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165966968] [2023-12-16 17:56:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:55,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:55,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:55,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:55,427 INFO L87 Difference]: Start difference. First operand 770 states and 1013 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:55,520 INFO L93 Difference]: Finished difference Result 1257 states and 1703 transitions. [2023-12-16 17:56:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:55,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 260 [2023-12-16 17:56:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:55,523 INFO L225 Difference]: With dead ends: 1257 [2023-12-16 17:56:55,523 INFO L226 Difference]: Without dead ends: 766 [2023-12-16 17:56:55,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:55,524 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 31 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:55,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 636 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:55,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-16 17:56:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2023-12-16 17:56:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 638 states have (on average 1.3025078369905956) internal successors, (831), 647 states have internal predecessors, (831), 84 states have call successors, (84), 44 states have call predecessors, (84), 43 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:56:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 998 transitions. [2023-12-16 17:56:55,559 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 998 transitions. Word has length 260 [2023-12-16 17:56:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:55,559 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 998 transitions. [2023-12-16 17:56:55,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:56:55,559 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 998 transitions. [2023-12-16 17:56:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-16 17:56:55,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:55,561 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 7, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:55,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:55,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,765 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:55,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:55,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2015686659, now seen corresponding path program 1 times [2023-12-16 17:56:55,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:55,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306307730] [2023-12-16 17:56:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:55,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:55,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:55,767 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:55,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 17:56:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:55,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:56:55,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 263 proven. 105 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-12-16 17:56:56,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 65 proven. 126 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2023-12-16 17:56:56,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:56,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306307730] [2023-12-16 17:56:56,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306307730] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:56,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:56,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2023-12-16 17:56:56,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431975051] [2023-12-16 17:56:56,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:56,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-16 17:56:56,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:56,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-16 17:56:56,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:56:56,436 INFO L87 Difference]: Start difference. First operand 766 states and 998 transitions. Second operand has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 18 states have internal predecessors, (156), 5 states have call successors, (29), 8 states have call predecessors, (29), 14 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:57,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:57,485 INFO L93 Difference]: Finished difference Result 1312 states and 1760 transitions. [2023-12-16 17:56:57,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:56:57,485 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 18 states have internal predecessors, (156), 5 states have call successors, (29), 8 states have call predecessors, (29), 14 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) Word has length 270 [2023-12-16 17:56:57,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:57,488 INFO L225 Difference]: With dead ends: 1312 [2023-12-16 17:56:57,488 INFO L226 Difference]: Without dead ends: 860 [2023-12-16 17:56:57,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 524 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=1104, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:56:57,489 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 565 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:57,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 2430 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:56:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-12-16 17:56:57,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 772. [2023-12-16 17:56:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 643 states have (on average 1.2986003110419906) internal successors, (835), 652 states have internal predecessors, (835), 84 states have call successors, (84), 45 states have call predecessors, (84), 44 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:56:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1002 transitions. [2023-12-16 17:56:57,525 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1002 transitions. Word has length 270 [2023-12-16 17:56:57,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:57,525 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 1002 transitions. [2023-12-16 17:56:57,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 18 states have internal predecessors, (156), 5 states have call successors, (29), 8 states have call predecessors, (29), 14 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1002 transitions. [2023-12-16 17:56:57,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-16 17:56:57,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:57,527 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:56:57,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:57,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:57,731 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:57,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:57,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1137020266, now seen corresponding path program 1 times [2023-12-16 17:56:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:57,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629589775] [2023-12-16 17:56:57,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:57,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:57,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:57,733 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:57,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 17:56:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:57,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 17:56:57,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 373 proven. 74 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-12-16 17:56:58,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:58,396 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 119 proven. 80 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2023-12-16 17:56:58,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629589775] [2023-12-16 17:56:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629589775] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:58,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:58,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2023-12-16 17:56:58,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241447775] [2023-12-16 17:56:58,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:58,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 17:56:58,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:58,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 17:56:58,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-12-16 17:56:58,398 INFO L87 Difference]: Start difference. First operand 772 states and 1002 transitions. Second operand has 19 states, 19 states have (on average 8.105263157894736) internal successors, (154), 16 states have internal predecessors, (154), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:59,312 INFO L93 Difference]: Finished difference Result 1359 states and 1815 transitions. [2023-12-16 17:56:59,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:56:59,312 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.105263157894736) internal successors, (154), 16 states have internal predecessors, (154), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) Word has length 281 [2023-12-16 17:56:59,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:59,316 INFO L225 Difference]: With dead ends: 1359 [2023-12-16 17:56:59,316 INFO L226 Difference]: Without dead ends: 907 [2023-12-16 17:56:59,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 547 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2023-12-16 17:56:59,317 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 485 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:59,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 2572 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:56:59,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-12-16 17:56:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 779. [2023-12-16 17:56:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 649 states have (on average 1.2942989214175655) internal successors, (840), 658 states have internal predecessors, (840), 84 states have call successors, (84), 46 states have call predecessors, (84), 45 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-16 17:56:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1007 transitions. [2023-12-16 17:56:59,384 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1007 transitions. Word has length 281 [2023-12-16 17:56:59,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:59,384 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1007 transitions. [2023-12-16 17:56:59,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.105263157894736) internal successors, (154), 16 states have internal predecessors, (154), 5 states have call successors, (29), 6 states have call predecessors, (29), 12 states have return successors, (29), 7 states have call predecessors, (29), 5 states have call successors, (29) [2023-12-16 17:56:59,384 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1007 transitions. [2023-12-16 17:56:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-16 17:56:59,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:59,386 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:56:59,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:59,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:59,602 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:59,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash 678129265, now seen corresponding path program 1 times [2023-12-16 17:56:59,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:59,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035822423] [2023-12-16 17:56:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:59,603 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:56:59,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:59,610 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:56:59,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 17:56:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:59,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:59,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-12-16 17:56:59,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:59,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:59,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035822423] [2023-12-16 17:56:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035822423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097033852] [2023-12-16 17:56:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:59,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:59,829 INFO L87 Difference]: Start difference. First operand 779 states and 1007 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-16 17:56:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:59,995 INFO L93 Difference]: Finished difference Result 1482 states and 2058 transitions. [2023-12-16 17:56:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:59,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 290 [2023-12-16 17:56:59,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:00,001 INFO L225 Difference]: With dead ends: 1482 [2023-12-16 17:57:00,001 INFO L226 Difference]: Without dead ends: 1030 [2023-12-16 17:57:00,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:57:00,003 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 124 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:00,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1738 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-16 17:57:00,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 818. [2023-12-16 17:57:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 679 states have (on average 1.3004418262150221) internal successors, (883), 688 states have internal predecessors, (883), 93 states have call successors, (93), 46 states have call predecessors, (93), 45 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 17:57:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1068 transitions. [2023-12-16 17:57:00,083 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1068 transitions. Word has length 290 [2023-12-16 17:57:00,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:00,084 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1068 transitions. [2023-12-16 17:57:00,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-16 17:57:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1068 transitions. [2023-12-16 17:57:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-16 17:57:00,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:00,086 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:57:00,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:00,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:00,290 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:00,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:00,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1152285715, now seen corresponding path program 1 times [2023-12-16 17:57:00,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:00,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046304965] [2023-12-16 17:57:00,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:00,291 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:00,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:00,292 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:00,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 17:57:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:00,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:57:00,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 27 proven. 162 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-12-16 17:57:00,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 17:57:01,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:01,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046304965] [2023-12-16 17:57:01,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046304965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:01,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:01,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-12-16 17:57:01,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328507147] [2023-12-16 17:57:01,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:01,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-16 17:57:01,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-16 17:57:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-12-16 17:57:01,046 INFO L87 Difference]: Start difference. First operand 818 states and 1068 transitions. Second operand has 19 states, 19 states have (on average 10.473684210526315) internal successors, (199), 17 states have internal predecessors, (199), 7 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:02,675 INFO L93 Difference]: Finished difference Result 2651 states and 3761 transitions. [2023-12-16 17:57:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 17:57:02,675 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.473684210526315) internal successors, (199), 17 states have internal predecessors, (199), 7 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) Word has length 290 [2023-12-16 17:57:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:02,686 INFO L225 Difference]: With dead ends: 2651 [2023-12-16 17:57:02,686 INFO L226 Difference]: Without dead ends: 2153 [2023-12-16 17:57:02,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=347, Invalid=1909, Unknown=0, NotChecked=0, Total=2256 [2023-12-16 17:57:02,688 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1651 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:02,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 3312 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 17:57:02,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2023-12-16 17:57:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 1033. [2023-12-16 17:57:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.2792056074766356) internal successors, (1095), 865 states have internal predecessors, (1095), 120 states have call successors, (120), 54 states have call predecessors, (120), 56 states have return successors, (155), 120 states have call predecessors, (155), 119 states have call successors, (155) [2023-12-16 17:57:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1370 transitions. [2023-12-16 17:57:02,808 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1370 transitions. Word has length 290 [2023-12-16 17:57:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:02,808 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1370 transitions. [2023-12-16 17:57:02,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.473684210526315) internal successors, (199), 17 states have internal predecessors, (199), 7 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:57:02,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1370 transitions. [2023-12-16 17:57:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-16 17:57:02,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:02,810 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:57:02,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:03,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:03,014 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:03,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:03,015 INFO L85 PathProgramCache]: Analyzing trace with hash -265230867, now seen corresponding path program 1 times [2023-12-16 17:57:03,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:03,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978242327] [2023-12-16 17:57:03,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:03,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:03,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:03,016 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:03,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 17:57:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:03,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:03,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 40 proven. 147 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-12-16 17:57:03,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 17:57:03,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:03,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978242327] [2023-12-16 17:57:03,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978242327] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:03,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:03,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-12-16 17:57:03,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72831716] [2023-12-16 17:57:03,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:03,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 17:57:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 17:57:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:57:03,682 INFO L87 Difference]: Start difference. First operand 1033 states and 1370 transitions. Second operand has 17 states, 17 states have (on average 11.470588235294118) internal successors, (195), 15 states have internal predecessors, (195), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) [2023-12-16 17:57:05,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:05,209 INFO L93 Difference]: Finished difference Result 2853 states and 4031 transitions. [2023-12-16 17:57:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 17:57:05,209 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 11.470588235294118) internal successors, (195), 15 states have internal predecessors, (195), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) Word has length 290 [2023-12-16 17:57:05,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:05,216 INFO L225 Difference]: With dead ends: 2853 [2023-12-16 17:57:05,216 INFO L226 Difference]: Without dead ends: 2149 [2023-12-16 17:57:05,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=1179, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 17:57:05,218 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 1310 mSDsluCounter, 3566 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:05,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 3958 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 17:57:05,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-12-16 17:57:05,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1161. [2023-12-16 17:57:05,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 961 states have (on average 1.2788761706555671) internal successors, (1229), 969 states have internal predecessors, (1229), 138 states have call successors, (138), 58 states have call predecessors, (138), 61 states have return successors, (185), 140 states have call predecessors, (185), 137 states have call successors, (185) [2023-12-16 17:57:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1552 transitions. [2023-12-16 17:57:05,309 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1552 transitions. Word has length 290 [2023-12-16 17:57:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:05,309 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 1552 transitions. [2023-12-16 17:57:05,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.470588235294118) internal successors, (195), 15 states have internal predecessors, (195), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (34), 8 states have call predecessors, (34), 6 states have call successors, (34) [2023-12-16 17:57:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1552 transitions. [2023-12-16 17:57:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-16 17:57:05,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:05,311 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:57:05,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:05,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:05,514 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:05,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:05,515 INFO L85 PathProgramCache]: Analyzing trace with hash -97340512, now seen corresponding path program 1 times [2023-12-16 17:57:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762431712] [2023-12-16 17:57:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:05,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:05,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:05,516 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:05,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 17:57:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:05,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:57:05,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2023-12-16 17:57:05,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:05,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:05,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762431712] [2023-12-16 17:57:05,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762431712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:05,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:05,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:57:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659856464] [2023-12-16 17:57:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:05,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:57:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:05,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:57:05,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:57:05,709 INFO L87 Difference]: Start difference. First operand 1161 states and 1552 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:57:05,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:05,823 INFO L93 Difference]: Finished difference Result 2170 states and 2936 transitions. [2023-12-16 17:57:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:57:05,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 291 [2023-12-16 17:57:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:05,828 INFO L225 Difference]: With dead ends: 2170 [2023-12-16 17:57:05,828 INFO L226 Difference]: Without dead ends: 1138 [2023-12-16 17:57:05,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:57:05,830 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 8 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:05,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 653 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:05,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2023-12-16 17:57:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2023-12-16 17:57:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 945 states have (on average 1.2656084656084656) internal successors, (1196), 957 states have internal predecessors, (1196), 129 states have call successors, (129), 64 states have call predecessors, (129), 63 states have return successors, (128), 123 states have call predecessors, (128), 128 states have call successors, (128) [2023-12-16 17:57:05,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1453 transitions. [2023-12-16 17:57:05,906 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1453 transitions. Word has length 291 [2023-12-16 17:57:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:05,906 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 1453 transitions. [2023-12-16 17:57:05,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:57:05,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1453 transitions. [2023-12-16 17:57:05,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-12-16 17:57:05,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:05,910 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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] [2023-12-16 17:57:05,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:06,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,114 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:06,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -408375190, now seen corresponding path program 1 times [2023-12-16 17:57:06,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:06,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249455813] [2023-12-16 17:57:06,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:06,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:06,122 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:06,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-16 17:57:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:06,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:57:06,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:06,302 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 835 trivial. 0 not checked. [2023-12-16 17:57:06,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:06,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:06,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249455813] [2023-12-16 17:57:06,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249455813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:06,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:06,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:57:06,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623307086] [2023-12-16 17:57:06,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:06,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:57:06,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:57:06,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:57:06,304 INFO L87 Difference]: Start difference. First operand 1138 states and 1453 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 17:57:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:06,476 INFO L93 Difference]: Finished difference Result 1665 states and 2256 transitions. [2023-12-16 17:57:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:57:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 308 [2023-12-16 17:57:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:06,482 INFO L225 Difference]: With dead ends: 1665 [2023-12-16 17:57:06,482 INFO L226 Difference]: Without dead ends: 1663 [2023-12-16 17:57:06,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:57:06,483 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 175 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:06,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1614 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2023-12-16 17:57:06,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1144. [2023-12-16 17:57:06,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 949 states have (on average 1.2644889357218125) internal successors, (1200), 962 states have internal predecessors, (1200), 130 states have call successors, (130), 65 states have call predecessors, (130), 64 states have return successors, (129), 123 states have call predecessors, (129), 129 states have call successors, (129) [2023-12-16 17:57:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1459 transitions. [2023-12-16 17:57:06,571 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1459 transitions. Word has length 308 [2023-12-16 17:57:06,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:06,572 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1459 transitions. [2023-12-16 17:57:06,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 17:57:06,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1459 transitions. [2023-12-16 17:57:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-16 17:57:06,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:06,573 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 8, 8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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] [2023-12-16 17:57:06,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:06,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,777 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:06,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash 637222838, now seen corresponding path program 1 times [2023-12-16 17:57:06,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:06,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933010752] [2023-12-16 17:57:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:06,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:06,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:06,779 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:06,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 17:57:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:06,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:57:06,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 382 proven. 69 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-12-16 17:57:07,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:07,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:07,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933010752] [2023-12-16 17:57:07,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933010752] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 17:57:07,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [746311558] [2023-12-16 17:57:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:07,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 17:57:07,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 17:57:07,489 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 17:57:07,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-16 17:57:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:07,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:57:07,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:07,910 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 382 proven. 69 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-12-16 17:57:07,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:08,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [746311558] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 17:57:08,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:08,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-12-16 17:57:08,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114532849] [2023-12-16 17:57:08,048 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:08,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:57:08,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:08,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:57:08,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-16 17:57:08,049 INFO L87 Difference]: Start difference. First operand 1144 states and 1459 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 9 states have internal predecessors, (142), 5 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-16 17:57:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:08,342 INFO L93 Difference]: Finished difference Result 2254 states and 2935 transitions. [2023-12-16 17:57:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:57:08,342 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 9 states have internal predecessors, (142), 5 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 316 [2023-12-16 17:57:08,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:08,347 INFO L225 Difference]: With dead ends: 2254 [2023-12-16 17:57:08,347 INFO L226 Difference]: Without dead ends: 1444 [2023-12-16 17:57:08,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 940 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:57:08,349 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 185 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:08,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 2390 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-12-16 17:57:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1153. [2023-12-16 17:57:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 956 states have (on average 1.2625523012552302) internal successors, (1207), 969 states have internal predecessors, (1207), 130 states have call successors, (130), 66 states have call predecessors, (130), 66 states have return successors, (130), 124 states have call predecessors, (130), 129 states have call successors, (130) [2023-12-16 17:57:08,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1467 transitions. [2023-12-16 17:57:08,436 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1467 transitions. Word has length 316 [2023-12-16 17:57:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:08,436 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 1467 transitions. [2023-12-16 17:57:08,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 9 states have internal predecessors, (142), 5 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2023-12-16 17:57:08,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1467 transitions. [2023-12-16 17:57:08,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-16 17:57:08,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:08,439 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 8, 8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 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] [2023-12-16 17:57:08,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 17:57:08,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:08,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 17:57:08,842 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:08,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:08,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1598836855, now seen corresponding path program 1 times [2023-12-16 17:57:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:08,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501404373] [2023-12-16 17:57:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:08,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:08,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:08,846 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:08,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 17:57:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:09,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:57:09,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 776 trivial. 0 not checked. [2023-12-16 17:57:09,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:09,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501404373] [2023-12-16 17:57:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501404373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:09,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:57:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701056561] [2023-12-16 17:57:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:09,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:57:09,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:09,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:57:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:57:09,022 INFO L87 Difference]: Start difference. First operand 1153 states and 1467 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:57:09,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:09,142 INFO L93 Difference]: Finished difference Result 1969 states and 2546 transitions. [2023-12-16 17:57:09,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:57:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 316 [2023-12-16 17:57:09,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:09,159 INFO L225 Difference]: With dead ends: 1969 [2023-12-16 17:57:09,159 INFO L226 Difference]: Without dead ends: 1137 [2023-12-16 17:57:09,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:57:09,162 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 10 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:09,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 650 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2023-12-16 17:57:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2023-12-16 17:57:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 945 states have (on average 1.2476190476190476) internal successors, (1179), 958 states have internal predecessors, (1179), 126 states have call successors, (126), 66 states have call predecessors, (126), 65 states have return successors, (125), 119 states have call predecessors, (125), 125 states have call successors, (125) [2023-12-16 17:57:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1430 transitions. [2023-12-16 17:57:09,259 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1430 transitions. Word has length 316 [2023-12-16 17:57:09,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:09,260 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1430 transitions. [2023-12-16 17:57:09,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:57:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1430 transitions. [2023-12-16 17:57:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-12-16 17:57:09,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:09,262 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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, 1, 1, 1] [2023-12-16 17:57:09,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:09,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:09,465 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:09,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:09,466 INFO L85 PathProgramCache]: Analyzing trace with hash -17734387, now seen corresponding path program 1 times [2023-12-16 17:57:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057872996] [2023-12-16 17:57:09,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:09,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:09,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:09,467 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:09,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-16 17:57:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:09,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:09,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-12-16 17:57:10,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:10,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:10,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057872996] [2023-12-16 17:57:10,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057872996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:10,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:10,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 17:57:10,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977677230] [2023-12-16 17:57:10,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:10,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 17:57:10,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:10,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 17:57:10,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:57:10,139 INFO L87 Difference]: Start difference. First operand 1137 states and 1430 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-16 17:57:10,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:10,891 INFO L93 Difference]: Finished difference Result 2687 states and 3434 transitions. [2023-12-16 17:57:10,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 17:57:10,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 331 [2023-12-16 17:57:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:10,896 INFO L225 Difference]: With dead ends: 2687 [2023-12-16 17:57:10,897 INFO L226 Difference]: Without dead ends: 1916 [2023-12-16 17:57:10,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:57:10,898 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 747 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2021 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:10,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 2021 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2023-12-16 17:57:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1295. [2023-12-16 17:57:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1075 states have (on average 1.241860465116279) internal successors, (1335), 1082 states have internal predecessors, (1335), 144 states have call successors, (144), 76 states have call predecessors, (144), 75 states have return successors, (143), 136 states have call predecessors, (143), 143 states have call successors, (143) [2023-12-16 17:57:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1622 transitions. [2023-12-16 17:57:10,991 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1622 transitions. Word has length 331 [2023-12-16 17:57:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1622 transitions. [2023-12-16 17:57:10,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 9 states have internal predecessors, (123), 4 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-16 17:57:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1622 transitions. [2023-12-16 17:57:10,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-12-16 17:57:10,994 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:10,994 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:10,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:11,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:11,198 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:11,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:11,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1182214523, now seen corresponding path program 1 times [2023-12-16 17:57:11,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:11,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069632732] [2023-12-16 17:57:11,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:11,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:11,200 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:11,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-16 17:57:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:11,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:57:11,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 259 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2023-12-16 17:57:11,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:12,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069632732] [2023-12-16 17:57:12,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069632732] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:12,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:12,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 17:57:12,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012708045] [2023-12-16 17:57:12,150 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:12,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:57:12,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:12,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:57:12,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:57:12,152 INFO L87 Difference]: Start difference. First operand 1295 states and 1622 transitions. Second operand has 9 states, 9 states have (on average 27.555555555555557) internal successors, (248), 9 states have internal predecessors, (248), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:13,115 INFO L93 Difference]: Finished difference Result 4850 states and 6174 transitions. [2023-12-16 17:57:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:57:13,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.555555555555557) internal successors, (248), 9 states have internal predecessors, (248), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) Word has length 345 [2023-12-16 17:57:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:13,125 INFO L225 Difference]: With dead ends: 4850 [2023-12-16 17:57:13,125 INFO L226 Difference]: Without dead ends: 3918 [2023-12-16 17:57:13,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 688 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:57:13,127 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 2571 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:13,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 854 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2023-12-16 17:57:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 2456. [2023-12-16 17:57:13,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 1988 states have (on average 1.2494969818913482) internal successors, (2484), 2006 states have internal predecessors, (2484), 323 states have call successors, (323), 145 states have call predecessors, (323), 144 states have return successors, (322), 304 states have call predecessors, (322), 322 states have call successors, (322) [2023-12-16 17:57:13,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3129 transitions. [2023-12-16 17:57:13,415 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3129 transitions. Word has length 345 [2023-12-16 17:57:13,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:13,416 INFO L495 AbstractCegarLoop]: Abstraction has 2456 states and 3129 transitions. [2023-12-16 17:57:13,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.555555555555557) internal successors, (248), 9 states have internal predecessors, (248), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:13,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3129 transitions. [2023-12-16 17:57:13,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 17:57:13,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:13,418 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:13,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-16 17:57:13,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:13,622 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:13,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash 97530650, now seen corresponding path program 1 times [2023-12-16 17:57:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:13,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825606486] [2023-12-16 17:57:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:13,623 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:13,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:13,624 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:13,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-16 17:57:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:13,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:57:13,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 259 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2023-12-16 17:57:14,351 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:14,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:14,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825606486] [2023-12-16 17:57:14,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825606486] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:14,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:14,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 17:57:14,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137866975] [2023-12-16 17:57:14,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:14,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:57:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:57:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:57:14,511 INFO L87 Difference]: Start difference. First operand 2456 states and 3129 transitions. Second operand has 9 states, 9 states have (on average 27.666666666666668) internal successors, (249), 9 states have internal predecessors, (249), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:15,982 INFO L93 Difference]: Finished difference Result 8575 states and 10967 transitions. [2023-12-16 17:57:15,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:57:15,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.666666666666668) internal successors, (249), 9 states have internal predecessors, (249), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) Word has length 346 [2023-12-16 17:57:15,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:16,005 INFO L225 Difference]: With dead ends: 8575 [2023-12-16 17:57:16,005 INFO L226 Difference]: Without dead ends: 6540 [2023-12-16 17:57:16,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 690 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:57:16,010 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1144 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:16,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1946 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6540 states. [2023-12-16 17:57:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6540 to 3930. [2023-12-16 17:57:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 3128 states have (on average 1.2464833759590792) internal successors, (3899), 3161 states have internal predecessors, (3899), 568 states have call successors, (568), 234 states have call predecessors, (568), 233 states have return successors, (567), 534 states have call predecessors, (567), 567 states have call successors, (567) [2023-12-16 17:57:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 5034 transitions. [2023-12-16 17:57:16,518 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 5034 transitions. Word has length 346 [2023-12-16 17:57:16,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:16,519 INFO L495 AbstractCegarLoop]: Abstraction has 3930 states and 5034 transitions. [2023-12-16 17:57:16,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.666666666666668) internal successors, (249), 9 states have internal predecessors, (249), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 5034 transitions. [2023-12-16 17:57:16,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-16 17:57:16,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:16,522 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:16,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:16,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:16,726 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:16,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1705930846, now seen corresponding path program 1 times [2023-12-16 17:57:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:16,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662610523] [2023-12-16 17:57:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:16,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:16,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:16,728 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-16 17:57:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:16,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:57:16,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 259 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2023-12-16 17:57:17,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:17,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:17,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662610523] [2023-12-16 17:57:17,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662610523] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:17,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:17,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 17:57:17,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995517960] [2023-12-16 17:57:17,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:17,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:57:17,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:17,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:57:17,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:57:17,625 INFO L87 Difference]: Start difference. First operand 3930 states and 5034 transitions. Second operand has 9 states, 9 states have (on average 27.77777777777778) internal successors, (250), 9 states have internal predecessors, (250), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:19,168 INFO L93 Difference]: Finished difference Result 10208 states and 13082 transitions. [2023-12-16 17:57:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 17:57:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 27.77777777777778) internal successors, (250), 9 states have internal predecessors, (250), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) Word has length 347 [2023-12-16 17:57:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:19,185 INFO L225 Difference]: With dead ends: 10208 [2023-12-16 17:57:19,186 INFO L226 Difference]: Without dead ends: 6758 [2023-12-16 17:57:19,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 692 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2023-12-16 17:57:19,192 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 1555 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:19,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 1759 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:19,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6758 states. [2023-12-16 17:57:19,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6758 to 5013. [2023-12-16 17:57:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5013 states, 3963 states have (on average 1.24627807216755) internal successors, (4939), 4007 states have internal predecessors, (4939), 747 states have call successors, (747), 303 states have call predecessors, (747), 302 states have return successors, (746), 702 states have call predecessors, (746), 746 states have call successors, (746) [2023-12-16 17:57:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 6432 transitions. [2023-12-16 17:57:19,871 INFO L78 Accepts]: Start accepts. Automaton has 5013 states and 6432 transitions. Word has length 347 [2023-12-16 17:57:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:19,872 INFO L495 AbstractCegarLoop]: Abstraction has 5013 states and 6432 transitions. [2023-12-16 17:57:19,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 27.77777777777778) internal successors, (250), 9 states have internal predecessors, (250), 7 states have call successors, (47), 5 states have call predecessors, (47), 4 states have return successors, (46), 6 states have call predecessors, (46), 6 states have call successors, (46) [2023-12-16 17:57:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5013 states and 6432 transitions. [2023-12-16 17:57:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-16 17:57:19,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:19,875 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:19,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:20,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:20,080 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:20,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash -113372157, now seen corresponding path program 1 times [2023-12-16 17:57:20,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:20,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515073581] [2023-12-16 17:57:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:20,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:20,083 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:20,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-16 17:57:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:20,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:57:20,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:20,962 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 267 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-12-16 17:57:20,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:21,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515073581] [2023-12-16 17:57:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515073581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:21,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:21,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-16 17:57:21,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934108750] [2023-12-16 17:57:21,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:21,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 17:57:21,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 17:57:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:57:21,411 INFO L87 Difference]: Start difference. First operand 5013 states and 6432 transitions. Second operand has 17 states, 17 states have (on average 15.0) internal successors, (255), 17 states have internal predecessors, (255), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2023-12-16 17:57:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:25,997 INFO L93 Difference]: Finished difference Result 15046 states and 19257 transitions. [2023-12-16 17:57:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-16 17:57:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.0) internal successors, (255), 17 states have internal predecessors, (255), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 348 [2023-12-16 17:57:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:26,021 INFO L225 Difference]: With dead ends: 15046 [2023-12-16 17:57:26,022 INFO L226 Difference]: Without dead ends: 10571 [2023-12-16 17:57:26,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1160 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=820, Invalid=3470, Unknown=0, NotChecked=0, Total=4290 [2023-12-16 17:57:26,029 INFO L413 NwaCegarLoop]: 1403 mSDtfsCounter, 1533 mSDsluCounter, 6648 mSDsCounter, 0 mSdLazyCounter, 3832 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 3832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:26,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 8051 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 3832 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 17:57:26,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2023-12-16 17:57:27,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 6496. [2023-12-16 17:57:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6496 states, 5158 states have (on average 1.250484683986041) internal successors, (6450), 5213 states have internal predecessors, (6450), 946 states have call successors, (946), 392 states have call predecessors, (946), 391 states have return successors, (945), 890 states have call predecessors, (945), 945 states have call successors, (945) [2023-12-16 17:57:27,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6496 states to 6496 states and 8341 transitions. [2023-12-16 17:57:27,071 INFO L78 Accepts]: Start accepts. Automaton has 6496 states and 8341 transitions. Word has length 348 [2023-12-16 17:57:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:27,073 INFO L495 AbstractCegarLoop]: Abstraction has 6496 states and 8341 transitions. [2023-12-16 17:57:27,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.0) internal successors, (255), 17 states have internal predecessors, (255), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2023-12-16 17:57:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6496 states and 8341 transitions. [2023-12-16 17:57:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-16 17:57:27,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:27,088 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:27,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:27,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:27,293 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:27,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:27,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1677101924, now seen corresponding path program 1 times [2023-12-16 17:57:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:27,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903934160] [2023-12-16 17:57:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:27,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:27,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:27,296 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:27,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-16 17:57:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:27,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:57:27,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 272 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2023-12-16 17:57:28,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:28,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903934160] [2023-12-16 17:57:28,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903934160] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:28,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:28,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-16 17:57:28,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476753626] [2023-12-16 17:57:28,588 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:28,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 17:57:28,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:28,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 17:57:28,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:57:28,589 INFO L87 Difference]: Start difference. First operand 6496 states and 8341 transitions. Second operand has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 17 states have internal predecessors, (257), 11 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-12-16 17:57:33,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:33,308 INFO L93 Difference]: Finished difference Result 19134 states and 24479 transitions. [2023-12-16 17:57:33,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-16 17:57:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 17 states have internal predecessors, (257), 11 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) Word has length 348 [2023-12-16 17:57:33,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:33,349 INFO L225 Difference]: With dead ends: 19134 [2023-12-16 17:57:33,349 INFO L226 Difference]: Without dead ends: 13288 [2023-12-16 17:57:33,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=820, Invalid=3470, Unknown=0, NotChecked=0, Total=4290 [2023-12-16 17:57:33,359 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 1880 mSDsluCounter, 6630 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 7957 SdHoareTripleChecker+Invalid, 3800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:33,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 7957 Invalid, 3800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 17:57:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13288 states. [2023-12-16 17:57:34,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13288 to 6754. [2023-12-16 17:57:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6754 states, 5400 states have (on average 1.2540740740740741) internal successors, (6772), 5455 states have internal predecessors, (6772), 954 states have call successors, (954), 400 states have call predecessors, (954), 399 states have return successors, (953), 898 states have call predecessors, (953), 953 states have call successors, (953) [2023-12-16 17:57:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6754 states to 6754 states and 8679 transitions. [2023-12-16 17:57:34,383 INFO L78 Accepts]: Start accepts. Automaton has 6754 states and 8679 transitions. Word has length 348 [2023-12-16 17:57:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:34,384 INFO L495 AbstractCegarLoop]: Abstraction has 6754 states and 8679 transitions. [2023-12-16 17:57:34,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.117647058823529) internal successors, (257), 17 states have internal predecessors, (257), 11 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-12-16 17:57:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6754 states and 8679 transitions. [2023-12-16 17:57:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-16 17:57:34,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:34,388 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:34,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2023-12-16 17:57:34,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:34,590 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:34,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:34,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2106340686, now seen corresponding path program 1 times [2023-12-16 17:57:34,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:34,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810109942] [2023-12-16 17:57:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:34,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:34,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:34,592 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:34,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-16 17:57:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:34,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:57:34,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 268 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2023-12-16 17:57:35,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:35,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:35,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810109942] [2023-12-16 17:57:35,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810109942] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:35,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:35,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-16 17:57:35,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355998251] [2023-12-16 17:57:35,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:35,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 17:57:35,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:35,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 17:57:35,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-16 17:57:35,821 INFO L87 Difference]: Start difference. First operand 6754 states and 8679 transitions. Second operand has 17 states, 17 states have (on average 15.235294117647058) internal successors, (259), 17 states have internal predecessors, (259), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2023-12-16 17:57:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:40,928 INFO L93 Difference]: Finished difference Result 24761 states and 31715 transitions. [2023-12-16 17:57:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-16 17:57:40,928 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.235294117647058) internal successors, (259), 17 states have internal predecessors, (259), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 349 [2023-12-16 17:57:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:40,964 INFO L225 Difference]: With dead ends: 24761 [2023-12-16 17:57:40,964 INFO L226 Difference]: Without dead ends: 18685 [2023-12-16 17:57:40,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 771 GetRequests, 707 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=820, Invalid=3470, Unknown=0, NotChecked=0, Total=4290 [2023-12-16 17:57:40,974 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2952 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 2983 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 5000 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:40,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 5000 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 2983 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 17:57:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18685 states. [2023-12-16 17:57:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18685 to 8281. [2023-12-16 17:57:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8281 states, 6639 states have (on average 1.254405784003615) internal successors, (8328), 6705 states have internal predecessors, (8328), 1153 states have call successors, (1153), 489 states have call predecessors, (1153), 488 states have return successors, (1152), 1086 states have call predecessors, (1152), 1152 states have call successors, (1152) [2023-12-16 17:57:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8281 states to 8281 states and 10633 transitions. [2023-12-16 17:57:42,247 INFO L78 Accepts]: Start accepts. Automaton has 8281 states and 10633 transitions. Word has length 349 [2023-12-16 17:57:42,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:42,248 INFO L495 AbstractCegarLoop]: Abstraction has 8281 states and 10633 transitions. [2023-12-16 17:57:42,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.235294117647058) internal successors, (259), 17 states have internal predecessors, (259), 9 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2023-12-16 17:57:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8281 states and 10633 transitions. [2023-12-16 17:57:42,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-16 17:57:42,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:42,254 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 8, 8, 8, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-12-16 17:57:42,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:42,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:42,460 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:42,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1968380126, now seen corresponding path program 1 times [2023-12-16 17:57:42,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122269252] [2023-12-16 17:57:42,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:42,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:57:42,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:42,462 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:57:42,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-16 17:57:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:42,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:42,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 209 proven. 60 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-12-16 17:57:43,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 902 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-16 17:57:43,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:43,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122269252] [2023-12-16 17:57:43,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122269252] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:43,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:43,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:43,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110182551] [2023-12-16 17:57:43,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:43,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:43,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:43,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:43,440 INFO L87 Difference]: Start difference. First operand 8281 states and 10633 transitions. Second operand has 14 states, 14 states have (on average 18.5) internal successors, (259), 14 states have internal predecessors, (259), 10 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 9 states have call predecessors, (46), 9 states have call successors, (46) [2023-12-16 17:57:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:49,914 INFO L93 Difference]: Finished difference Result 42766 states and 54967 transitions. [2023-12-16 17:57:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-16 17:57:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.5) internal successors, (259), 14 states have internal predecessors, (259), 10 states have call successors, (47), 6 states have call predecessors, (47), 5 states have return successors, (46), 9 states have call predecessors, (46), 9 states have call successors, (46) Word has length 349 [2023-12-16 17:57:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:50,011 INFO L225 Difference]: With dead ends: 42766 [2023-12-16 17:57:50,012 INFO L226 Difference]: Without dead ends: 35254 [2023-12-16 17:57:50,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=844, Invalid=2938, Unknown=0, NotChecked=0, Total=3782 [2023-12-16 17:57:50,031 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 3232 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3232 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:50,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3232 Valid, 2203 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 17:57:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35254 states. Received shutdown request... [2023-12-16 17:57:50,679 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:50,679 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:51,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2023-12-16 17:57:51,689 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 [2023-12-16 17:57:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35254 to 13778. [2023-12-16 17:57:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13778 states, 11077 states have (on average 1.2647828834521984) internal successors, (14010), 11185 states have internal predecessors, (14010), 1897 states have call successors, (1897), 804 states have call predecessors, (1897), 803 states have return successors, (1896), 1788 states have call predecessors, (1896), 1896 states have call successors, (1896) [2023-12-16 17:57:52,398 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:57:52,398 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:57:52,401 INFO L445 BasicCegarLoop]: Path program histogram: [2, 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] [2023-12-16 17:57:52,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:57:52,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:57:52 BoogieIcfgContainer [2023-12-16 17:57:52,404 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:57:52,404 INFO L158 Benchmark]: Toolchain (without parser) took 71831.89ms. Allocated memory was 328.2MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 281.8MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:57:52,404 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:57:52,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.97ms. Allocated memory is still 328.2MB. Free memory was 281.8MB in the beginning and 264.5MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 17:57:52,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.84ms. Allocated memory is still 328.2MB. Free memory was 264.5MB in the beginning and 261.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:57:52,405 INFO L158 Benchmark]: Boogie Preprocessor took 46.19ms. Allocated memory is still 328.2MB. Free memory was 261.9MB in the beginning and 258.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:57:52,405 INFO L158 Benchmark]: RCFGBuilder took 668.35ms. Allocated memory is still 328.2MB. Free memory was 258.2MB in the beginning and 220.5MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-16 17:57:52,405 INFO L158 Benchmark]: TraceAbstraction took 70832.96ms. Allocated memory was 328.2MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 220.0MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:57:52,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 189.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.97ms. Allocated memory is still 328.2MB. Free memory was 281.8MB in the beginning and 264.5MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.84ms. Allocated memory is still 328.2MB. Free memory was 264.5MB in the beginning and 261.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.19ms. Allocated memory is still 328.2MB. Free memory was 261.9MB in the beginning and 258.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 668.35ms. Allocated memory is still 328.2MB. Free memory was 258.2MB in the beginning and 220.5MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * TraceAbstraction took 70832.96ms. Allocated memory was 328.2MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 220.0MB in the beginning and 1.8GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. 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 - TimeoutResultAtElement [Line: 535]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 535). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.8s, OverallIterations: 46, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22632 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22453 mSDsluCounter, 72210 SdHoareTripleChecker+Invalid, 11.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56541 mSDsCounter, 5415 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22206 IncrementalHoareTripleChecker+Invalid, 27621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5415 mSolverCounterUnsat, 15669 mSDtfsCounter, 22206 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15016 GetRequests, 14367 SyntacticMatches, 18 SemanticMatches, 631 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6457 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8281occurred in iteration=45, InterpolantAutomatonStates: 574, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.5s AutomataMinimizationTime, 46 MinimizatonAttempts, 31722 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 10150 NumberOfCodeBlocks, 10109 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 14127 ConstructedInterpolants, 0 QuantifiedInterpolants, 42612 SizeOfPredicates, 83 NumberOfNonLiveVariables, 18663 ConjunctsInSsa, 278 ConjunctsInUnsatCore, 61 InterpolantComputations, 32 PerfectInterpolantSequences, 33210/36018 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown