/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_ActiveStandby.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:56:28,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:56:28,518 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 17:56:28,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:56:28,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:56:28,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:56:28,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:56:28,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:56:28,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:56:28,554 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:56:28,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:56:28,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:56:28,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:56:28,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:56:28,556 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:56:28,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:56:28,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:56:28,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:56:28,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:56:28,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:56:28,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:56:28,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:56:28,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:28,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:56:28,560 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:56:28,561 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:56:28,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:56:28,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:56:28,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:56:28,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:56:28,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:56:28,748 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:56:28,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:29,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:56:29,859 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:56:29,860 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:29,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f4b714e/af48c6c5167640bfa205237e9bda865b/FLAGfecec73b2 [2023-12-16 17:56:29,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4f4b714e/af48c6c5167640bfa205237e9bda865b [2023-12-16 17:56:29,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:56:29,878 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:56:29,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:29,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:56:29,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:56:29,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:29" (1/1) ... [2023-12-16 17:56:29,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e719ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:29, skipping insertion in model container [2023-12-16 17:56:29,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:56:29" (1/1) ... [2023-12-16 17:56:29,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:56:30,070 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_ActiveStandby.5.ufo.BOUNDED-10.pals.c[14595,14608] [2023-12-16 17:56:30,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:30,081 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:56:30,120 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_ActiveStandby.5.ufo.BOUNDED-10.pals.c[14595,14608] [2023-12-16 17:56:30,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:56:30,132 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:56:30,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30 WrapperNode [2023-12-16 17:56:30,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:56:30,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:30,133 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:56:30,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:56:30,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,177 INFO L138 Inliner]: procedures = 32, calls = 47, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 481 [2023-12-16 17:56:30,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:56:30,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:56:30,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:56:30,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:56:30,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,218 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 17:56:30,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:56:30,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:56:30,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:56:30,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:56:30,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (1/1) ... [2023-12-16 17:56:30,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:56:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:56:30,281 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 17:56:30,303 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 17:56:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-12-16 17:56:30,307 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-12-16 17:56:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:56:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:56:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-12-16 17:56:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-12-16 17:56:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-16 17:56:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-16 17:56:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 17:56:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 17:56:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-12-16 17:56:30,309 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-12-16 17:56:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:56:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:56:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-12-16 17:56:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-12-16 17:56:30,402 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:56:30,403 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:56:30,735 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:56:30,785 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:56:30,785 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:56:30,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:30 BoogieIcfgContainer [2023-12-16 17:56:30,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:56:30,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:56:30,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:56:30,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:56:30,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:56:29" (1/3) ... [2023-12-16 17:56:30,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5b998d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:30, skipping insertion in model container [2023-12-16 17:56:30,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:56:30" (2/3) ... [2023-12-16 17:56:30,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5b998d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:56:30, skipping insertion in model container [2023-12-16 17:56:30,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:56:30" (3/3) ... [2023-12-16 17:56:30,793 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2023-12-16 17:56:30,805 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:56:30,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:56:30,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:56:30,846 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;@198569b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:56:30,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:56:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 127 states have (on average 1.6062992125984252) internal successors, (204), 128 states have internal predecessors, (204), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:30,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:30,855 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] [2023-12-16 17:56:30,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:30,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash 416796339, now seen corresponding path program 1 times [2023-12-16 17:56:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:30,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292859074] [2023-12-16 17:56:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:30,869 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 17:56:30,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:30,871 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 17:56:30,873 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 (2)] Waiting until timeout for monitored process [2023-12-16 17:56:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:30,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:56:30,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:30,987 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 17:56:30,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:30,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:30,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292859074] [2023-12-16 17:56:30,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292859074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:30,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:30,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:56:30,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255207583] [2023-12-16 17:56:30,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:30,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:56:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:31,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:56:31,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:56:31,019 INFO L87 Difference]: Start difference. First operand has 164 states, 127 states have (on average 1.6062992125984252) internal successors, (204), 128 states have internal predecessors, (204), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 17:56:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:31,086 INFO L93 Difference]: Finished difference Result 313 states and 525 transitions. [2023-12-16 17:56:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:56:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2023-12-16 17:56:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:31,094 INFO L225 Difference]: With dead ends: 313 [2023-12-16 17:56:31,094 INFO L226 Difference]: Without dead ends: 162 [2023-12-16 17:56:31,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:56:31,099 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:31,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-16 17:56:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-16 17:56:31,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 126 states have (on average 1.5793650793650793) internal successors, (199), 126 states have internal predecessors, (199), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 257 transitions. [2023-12-16 17:56:31,141 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 257 transitions. Word has length 23 [2023-12-16 17:56:31,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:31,142 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 257 transitions. [2023-12-16 17:56:31,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 17:56:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions. [2023-12-16 17:56:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-16 17:56:31,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:31,143 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] [2023-12-16 17:56:31,148 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 17:56:31,345 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 17:56:31,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:31,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1577348367, now seen corresponding path program 1 times [2023-12-16 17:56:31,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:31,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042480351] [2023-12-16 17:56:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:31,347 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 17:56:31,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:31,348 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 17:56:31,350 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 17:56:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:31,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:31,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:31,478 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 17:56:31,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:31,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:31,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042480351] [2023-12-16 17:56:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042480351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:31,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:31,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510081404] [2023-12-16 17:56:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:31,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:31,481 INFO L87 Difference]: Start difference. First operand 162 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 17:56:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:31,578 INFO L93 Difference]: Finished difference Result 415 states and 665 transitions. [2023-12-16 17:56:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:31,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 23 [2023-12-16 17:56:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:31,580 INFO L225 Difference]: With dead ends: 415 [2023-12-16 17:56:31,580 INFO L226 Difference]: Without dead ends: 266 [2023-12-16 17:56:31,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 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 17:56:31,583 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 130 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:31,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1213 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-16 17:56:31,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 162. [2023-12-16 17:56:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 126 states have (on average 1.4841269841269842) internal successors, (187), 126 states have internal predecessors, (187), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 245 transitions. [2023-12-16 17:56:31,606 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 245 transitions. Word has length 23 [2023-12-16 17:56:31,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:31,606 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 245 transitions. [2023-12-16 17:56:31,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 17:56:31,606 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 245 transitions. [2023-12-16 17:56:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-16 17:56:31,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:31,607 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, 1, 1, 1, 1] [2023-12-16 17:56:31,613 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 17:56:31,812 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 17:56:31,812 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:31,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2120967277, now seen corresponding path program 1 times [2023-12-16 17:56:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873058867] [2023-12-16 17:56:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:31,813 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 17:56:31,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:31,815 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 17:56:31,817 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 17:56:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:31,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:31,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:31,911 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 17:56:31,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:31,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873058867] [2023-12-16 17:56:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873058867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:31,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:31,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406929662] [2023-12-16 17:56:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:31,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:31,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:31,918 INFO L87 Difference]: Start difference. First operand 162 states and 245 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 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 17:56:32,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:32,000 INFO L93 Difference]: Finished difference Result 314 states and 484 transitions. [2023-12-16 17:56:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 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 34 [2023-12-16 17:56:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:32,005 INFO L225 Difference]: With dead ends: 314 [2023-12-16 17:56:32,006 INFO L226 Difference]: Without dead ends: 168 [2023-12-16 17:56:32,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 17:56:32,009 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 6 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:32,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 692 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-16 17:56:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-12-16 17:56:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 129 states have (on average 1.4728682170542635) internal successors, (190), 129 states have internal predecessors, (190), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 17:56:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 248 transitions. [2023-12-16 17:56:32,030 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 248 transitions. Word has length 34 [2023-12-16 17:56:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:32,030 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 248 transitions. [2023-12-16 17:56:32,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 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 17:56:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 248 transitions. [2023-12-16 17:56:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-16 17:56:32,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:32,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:32,039 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 17:56:32,234 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 17:56:32,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:32,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1787555156, now seen corresponding path program 1 times [2023-12-16 17:56:32,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:32,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488508177] [2023-12-16 17:56:32,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:32,236 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 17:56:32,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:32,238 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 17:56:32,248 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 17:56:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:32,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:32,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:32,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:32,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:32,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:32,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488508177] [2023-12-16 17:56:32,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488508177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:32,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:32,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:32,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128895455] [2023-12-16 17:56:32,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:32,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:32,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:32,424 INFO L87 Difference]: Start difference. First operand 166 states and 248 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:32,540 INFO L93 Difference]: Finished difference Result 347 states and 528 transitions. [2023-12-16 17:56:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2023-12-16 17:56:32,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:32,542 INFO L225 Difference]: With dead ends: 347 [2023-12-16 17:56:32,542 INFO L226 Difference]: Without dead ends: 197 [2023-12-16 17:56:32,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:32,543 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 323 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:32,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 619 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-16 17:56:32,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2023-12-16 17:56:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 157 states have (on average 1.484076433121019) internal successors, (233), 157 states have internal predecessors, (233), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 17:56:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 293 transitions. [2023-12-16 17:56:32,555 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 293 transitions. Word has length 48 [2023-12-16 17:56:32,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:32,555 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 293 transitions. [2023-12-16 17:56:32,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 293 transitions. [2023-12-16 17:56:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 17:56:32,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:32,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:32,561 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:32,758 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 17:56:32,759 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:32,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:32,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1247987491, now seen corresponding path program 1 times [2023-12-16 17:56:32,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:32,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177148401] [2023-12-16 17:56:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:32,760 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 17:56:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:32,761 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 17:56:32,763 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 17:56:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:32,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:32,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:32,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:32,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177148401] [2023-12-16 17:56:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177148401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:32,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:32,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:32,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506880804] [2023-12-16 17:56:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:32,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:32,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:32,899 INFO L87 Difference]: Start difference. First operand 196 states and 293 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:33,018 INFO L93 Difference]: Finished difference Result 348 states and 527 transitions. [2023-12-16 17:56:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:33,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 49 [2023-12-16 17:56:33,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:33,020 INFO L225 Difference]: With dead ends: 348 [2023-12-16 17:56:33,020 INFO L226 Difference]: Without dead ends: 198 [2023-12-16 17:56:33,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:33,024 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 320 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:33,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 621 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-16 17:56:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2023-12-16 17:56:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 158 states have (on average 1.4746835443037976) internal successors, (233), 158 states have internal predecessors, (233), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-16 17:56:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 293 transitions. [2023-12-16 17:56:33,037 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 293 transitions. Word has length 49 [2023-12-16 17:56:33,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:33,038 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 293 transitions. [2023-12-16 17:56:33,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 293 transitions. [2023-12-16 17:56:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 17:56:33,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:33,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:33,044 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 17:56:33,241 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 17:56:33,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:33,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:33,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1607659590, now seen corresponding path program 1 times [2023-12-16 17:56:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:33,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598449674] [2023-12-16 17:56:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:33,243 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 17:56:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:33,244 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 17:56:33,246 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 17:56:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:33,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:33,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:33,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:33,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:33,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598449674] [2023-12-16 17:56:33,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598449674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:33,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:33,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:33,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624106459] [2023-12-16 17:56:33,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:33,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:33,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:33,347 INFO L87 Difference]: Start difference. First operand 197 states and 293 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:33,381 INFO L93 Difference]: Finished difference Result 512 states and 771 transitions. [2023-12-16 17:56:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:33,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2023-12-16 17:56:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:33,384 INFO L225 Difference]: With dead ends: 512 [2023-12-16 17:56:33,384 INFO L226 Difference]: Without dead ends: 362 [2023-12-16 17:56:33,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 17:56:33,387 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 198 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:33,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 476 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:33,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-16 17:56:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2023-12-16 17:56:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 282 states have (on average 1.4822695035460993) internal successors, (418), 283 states have internal predecessors, (418), 59 states have call successors, (59), 16 states have call predecessors, (59), 16 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 17:56:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 536 transitions. [2023-12-16 17:56:33,425 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 536 transitions. Word has length 52 [2023-12-16 17:56:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:33,426 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 536 transitions. [2023-12-16 17:56:33,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,426 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 536 transitions. [2023-12-16 17:56:33,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:33,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:33,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:33,434 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 17:56:33,632 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 17:56:33,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:33,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:33,633 INFO L85 PathProgramCache]: Analyzing trace with hash 596955304, now seen corresponding path program 1 times [2023-12-16 17:56:33,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:33,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353133186] [2023-12-16 17:56:33,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:33,634 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 17:56:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:33,635 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 17:56:33,636 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 17:56:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:33,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:56:33,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:33,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:33,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:33,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353133186] [2023-12-16 17:56:33,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353133186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:33,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:33,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:56:33,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620188182] [2023-12-16 17:56:33,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:33,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:56:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:56:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:56:33,729 INFO L87 Difference]: Start difference. First operand 358 states and 536 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:33,773 INFO L93 Difference]: Finished difference Result 938 states and 1410 transitions. [2023-12-16 17:56:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:56:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2023-12-16 17:56:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:33,778 INFO L225 Difference]: With dead ends: 938 [2023-12-16 17:56:33,778 INFO L226 Difference]: Without dead ends: 650 [2023-12-16 17:56:33,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 17:56:33,780 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 194 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 491 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 17:56:33,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 491 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:33,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-16 17:56:33,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 637. [2023-12-16 17:56:33,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 487 states have (on average 1.4661190965092403) internal successors, (714), 490 states have internal predecessors, (714), 117 states have call successors, (117), 32 states have call predecessors, (117), 32 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-12-16 17:56:33,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 948 transitions. [2023-12-16 17:56:33,820 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 948 transitions. Word has length 53 [2023-12-16 17:56:33,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:33,821 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 948 transitions. [2023-12-16 17:56:33,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 17:56:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 948 transitions. [2023-12-16 17:56:33,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 17:56:33,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:33,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:33,824 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 17:56:34,024 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 17:56:34,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash -682908374, now seen corresponding path program 1 times [2023-12-16 17:56:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052844488] [2023-12-16 17:56:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,026 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 17:56:34,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,027 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 17:56:34,027 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 17:56:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-16 17:56:34,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052844488] [2023-12-16 17:56:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052844488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:56:34,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207194730] [2023-12-16 17:56:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:34,125 INFO L87 Difference]: Start difference. First operand 637 states and 948 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:34,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:34,180 INFO L93 Difference]: Finished difference Result 1073 states and 1612 transitions. [2023-12-16 17:56:34,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:34,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2023-12-16 17:56:34,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:34,183 INFO L225 Difference]: With dead ends: 1073 [2023-12-16 17:56:34,183 INFO L226 Difference]: Without dead ends: 497 [2023-12-16 17:56:34,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:34,185 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 2 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:34,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 936 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:34,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-16 17:56:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2023-12-16 17:56:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 384 states have (on average 1.4635416666666667) internal successors, (562), 386 states have internal predecessors, (562), 88 states have call successors, (88), 24 states have call predecessors, (88), 24 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 738 transitions. [2023-12-16 17:56:34,209 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 738 transitions. Word has length 53 [2023-12-16 17:56:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,209 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 738 transitions. [2023-12-16 17:56:34,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 17:56:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 738 transitions. [2023-12-16 17:56:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 17:56:34,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:56:34,216 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 (9)] Ended with exit code 0 [2023-12-16 17:56:34,424 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 17:56:34,424 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1187529699, now seen corresponding path program 1 times [2023-12-16 17:56:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348759853] [2023-12-16 17:56:34,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,425 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 17:56:34,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,465 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 17:56:34,466 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 17:56:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:34,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348759853] [2023-12-16 17:56:34,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348759853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:34,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181483751] [2023-12-16 17:56:34,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:34,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:34,543 INFO L87 Difference]: Start difference. First operand 497 states and 738 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:34,594 INFO L93 Difference]: Finished difference Result 933 states and 1399 transitions. [2023-12-16 17:56:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:34,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2023-12-16 17:56:34,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:34,596 INFO L225 Difference]: With dead ends: 933 [2023-12-16 17:56:34,596 INFO L226 Difference]: Without dead ends: 518 [2023-12-16 17:56:34,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 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 17:56:34,598 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 7 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:34,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 705 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:34,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-12-16 17:56:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 512. [2023-12-16 17:56:34,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 396 states have (on average 1.4494949494949494) internal successors, (574), 398 states have internal predecessors, (574), 88 states have call successors, (88), 27 states have call predecessors, (88), 27 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 750 transitions. [2023-12-16 17:56:34,617 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 750 transitions. Word has length 54 [2023-12-16 17:56:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,618 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 750 transitions. [2023-12-16 17:56:34,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:56:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 750 transitions. [2023-12-16 17:56:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 17:56:34,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,618 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, 1, 1, 1, 1, 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 17:56:34,624 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 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:34,823 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 17:56:34,823 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:34,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash -260060887, now seen corresponding path program 1 times [2023-12-16 17:56:34,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:34,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905559395] [2023-12-16 17:56:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:34,824 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 17:56:34,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:34,825 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 17:56:34,828 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 17:56:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:34,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:34,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:34,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:34,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:34,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905559395] [2023-12-16 17:56:34,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905559395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:34,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:34,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:34,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939840907] [2023-12-16 17:56:34,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:34,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:34,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:34,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:34,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:34,902 INFO L87 Difference]: Start difference. First operand 512 states and 750 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:34,951 INFO L93 Difference]: Finished difference Result 963 states and 1438 transitions. [2023-12-16 17:56:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:34,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 62 [2023-12-16 17:56:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:34,954 INFO L225 Difference]: With dead ends: 963 [2023-12-16 17:56:34,954 INFO L226 Difference]: Without dead ends: 533 [2023-12-16 17:56:34,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 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 17:56:34,956 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 7 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:34,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 697 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-16 17:56:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 527. [2023-12-16 17:56:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 408 states have (on average 1.4362745098039216) internal successors, (586), 410 states have internal predecessors, (586), 88 states have call successors, (88), 30 states have call predecessors, (88), 30 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 762 transitions. [2023-12-16 17:56:34,979 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 762 transitions. Word has length 62 [2023-12-16 17:56:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:34,980 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 762 transitions. [2023-12-16 17:56:34,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-16 17:56:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 762 transitions. [2023-12-16 17:56:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:34,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:34,981 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:34,983 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 17:56:35,183 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 17:56:35,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:35,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash -760942829, now seen corresponding path program 1 times [2023-12-16 17:56:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971464488] [2023-12-16 17:56:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:35,184 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 17:56:35,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:35,185 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 17:56:35,187 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 17:56:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:35,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:35,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:35,268 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:35,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:35,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971464488] [2023-12-16 17:56:35,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971464488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:35,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:35,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:35,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546013857] [2023-12-16 17:56:35,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:35,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:35,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:35,270 INFO L87 Difference]: Start difference. First operand 527 states and 762 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, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:35,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:35,315 INFO L93 Difference]: Finished difference Result 990 states and 1444 transitions. [2023-12-16 17:56:35,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:35,315 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, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2023-12-16 17:56:35,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:35,318 INFO L225 Difference]: With dead ends: 990 [2023-12-16 17:56:35,318 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:56:35,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 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 17:56:35,320 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 6 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:35,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 697 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:56:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2023-12-16 17:56:35,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 417 states have (on average 1.4268585131894485) internal successors, (595), 419 states have internal predecessors, (595), 88 states have call successors, (88), 33 states have call predecessors, (88), 33 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 17:56:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 771 transitions. [2023-12-16 17:56:35,357 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 771 transitions. Word has length 70 [2023-12-16 17:56:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:35,357 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 771 transitions. [2023-12-16 17:56:35,357 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, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-16 17:56:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 771 transitions. [2023-12-16 17:56:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 17:56:35,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:35,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:56:35,363 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:35,560 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 17:56:35,561 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:35,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:35,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1635516474, now seen corresponding path program 1 times [2023-12-16 17:56:35,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:35,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967129324] [2023-12-16 17:56:35,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:35,562 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 17:56:35,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:35,563 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 17:56:35,566 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 17:56:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:35,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:35,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:56:35,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:35,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 17:56:35,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:35,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967129324] [2023-12-16 17:56:35,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967129324] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:35,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:35,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:35,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013712414] [2023-12-16 17:56:35,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:35,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:35,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:35,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:35,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:35,804 INFO L87 Difference]: Start difference. First operand 539 states and 771 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,025 INFO L93 Difference]: Finished difference Result 1560 states and 2265 transitions. [2023-12-16 17:56:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:36,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 70 [2023-12-16 17:56:36,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,029 INFO L225 Difference]: With dead ends: 1560 [2023-12-16 17:56:36,029 INFO L226 Difference]: Without dead ends: 1103 [2023-12-16 17:56:36,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:36,031 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 337 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1342 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:36,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-12-16 17:56:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 680. [2023-12-16 17:56:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 520 states have (on average 1.4173076923076924) internal successors, (737), 523 states have internal predecessors, (737), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 967 transitions. [2023-12-16 17:56:36,092 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 967 transitions. Word has length 70 [2023-12-16 17:56:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:36,092 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 967 transitions. [2023-12-16 17:56:36,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:56:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 967 transitions. [2023-12-16 17:56:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 17:56:36,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:36,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:36,101 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:36,299 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 17:56:36,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:36,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:36,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1017692974, now seen corresponding path program 1 times [2023-12-16 17:56:36,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:36,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002562702] [2023-12-16 17:56:36,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:36,300 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 17:56:36,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:36,301 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 17:56:36,324 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 17:56:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:36,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:36,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:36,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:36,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:36,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002562702] [2023-12-16 17:56:36,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002562702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:36,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:36,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:36,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054874941] [2023-12-16 17:56:36,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:36,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:36,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:36,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:36,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:36,392 INFO L87 Difference]: Start difference. First operand 680 states and 967 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:36,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,455 INFO L93 Difference]: Finished difference Result 1275 states and 1850 transitions. [2023-12-16 17:56:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:36,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2023-12-16 17:56:36,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,458 INFO L225 Difference]: With dead ends: 1275 [2023-12-16 17:56:36,458 INFO L226 Difference]: Without dead ends: 708 [2023-12-16 17:56:36,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 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 17:56:36,460 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 7 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 697 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-12-16 17:56:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 700. [2023-12-16 17:56:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 536 states have (on average 1.4048507462686568) internal successors, (753), 539 states have internal predecessors, (753), 115 states have call successors, (115), 48 states have call predecessors, (115), 48 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 983 transitions. [2023-12-16 17:56:36,492 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 983 transitions. Word has length 77 [2023-12-16 17:56:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:36,493 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 983 transitions. [2023-12-16 17:56:36,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-12-16 17:56:36,493 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 983 transitions. [2023-12-16 17:56:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 17:56:36,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:36,493 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:36,498 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 (14)] Ended with exit code 0 [2023-12-16 17:56:36,696 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 17:56:36,696 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:36,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1611172548, now seen corresponding path program 1 times [2023-12-16 17:56:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412064587] [2023-12-16 17:56:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:36,697 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 17:56:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:36,698 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 17:56:36,699 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 17:56:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:36,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:36,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:36,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:36,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:36,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:36,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412064587] [2023-12-16 17:56:36,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412064587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:36,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:36,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:36,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288658514] [2023-12-16 17:56:36,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:36,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:36,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:36,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:36,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:36,793 INFO L87 Difference]: Start difference. First operand 700 states and 983 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, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:36,844 INFO L93 Difference]: Finished difference Result 1308 states and 1853 transitions. [2023-12-16 17:56:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:36,844 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, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 85 [2023-12-16 17:56:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:36,847 INFO L225 Difference]: With dead ends: 1308 [2023-12-16 17:56:36,847 INFO L226 Difference]: Without dead ends: 724 [2023-12-16 17:56:36,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 17:56:36,849 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 6 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:36,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 697 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-16 17:56:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 716. [2023-12-16 17:56:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 548 states have (on average 1.395985401459854) internal successors, (765), 551 states have internal predecessors, (765), 115 states have call successors, (115), 52 states have call predecessors, (115), 52 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:36,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 995 transitions. [2023-12-16 17:56:36,888 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 995 transitions. Word has length 85 [2023-12-16 17:56:36,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:36,888 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 995 transitions. [2023-12-16 17:56:36,888 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, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-12-16 17:56:36,888 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 995 transitions. [2023-12-16 17:56:36,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 17:56:36,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:36,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-16 17:56:36,892 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 17:56:37,092 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 17:56:37,092 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:37,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:37,092 INFO L85 PathProgramCache]: Analyzing trace with hash -113305042, now seen corresponding path program 1 times [2023-12-16 17:56:37,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:37,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988336677] [2023-12-16 17:56:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:37,093 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 17:56:37,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:37,094 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 17:56:37,121 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 17:56:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:37,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:37,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:37,237 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-16 17:56:37,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:37,298 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:56:37,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:37,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988336677] [2023-12-16 17:56:37,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988336677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:37,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:37,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:56:37,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124683319] [2023-12-16 17:56:37,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:37,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:56:37,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:37,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:56:37,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:37,299 INFO L87 Difference]: Start difference. First operand 716 states and 995 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:37,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:37,493 INFO L93 Difference]: Finished difference Result 1467 states and 2084 transitions. [2023-12-16 17:56:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:37,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 86 [2023-12-16 17:56:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:37,497 INFO L225 Difference]: With dead ends: 1467 [2023-12-16 17:56:37,497 INFO L226 Difference]: Without dead ends: 875 [2023-12-16 17:56:37,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:37,499 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 304 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:37,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1776 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-12-16 17:56:37,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 716. [2023-12-16 17:56:37,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 548 states have (on average 1.3941605839416058) internal successors, (764), 551 states have internal predecessors, (764), 115 states have call successors, (115), 52 states have call predecessors, (115), 52 states have return successors, (115), 112 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 17:56:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 994 transitions. [2023-12-16 17:56:37,535 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 994 transitions. Word has length 86 [2023-12-16 17:56:37,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:37,536 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 994 transitions. [2023-12-16 17:56:37,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:56:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 994 transitions. [2023-12-16 17:56:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:56:37,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:37,537 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:37,542 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:37,739 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 17:56:37,740 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:37,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2130270663, now seen corresponding path program 1 times [2023-12-16 17:56:37,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:37,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459544789] [2023-12-16 17:56:37,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:37,740 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 17:56:37,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:37,741 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 17:56:37,742 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 17:56:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:37,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:37,821 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:37,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:37,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:37,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459544789] [2023-12-16 17:56:37,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459544789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:37,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:37,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:37,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423465722] [2023-12-16 17:56:37,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:37,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:37,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:37,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:37,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:37,917 INFO L87 Difference]: Start difference. First operand 716 states and 994 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:38,273 INFO L93 Difference]: Finished difference Result 1703 states and 2432 transitions. [2023-12-16 17:56:38,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:38,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2023-12-16 17:56:38,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:38,277 INFO L225 Difference]: With dead ends: 1703 [2023-12-16 17:56:38,277 INFO L226 Difference]: Without dead ends: 1105 [2023-12-16 17:56:38,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:38,279 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 537 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:38,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1484 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:38,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-16 17:56:38,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 843. [2023-12-16 17:56:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 636 states have (on average 1.3757861635220126) internal successors, (875), 640 states have internal predecessors, (875), 142 states have call successors, (142), 64 states have call predecessors, (142), 64 states have return successors, (142), 138 states have call predecessors, (142), 142 states have call successors, (142) [2023-12-16 17:56:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1159 transitions. [2023-12-16 17:56:38,340 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1159 transitions. Word has length 90 [2023-12-16 17:56:38,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:38,340 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1159 transitions. [2023-12-16 17:56:38,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:38,340 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1159 transitions. [2023-12-16 17:56:38,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:56:38,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:38,341 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:38,344 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:38,543 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 17:56:38,544 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:38,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash -641642766, now seen corresponding path program 1 times [2023-12-16 17:56:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:38,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304138563] [2023-12-16 17:56:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:38,544 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 17:56:38,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:38,546 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 17:56:38,571 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 17:56:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:38,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:38,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 17:56:38,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:38,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:38,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304138563] [2023-12-16 17:56:38,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304138563] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:38,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:38,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:38,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548267905] [2023-12-16 17:56:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:38,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:38,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:38,682 INFO L87 Difference]: Start difference. First operand 843 states and 1159 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:39,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:39,026 INFO L93 Difference]: Finished difference Result 1809 states and 2558 transitions. [2023-12-16 17:56:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:39,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2023-12-16 17:56:39,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:39,031 INFO L225 Difference]: With dead ends: 1809 [2023-12-16 17:56:39,031 INFO L226 Difference]: Without dead ends: 1211 [2023-12-16 17:56:39,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:39,033 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 399 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:39,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1867 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:39,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2023-12-16 17:56:39,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 958. [2023-12-16 17:56:39,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 716 states have (on average 1.3603351955307263) internal successors, (974), 721 states have internal predecessors, (974), 165 states have call successors, (165), 76 states have call predecessors, (165), 76 states have return successors, (165), 160 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-16 17:56:39,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1304 transitions. [2023-12-16 17:56:39,107 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1304 transitions. Word has length 91 [2023-12-16 17:56:39,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:39,107 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1304 transitions. [2023-12-16 17:56:39,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1304 transitions. [2023-12-16 17:56:39,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:56:39,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:39,109 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:39,111 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 17:56:39,311 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 17:56:39,312 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:39,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:39,312 INFO L85 PathProgramCache]: Analyzing trace with hash 808342129, now seen corresponding path program 1 times [2023-12-16 17:56:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:39,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136741838] [2023-12-16 17:56:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:39,312 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 17:56:39,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:39,313 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 17:56:39,328 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 17:56:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:39,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:39,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:56:39,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:39,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:39,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136741838] [2023-12-16 17:56:39,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136741838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:39,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:39,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:39,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956568733] [2023-12-16 17:56:39,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:39,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:39,456 INFO L87 Difference]: Start difference. First operand 958 states and 1304 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:39,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:39,771 INFO L93 Difference]: Finished difference Result 1878 states and 2592 transitions. [2023-12-16 17:56:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:56:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 93 [2023-12-16 17:56:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:39,775 INFO L225 Difference]: With dead ends: 1878 [2023-12-16 17:56:39,775 INFO L226 Difference]: Without dead ends: 1068 [2023-12-16 17:56:39,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:39,777 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 539 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:39,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1236 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-12-16 17:56:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 958. [2023-12-16 17:56:39,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 716 states have (on average 1.3519553072625698) internal successors, (968), 721 states have internal predecessors, (968), 165 states have call successors, (165), 76 states have call predecessors, (165), 76 states have return successors, (165), 160 states have call predecessors, (165), 165 states have call successors, (165) [2023-12-16 17:56:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1298 transitions. [2023-12-16 17:56:39,838 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1298 transitions. Word has length 93 [2023-12-16 17:56:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:39,838 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1298 transitions. [2023-12-16 17:56:39,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 6 states have internal predecessors, (70), 4 states have call successors, (10), 4 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:56:39,838 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1298 transitions. [2023-12-16 17:56:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:56:39,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:39,839 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:39,843 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 17:56:40,041 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 17:56:40,042 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:40,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash -767862267, now seen corresponding path program 1 times [2023-12-16 17:56:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:40,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092924449] [2023-12-16 17:56:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:40,044 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 17:56:40,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:40,045 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 17:56:40,064 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 17:56:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:40,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:40,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:40,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:40,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:40,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092924449] [2023-12-16 17:56:40,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092924449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:40,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:40,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573898544] [2023-12-16 17:56:40,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:40,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:40,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:40,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:40,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:40,212 INFO L87 Difference]: Start difference. First operand 958 states and 1298 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:40,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:40,350 INFO L93 Difference]: Finished difference Result 2315 states and 3152 transitions. [2023-12-16 17:56:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:40,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2023-12-16 17:56:40,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:40,364 INFO L225 Difference]: With dead ends: 2315 [2023-12-16 17:56:40,364 INFO L226 Difference]: Without dead ends: 1730 [2023-12-16 17:56:40,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 17:56:40,366 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 158 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 747 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-12-16 17:56:40,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1644. [2023-12-16 17:56:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1219 states have (on average 1.3412633305988515) internal successors, (1635), 1229 states have internal predecessors, (1635), 290 states have call successors, (290), 134 states have call predecessors, (290), 134 states have return successors, (290), 280 states have call predecessors, (290), 290 states have call successors, (290) [2023-12-16 17:56:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2215 transitions. [2023-12-16 17:56:40,501 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2215 transitions. Word has length 92 [2023-12-16 17:56:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:40,501 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2215 transitions. [2023-12-16 17:56:40,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2215 transitions. [2023-12-16 17:56:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:40,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:40,504 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:40,508 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 17:56:40,706 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 17:56:40,706 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:40,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1310276840, now seen corresponding path program 1 times [2023-12-16 17:56:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:40,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178994835] [2023-12-16 17:56:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:40,707 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 17:56:40,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:40,708 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 17:56:40,711 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 17:56:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:40,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:40,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:56:40,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-16 17:56:40,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178994835] [2023-12-16 17:56:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178994835] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:40,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:40,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519206135] [2023-12-16 17:56:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:40,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:40,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:40,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:40,972 INFO L87 Difference]: Start difference. First operand 1644 states and 2215 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 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 17:56:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,241 INFO L93 Difference]: Finished difference Result 3079 states and 4176 transitions. [2023-12-16 17:56:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 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 94 [2023-12-16 17:56:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,247 INFO L225 Difference]: With dead ends: 3079 [2023-12-16 17:56:41,247 INFO L226 Difference]: Without dead ends: 1866 [2023-12-16 17:56:41,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:41,250 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 224 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1880 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2023-12-16 17:56:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1644. [2023-12-16 17:56:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1219 states have (on average 1.3371616078753077) internal successors, (1630), 1229 states have internal predecessors, (1630), 290 states have call successors, (290), 134 states have call predecessors, (290), 134 states have return successors, (290), 280 states have call predecessors, (290), 290 states have call successors, (290) [2023-12-16 17:56:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2210 transitions. [2023-12-16 17:56:41,362 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2210 transitions. Word has length 94 [2023-12-16 17:56:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:41,362 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2210 transitions. [2023-12-16 17:56:41,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 6 states have internal predecessors, (65), 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 17:56:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2210 transitions. [2023-12-16 17:56:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:41,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:41,363 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:41,370 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 (21)] Ended with exit code 0 [2023-12-16 17:56:41,565 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 17:56:41,566 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:41,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1554073978, now seen corresponding path program 1 times [2023-12-16 17:56:41,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:41,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048349921] [2023-12-16 17:56:41,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:41,567 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 17:56:41,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:41,568 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 17:56:41,569 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 17:56:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:41,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:41,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:41,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:41,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:41,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048349921] [2023-12-16 17:56:41,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048349921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:41,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:41,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:41,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115819923] [2023-12-16 17:56:41,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:41,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:41,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:41,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:41,732 INFO L87 Difference]: Start difference. First operand 1644 states and 2210 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:41,951 INFO L93 Difference]: Finished difference Result 3805 states and 5144 transitions. [2023-12-16 17:56:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:41,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:41,960 INFO L225 Difference]: With dead ends: 3805 [2023-12-16 17:56:41,960 INFO L226 Difference]: Without dead ends: 2653 [2023-12-16 17:56:41,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 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 17:56:41,963 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 167 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:41,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1071 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2023-12-16 17:56:42,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2531. [2023-12-16 17:56:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 1867 states have (on average 1.3256561328334227) internal successors, (2475), 1883 states have internal predecessors, (2475), 454 states have call successors, (454), 209 states have call predecessors, (454), 209 states have return successors, (454), 438 states have call predecessors, (454), 454 states have call successors, (454) [2023-12-16 17:56:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3383 transitions. [2023-12-16 17:56:42,146 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3383 transitions. Word has length 94 [2023-12-16 17:56:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,146 INFO L495 AbstractCegarLoop]: Abstraction has 2531 states and 3383 transitions. [2023-12-16 17:56:42,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:42,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3383 transitions. [2023-12-16 17:56:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:56:42,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:42,152 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 17:56:42,351 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 17:56:42,351 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:42,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1814016471, now seen corresponding path program 1 times [2023-12-16 17:56:42,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:42,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418986616] [2023-12-16 17:56:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:42,352 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 17:56:42,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:42,353 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 17:56:42,354 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 17:56:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:42,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:42,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:42,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:42,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:42,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418986616] [2023-12-16 17:56:42,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418986616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:42,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:42,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266697280] [2023-12-16 17:56:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:42,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:42,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:42,502 INFO L87 Difference]: Start difference. First operand 2531 states and 3383 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:42,713 INFO L93 Difference]: Finished difference Result 4299 states and 5758 transitions. [2023-12-16 17:56:42,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:42,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2023-12-16 17:56:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:42,720 INFO L225 Difference]: With dead ends: 4299 [2023-12-16 17:56:42,720 INFO L226 Difference]: Without dead ends: 2087 [2023-12-16 17:56:42,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 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 17:56:42,724 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 322 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:42,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 628 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-12-16 17:56:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2087. [2023-12-16 17:56:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 1540 states have (on average 1.3253246753246752) internal successors, (2041), 1553 states have internal predecessors, (2041), 370 states have call successors, (370), 176 states have call predecessors, (370), 176 states have return successors, (370), 357 states have call predecessors, (370), 370 states have call successors, (370) [2023-12-16 17:56:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2781 transitions. [2023-12-16 17:56:42,868 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2781 transitions. Word has length 94 [2023-12-16 17:56:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:42,868 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 2781 transitions. [2023-12-16 17:56:42,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2781 transitions. [2023-12-16 17:56:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:42,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:42,880 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-16 17:56:42,882 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 17:56:43,082 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 17:56:43,082 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:43,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:43,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1868187475, now seen corresponding path program 1 times [2023-12-16 17:56:43,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:43,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013333097] [2023-12-16 17:56:43,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:43,083 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 17:56:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:43,084 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 17:56:43,085 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 (24)] Waiting until timeout for monitored process [2023-12-16 17:56:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:43,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:43,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-16 17:56:43,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:56:43,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:43,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013333097] [2023-12-16 17:56:43,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013333097] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:43,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:43,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:43,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107463641] [2023-12-16 17:56:43,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:43,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:43,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:43,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:43,315 INFO L87 Difference]: Start difference. First operand 2087 states and 2781 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:43,639 INFO L93 Difference]: Finished difference Result 4280 states and 5806 transitions. [2023-12-16 17:56:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2023-12-16 17:56:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:43,647 INFO L225 Difference]: With dead ends: 4280 [2023-12-16 17:56:43,648 INFO L226 Difference]: Without dead ends: 2449 [2023-12-16 17:56:43,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 186 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:43,651 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 208 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:43,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1613 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:43,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2023-12-16 17:56:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 1900. [2023-12-16 17:56:43,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1405 states have (on average 1.3245551601423489) internal successors, (1861), 1417 states have internal predecessors, (1861), 332 states have call successors, (332), 162 states have call predecessors, (332), 162 states have return successors, (332), 320 states have call predecessors, (332), 332 states have call successors, (332) [2023-12-16 17:56:43,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2525 transitions. [2023-12-16 17:56:43,799 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2525 transitions. Word has length 97 [2023-12-16 17:56:43,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:43,800 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2525 transitions. [2023-12-16 17:56:43,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:56:43,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2525 transitions. [2023-12-16 17:56:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:56:43,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:43,801 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 17:56:43,803 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 17:56:44,003 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 17:56:44,003 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,004 INFO L85 PathProgramCache]: Analyzing trace with hash -655751939, now seen corresponding path program 1 times [2023-12-16 17:56:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067820321] [2023-12-16 17:56:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,004 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 17:56:44,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,005 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 17:56:44,018 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 17:56:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 17:56:44,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067820321] [2023-12-16 17:56:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067820321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802857602] [2023-12-16 17:56:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:56:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:56:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:56:44,136 INFO L87 Difference]: Start difference. First operand 1900 states and 2525 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:44,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,312 INFO L93 Difference]: Finished difference Result 3485 states and 4647 transitions. [2023-12-16 17:56:44,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:56:44,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 97 [2023-12-16 17:56:44,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,318 INFO L225 Difference]: With dead ends: 3485 [2023-12-16 17:56:44,318 INFO L226 Difference]: Without dead ends: 1752 [2023-12-16 17:56:44,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 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 17:56:44,321 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 289 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 629 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:44,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-12-16 17:56:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2023-12-16 17:56:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1293 states have (on average 1.3232791956689869) internal successors, (1711), 1304 states have internal predecessors, (1711), 307 states have call successors, (307), 151 states have call predecessors, (307), 151 states have return successors, (307), 296 states have call predecessors, (307), 307 states have call successors, (307) [2023-12-16 17:56:44,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2325 transitions. [2023-12-16 17:56:44,446 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2325 transitions. Word has length 97 [2023-12-16 17:56:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:44,446 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2325 transitions. [2023-12-16 17:56:44,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:56:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2325 transitions. [2023-12-16 17:56:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 17:56:44,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:44,447 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:44,450 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:56:44,649 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 17:56:44,650 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:44,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash -775062168, now seen corresponding path program 1 times [2023-12-16 17:56:44,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:44,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941284231] [2023-12-16 17:56:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:44,651 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 17:56:44,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:44,652 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 17:56:44,653 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 17:56:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:44,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:56:44,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:44,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:44,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:44,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941284231] [2023-12-16 17:56:44,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941284231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:44,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:44,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:56:44,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237888011] [2023-12-16 17:56:44,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:44,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:56:44,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:44,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:56:44,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:56:44,743 INFO L87 Difference]: Start difference. First operand 1752 states and 2325 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:56:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:44,878 INFO L93 Difference]: Finished difference Result 3381 states and 4525 transitions. [2023-12-16 17:56:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:56:44,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 102 [2023-12-16 17:56:44,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:44,890 INFO L225 Difference]: With dead ends: 3381 [2023-12-16 17:56:44,890 INFO L226 Difference]: Without dead ends: 1848 [2023-12-16 17:56:44,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 17:56:44,892 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 8 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:44,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 702 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:44,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2023-12-16 17:56:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1824. [2023-12-16 17:56:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1353 states have (on average 1.3089430894308942) internal successors, (1771), 1364 states have internal predecessors, (1771), 307 states have call successors, (307), 163 states have call predecessors, (307), 163 states have return successors, (307), 296 states have call predecessors, (307), 307 states have call successors, (307) [2023-12-16 17:56:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2385 transitions. [2023-12-16 17:56:45,008 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2385 transitions. Word has length 102 [2023-12-16 17:56:45,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,008 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 2385 transitions. [2023-12-16 17:56:45,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 17:56:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2385 transitions. [2023-12-16 17:56:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 17:56:45,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,009 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:45,011 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 (26)] Ended with exit code 0 [2023-12-16 17:56:45,211 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 17:56:45,211 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:45,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:45,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1746973305, now seen corresponding path program 1 times [2023-12-16 17:56:45,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:45,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939766472] [2023-12-16 17:56:45,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:45,212 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 17:56:45,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:45,213 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 17:56:45,221 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 17:56:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:45,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:45,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:45,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:45,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939766472] [2023-12-16 17:56:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939766472] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:45,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-16 17:56:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797065571] [2023-12-16 17:56:45,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:45,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:45,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:45,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:45,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:45,468 INFO L87 Difference]: Start difference. First operand 1824 states and 2385 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:45,780 INFO L93 Difference]: Finished difference Result 3667 states and 4868 transitions. [2023-12-16 17:56:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2023-12-16 17:56:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:45,787 INFO L225 Difference]: With dead ends: 3667 [2023-12-16 17:56:45,787 INFO L226 Difference]: Without dead ends: 2026 [2023-12-16 17:56:45,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:45,790 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 184 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:45,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1342 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2023-12-16 17:56:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1803. [2023-12-16 17:56:45,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1338 states have (on average 1.304932735426009) internal successors, (1746), 1349 states have internal predecessors, (1746), 301 states have call successors, (301), 163 states have call predecessors, (301), 163 states have return successors, (301), 290 states have call predecessors, (301), 301 states have call successors, (301) [2023-12-16 17:56:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2348 transitions. [2023-12-16 17:56:45,904 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2348 transitions. Word has length 105 [2023-12-16 17:56:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:45,904 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2348 transitions. [2023-12-16 17:56:45,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-16 17:56:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2348 transitions. [2023-12-16 17:56:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 17:56:45,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:45,905 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:45,907 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 17:56:46,107 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 17:56:46,107 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2080577283, now seen corresponding path program 1 times [2023-12-16 17:56:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661192113] [2023-12-16 17:56:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,108 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 17:56:46,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,109 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 17:56:46,137 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 17:56:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 17:56:46,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:46,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:46,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661192113] [2023-12-16 17:56:46,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661192113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:46,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:46,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:56:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136671076] [2023-12-16 17:56:46,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:46,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:56:46,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:56:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:56:46,206 INFO L87 Difference]: Start difference. First operand 1803 states and 2348 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:46,453 INFO L93 Difference]: Finished difference Result 2571 states and 3547 transitions. [2023-12-16 17:56:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:56:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 108 [2023-12-16 17:56:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:46,463 INFO L225 Difference]: With dead ends: 2571 [2023-12-16 17:56:46,463 INFO L226 Difference]: Without dead ends: 2569 [2023-12-16 17:56:46,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 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 17:56:46,464 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 180 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:46,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1550 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:56:46,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-12-16 17:56:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1798. [2023-12-16 17:56:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1331 states have (on average 1.3065364387678438) internal successors, (1739), 1343 states have internal predecessors, (1739), 302 states have call successors, (302), 164 states have call predecessors, (302), 164 states have return successors, (302), 290 states have call predecessors, (302), 302 states have call successors, (302) [2023-12-16 17:56:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2343 transitions. [2023-12-16 17:56:46,626 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2343 transitions. Word has length 108 [2023-12-16 17:56:46,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:46,627 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2343 transitions. [2023-12-16 17:56:46,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-16 17:56:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2343 transitions. [2023-12-16 17:56:46,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 17:56:46,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:46,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-12-16 17:56:46,633 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 17:56:46,831 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 17:56:46,831 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:46,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1122703765, now seen corresponding path program 1 times [2023-12-16 17:56:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946262739] [2023-12-16 17:56:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:46,832 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 17:56:46,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:46,833 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 17:56:46,861 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 17:56:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:46,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:46,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:47,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:56:47,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:47,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946262739] [2023-12-16 17:56:47,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946262739] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 17:56:47,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 17:56:47,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-16 17:56:47,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461381034] [2023-12-16 17:56:47,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:47,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:47,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:47,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:47,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:56:47,162 INFO L87 Difference]: Start difference. First operand 1798 states and 2343 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:56:47,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:47,355 INFO L93 Difference]: Finished difference Result 3379 states and 4455 transitions. [2023-12-16 17:56:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:47,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2023-12-16 17:56:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:47,361 INFO L225 Difference]: With dead ends: 3379 [2023-12-16 17:56:47,361 INFO L226 Difference]: Without dead ends: 1803 [2023-12-16 17:56:47,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:56:47,364 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 146 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:47,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1375 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:47,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2023-12-16 17:56:47,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1596. [2023-12-16 17:56:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1187 states have (on average 1.2982308340353834) internal successors, (1541), 1198 states have internal predecessors, (1541), 264 states have call successors, (264), 144 states have call predecessors, (264), 144 states have return successors, (264), 253 states have call predecessors, (264), 264 states have call successors, (264) [2023-12-16 17:56:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2069 transitions. [2023-12-16 17:56:47,475 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2069 transitions. Word has length 111 [2023-12-16 17:56:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:47,477 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 2069 transitions. [2023-12-16 17:56:47,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:56:47,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2069 transitions. [2023-12-16 17:56:47,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-16 17:56:47,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:47,479 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:47,481 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 (29)] Ended with exit code 0 [2023-12-16 17:56:47,681 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 17:56:47,681 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:47,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:47,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2015191633, now seen corresponding path program 1 times [2023-12-16 17:56:47,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:47,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367909338] [2023-12-16 17:56:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:47,682 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 17:56:47,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:47,683 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 17:56:47,683 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 17:56:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:47,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:56:47,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:48,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:48,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:48,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367909338] [2023-12-16 17:56:48,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367909338] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:48,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:48,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:56:48,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961909715] [2023-12-16 17:56:48,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:48,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:56:48,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:48,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:56:48,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:56:48,274 INFO L87 Difference]: Start difference. First operand 1596 states and 2069 transitions. Second operand has 14 states, 14 states have (on average 13.928571428571429) internal successors, (195), 14 states have internal predecessors, (195), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:49,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:49,416 INFO L93 Difference]: Finished difference Result 3422 states and 4501 transitions. [2023-12-16 17:56:49,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:56:49,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.928571428571429) internal successors, (195), 14 states have internal predecessors, (195), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 167 [2023-12-16 17:56:49,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:49,421 INFO L225 Difference]: With dead ends: 3422 [2023-12-16 17:56:49,421 INFO L226 Difference]: Without dead ends: 2056 [2023-12-16 17:56:49,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:56:49,423 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 1450 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:49,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 1750 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:56:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2023-12-16 17:56:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 1938. [2023-12-16 17:56:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1439 states have (on average 1.2974287699791522) internal successors, (1867), 1452 states have internal predecessors, (1867), 319 states have call successors, (319), 179 states have call predecessors, (319), 179 states have return successors, (319), 306 states have call predecessors, (319), 319 states have call successors, (319) [2023-12-16 17:56:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2505 transitions. [2023-12-16 17:56:49,613 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2505 transitions. Word has length 167 [2023-12-16 17:56:49,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:49,613 INFO L495 AbstractCegarLoop]: Abstraction has 1938 states and 2505 transitions. [2023-12-16 17:56:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.928571428571429) internal successors, (195), 14 states have internal predecessors, (195), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2505 transitions. [2023-12-16 17:56:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 17:56:49,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:49,616 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:49,621 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 17:56:49,819 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 17:56:49,819 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:49,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:49,819 INFO L85 PathProgramCache]: Analyzing trace with hash -427350096, now seen corresponding path program 1 times [2023-12-16 17:56:49,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:49,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705671340] [2023-12-16 17:56:49,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:49,820 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 17:56:49,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:49,821 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 17:56:49,821 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 17:56:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:49,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:56:49,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 72 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:50,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:50,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:50,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705671340] [2023-12-16 17:56:50,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705671340] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:50,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:50,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:56:50,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957523433] [2023-12-16 17:56:50,401 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:50,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:56:50,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:50,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:56:50,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:56:50,402 INFO L87 Difference]: Start difference. First operand 1938 states and 2505 transitions. Second operand has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:51,453 INFO L93 Difference]: Finished difference Result 3719 states and 4874 transitions. [2023-12-16 17:56:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 17:56:51,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 168 [2023-12-16 17:56:51,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:51,457 INFO L225 Difference]: With dead ends: 3719 [2023-12-16 17:56:51,457 INFO L226 Difference]: Without dead ends: 2022 [2023-12-16 17:56:51,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 327 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=770, Unknown=0, NotChecked=0, Total=992 [2023-12-16 17:56:51,460 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1185 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:51,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 2899 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:56:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2023-12-16 17:56:51,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1966. [2023-12-16 17:56:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1467 states have (on average 1.296523517382413) internal successors, (1902), 1480 states have internal predecessors, (1902), 319 states have call successors, (319), 179 states have call predecessors, (319), 179 states have return successors, (319), 306 states have call predecessors, (319), 319 states have call successors, (319) [2023-12-16 17:56:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2540 transitions. [2023-12-16 17:56:51,657 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2540 transitions. Word has length 168 [2023-12-16 17:56:51,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:51,657 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2540 transitions. [2023-12-16 17:56:51,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2540 transitions. [2023-12-16 17:56:51,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 17:56:51,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:51,659 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:51,666 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 17:56:51,862 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 17:56:51,862 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:51,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1753162762, now seen corresponding path program 1 times [2023-12-16 17:56:51,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:51,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241493994] [2023-12-16 17:56:51,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:51,863 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 17:56:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:51,864 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 17:56:51,865 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 17:56:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:51,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:51,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:52,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:52,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:52,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241493994] [2023-12-16 17:56:52,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241493994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:52,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-16 17:56:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927409722] [2023-12-16 17:56:52,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:56:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:56:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:56:52,242 INFO L87 Difference]: Start difference. First operand 1966 states and 2540 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:52,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:52,796 INFO L93 Difference]: Finished difference Result 3864 states and 5063 transitions. [2023-12-16 17:56:52,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:56:52,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 169 [2023-12-16 17:56:52,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:52,801 INFO L225 Difference]: With dead ends: 3864 [2023-12-16 17:56:52,801 INFO L226 Difference]: Without dead ends: 2139 [2023-12-16 17:56:52,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 330 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:56:52,804 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 712 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:52,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 1268 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:56:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-16 17:56:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2119. [2023-12-16 17:56:53,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2119 states, 1600 states have (on average 1.295625) internal successors, (2073), 1613 states have internal predecessors, (2073), 329 states have call successors, (329), 189 states have call predecessors, (329), 189 states have return successors, (329), 316 states have call predecessors, (329), 329 states have call successors, (329) [2023-12-16 17:56:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2731 transitions. [2023-12-16 17:56:53,024 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2731 transitions. Word has length 169 [2023-12-16 17:56:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:53,024 INFO L495 AbstractCegarLoop]: Abstraction has 2119 states and 2731 transitions. [2023-12-16 17:56:53,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 10 states have internal predecessors, (206), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2731 transitions. [2023-12-16 17:56:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 17:56:53,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:53,027 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:53,029 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 17:56:53,229 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 17:56:53,230 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:53,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash 200249043, now seen corresponding path program 1 times [2023-12-16 17:56:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17437736] [2023-12-16 17:56:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:53,230 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 17:56:53,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:53,231 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 17:56:53,259 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 17:56:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:53,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:56:53,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:56:53,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-16 17:56:53,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:53,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17437736] [2023-12-16 17:56:53,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17437736] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:53,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:53,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-16 17:56:53,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934189226] [2023-12-16 17:56:53,636 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:53,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 17:56:53,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:53,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 17:56:53,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-16 17:56:53,637 INFO L87 Difference]: Start difference. First operand 2119 states and 2731 transitions. Second operand has 13 states, 13 states have (on average 16.0) internal successors, (208), 13 states have internal predecessors, (208), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:54,631 INFO L93 Difference]: Finished difference Result 4484 states and 5862 transitions. [2023-12-16 17:56:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 17:56:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.0) internal successors, (208), 13 states have internal predecessors, (208), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 170 [2023-12-16 17:56:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:54,636 INFO L225 Difference]: With dead ends: 4484 [2023-12-16 17:56:54,636 INFO L226 Difference]: Without dead ends: 2606 [2023-12-16 17:56:54,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-16 17:56:54,638 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1196 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:54,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1890 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:56:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2023-12-16 17:56:54,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2584. [2023-12-16 17:56:54,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1985 states have (on average 1.2987405541561712) internal successors, (2578), 1998 states have internal predecessors, (2578), 374 states have call successors, (374), 224 states have call predecessors, (374), 224 states have return successors, (374), 361 states have call predecessors, (374), 374 states have call successors, (374) [2023-12-16 17:56:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3326 transitions. [2023-12-16 17:56:54,901 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3326 transitions. Word has length 170 [2023-12-16 17:56:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:54,902 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3326 transitions. [2023-12-16 17:56:54,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.0) internal successors, (208), 13 states have internal predecessors, (208), 7 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-12-16 17:56:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3326 transitions. [2023-12-16 17:56:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-16 17:56:54,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:54,905 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 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, 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] [2023-12-16 17:56:54,907 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 (33)] Ended with exit code 0 [2023-12-16 17:56:55,107 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 17:56:55,125 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:55,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash 184449960, now seen corresponding path program 1 times [2023-12-16 17:56:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:55,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371057169] [2023-12-16 17:56:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:55,126 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 17:56:55,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:55,127 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 17:56:55,155 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 17:56:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:55,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:55,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:56:55,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:56:55,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:55,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371057169] [2023-12-16 17:56:55,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371057169] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:55,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:55,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-16 17:56:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961997062] [2023-12-16 17:56:55,402 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:55,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:56:55,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:56:55,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:56:55,403 INFO L87 Difference]: Start difference. First operand 2584 states and 3326 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:56:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:55,862 INFO L93 Difference]: Finished difference Result 5348 states and 7021 transitions. [2023-12-16 17:56:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:56:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 174 [2023-12-16 17:56:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:55,868 INFO L225 Difference]: With dead ends: 5348 [2023-12-16 17:56:55,869 INFO L226 Difference]: Without dead ends: 2960 [2023-12-16 17:56:55,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:56:55,871 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 151 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:55,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 2041 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:55,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2023-12-16 17:56:56,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2584. [2023-12-16 17:56:56,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1985 states have (on average 1.2977329974811083) internal successors, (2576), 1998 states have internal predecessors, (2576), 374 states have call successors, (374), 224 states have call predecessors, (374), 224 states have return successors, (374), 361 states have call predecessors, (374), 374 states have call successors, (374) [2023-12-16 17:56:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3324 transitions. [2023-12-16 17:56:56,167 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3324 transitions. Word has length 174 [2023-12-16 17:56:56,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:56,167 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3324 transitions. [2023-12-16 17:56:56,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 7 states have internal predecessors, (142), 3 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-12-16 17:56:56,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3324 transitions. [2023-12-16 17:56:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-16 17:56:56,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:56,170 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:56,175 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 17:56:56,376 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 17:56:56,376 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:56,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash -653532666, now seen corresponding path program 1 times [2023-12-16 17:56:56,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:56,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388894551] [2023-12-16 17:56:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:56,377 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 17:56:56,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:56,378 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 17:56:56,406 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 17:56:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:56,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:56:56,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 17:56:56,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:56:56,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:56,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388894551] [2023-12-16 17:56:56,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388894551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:56:56,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:56:56,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:56:56,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186683545] [2023-12-16 17:56:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:56:56,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:56:56,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:56:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:56:56,557 INFO L87 Difference]: Start difference. First operand 2584 states and 3324 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:56:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:56:57,435 INFO L93 Difference]: Finished difference Result 8148 states and 10869 transitions. [2023-12-16 17:56:57,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:56:57,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2023-12-16 17:56:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:56:57,445 INFO L225 Difference]: With dead ends: 8148 [2023-12-16 17:56:57,445 INFO L226 Difference]: Without dead ends: 5816 [2023-12-16 17:56:57,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:56:57,449 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 278 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:56:57,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1993 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:56:57,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2023-12-16 17:56:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 3960. [2023-12-16 17:56:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 2975 states have (on average 1.2994957983193278) internal successors, (3866), 2998 states have internal predecessors, (3866), 632 states have call successors, (632), 352 states have call predecessors, (632), 352 states have return successors, (632), 609 states have call predecessors, (632), 632 states have call successors, (632) [2023-12-16 17:56:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5130 transitions. [2023-12-16 17:56:57,941 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5130 transitions. Word has length 173 [2023-12-16 17:56:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:56:57,942 INFO L495 AbstractCegarLoop]: Abstraction has 3960 states and 5130 transitions. [2023-12-16 17:56:57,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 17:56:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5130 transitions. [2023-12-16 17:56:57,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 17:56:57,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:56:57,946 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:56:57,954 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 17:56:58,149 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 17:56:58,149 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:56:58,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:56:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash -995586258, now seen corresponding path program 1 times [2023-12-16 17:56:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:56:58,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003549342] [2023-12-16 17:56:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:56:58,150 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 17:56:58,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:56:58,151 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 17:56:58,152 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 17:56:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:56:58,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:56:58,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:56:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 61 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:56:58,422 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:56:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-16 17:56:58,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:56:58,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003549342] [2023-12-16 17:56:58,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003549342] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:56:58,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:56:58,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:56:58,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110678136] [2023-12-16 17:56:58,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:56:58,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:56:58,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:56:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:56:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:56:58,556 INFO L87 Difference]: Start difference. First operand 3960 states and 5130 transitions. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:00,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:00,124 INFO L93 Difference]: Finished difference Result 11623 states and 15388 transitions. [2023-12-16 17:57:00,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:00,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) Word has length 179 [2023-12-16 17:57:00,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:00,139 INFO L225 Difference]: With dead ends: 11623 [2023-12-16 17:57:00,140 INFO L226 Difference]: Without dead ends: 7915 [2023-12-16 17:57:00,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:00,145 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 766 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:00,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2839 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:00,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2023-12-16 17:57:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6724. [2023-12-16 17:57:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 4967 states have (on average 1.2999798671230118) internal successors, (6457), 5010 states have internal predecessors, (6457), 1148 states have call successors, (1148), 608 states have call predecessors, (1148), 608 states have return successors, (1148), 1105 states have call predecessors, (1148), 1148 states have call successors, (1148) [2023-12-16 17:57:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 8753 transitions. [2023-12-16 17:57:01,054 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 8753 transitions. Word has length 179 [2023-12-16 17:57:01,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:01,054 INFO L495 AbstractCegarLoop]: Abstraction has 6724 states and 8753 transitions. [2023-12-16 17:57:01,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (35), 5 states have call predecessors, (35), 7 states have return successors, (33), 7 states have call predecessors, (33), 6 states have call successors, (33) [2023-12-16 17:57:01,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 8753 transitions. [2023-12-16 17:57:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 17:57:01,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:01,058 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:01,064 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 (36)] Ended with exit code 0 [2023-12-16 17:57:01,261 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 17:57:01,261 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:01,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:01,262 INFO L85 PathProgramCache]: Analyzing trace with hash -744422450, now seen corresponding path program 1 times [2023-12-16 17:57:01,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:01,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806956922] [2023-12-16 17:57:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:01,262 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 17:57:01,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:01,263 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 17:57:01,265 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 17:57:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:01,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:01,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 82 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:01,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:01,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806956922] [2023-12-16 17:57:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806956922] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:01,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:01,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:01,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889986621] [2023-12-16 17:57:01,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:01,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:01,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:01,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:01,877 INFO L87 Difference]: Start difference. First operand 6724 states and 8753 transitions. Second operand has 14 states, 14 states have (on average 14.5) internal successors, (203), 14 states have internal predecessors, (203), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:03,935 INFO L93 Difference]: Finished difference Result 14646 states and 19139 transitions. [2023-12-16 17:57:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 17:57:03,935 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.5) internal successors, (203), 14 states have internal predecessors, (203), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 181 [2023-12-16 17:57:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:03,951 INFO L225 Difference]: With dead ends: 14646 [2023-12-16 17:57:03,951 INFO L226 Difference]: Without dead ends: 8174 [2023-12-16 17:57:03,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=667, Unknown=0, NotChecked=0, Total=870 [2023-12-16 17:57:03,960 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1536 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:03,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2269 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:57:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2023-12-16 17:57:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 7529. [2023-12-16 17:57:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7529 states, 5556 states have (on average 1.2996760259179265) internal successors, (7221), 5605 states have internal predecessors, (7221), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 9797 transitions. [2023-12-16 17:57:05,058 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 9797 transitions. Word has length 181 [2023-12-16 17:57:05,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:05,059 INFO L495 AbstractCegarLoop]: Abstraction has 7529 states and 9797 transitions. [2023-12-16 17:57:05,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.5) internal successors, (203), 14 states have internal predecessors, (203), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:05,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 9797 transitions. [2023-12-16 17:57:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-16 17:57:05,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:05,064 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:05,068 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 17:57:05,266 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 17:57:05,266 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:05,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash -76040749, now seen corresponding path program 1 times [2023-12-16 17:57:05,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:05,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585623678] [2023-12-16 17:57:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:05,267 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 17:57:05,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:05,268 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 17:57:05,269 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 17:57:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:05,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 17:57:05,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:05,695 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 79 proven. 12 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:05,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-16 17:57:05,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585623678] [2023-12-16 17:57:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585623678] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:05,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:05,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 17:57:05,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029325474] [2023-12-16 17:57:05,887 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:05,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 17:57:05,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:05,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 17:57:05,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-16 17:57:05,888 INFO L87 Difference]: Start difference. First operand 7529 states and 9797 transitions. Second operand has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:07,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:07,937 INFO L93 Difference]: Finished difference Result 14973 states and 19562 transitions. [2023-12-16 17:57:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 17:57:07,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 182 [2023-12-16 17:57:07,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:07,954 INFO L225 Difference]: With dead ends: 14973 [2023-12-16 17:57:07,954 INFO L226 Difference]: Without dead ends: 7696 [2023-12-16 17:57:07,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 357 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 17:57:07,963 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1339 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:07,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 2600 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 17:57:07,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7696 states. [2023-12-16 17:57:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7696 to 7558. [2023-12-16 17:57:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7558 states, 5585 states have (on average 1.2995523724261415) internal successors, (7258), 5634 states have internal predecessors, (7258), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7558 states to 7558 states and 9834 transitions. [2023-12-16 17:57:09,021 INFO L78 Accepts]: Start accepts. Automaton has 7558 states and 9834 transitions. Word has length 182 [2023-12-16 17:57:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:09,022 INFO L495 AbstractCegarLoop]: Abstraction has 7558 states and 9834 transitions. [2023-12-16 17:57:09,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2023-12-16 17:57:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7558 states and 9834 transitions. [2023-12-16 17:57:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-16 17:57:09,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:09,026 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:09,028 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 (38)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:09,228 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 [2023-12-16 17:57:09,228 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:09,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:09,229 INFO L85 PathProgramCache]: Analyzing trace with hash 92879876, now seen corresponding path program 1 times [2023-12-16 17:57:09,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024894751] [2023-12-16 17:57:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:09,229 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 17:57:09,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:09,230 INFO L229 MonitoredProcess]: Starting monitored process 39 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 17:57:09,232 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 (39)] Waiting until timeout for monitored process [2023-12-16 17:57:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:09,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:09,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-16 17:57:09,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:09,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:09,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024894751] [2023-12-16 17:57:09,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024894751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:09,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:09,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:09,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323484642] [2023-12-16 17:57:09,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:09,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:09,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:09,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:09,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:09,407 INFO L87 Difference]: Start difference. First operand 7558 states and 9834 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:11,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:11,031 INFO L93 Difference]: Finished difference Result 16548 states and 22107 transitions. [2023-12-16 17:57:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:11,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 181 [2023-12-16 17:57:11,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:11,048 INFO L225 Difference]: With dead ends: 16548 [2023-12-16 17:57:11,049 INFO L226 Difference]: Without dead ends: 9242 [2023-12-16 17:57:11,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:57:11,056 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 505 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:11,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1312 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9242 states. [2023-12-16 17:57:12,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9242 to 7546. [2023-12-16 17:57:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7546 states, 5573 states have (on average 1.2958909025659429) internal successors, (7222), 5622 states have internal predecessors, (7222), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 9798 transitions. [2023-12-16 17:57:12,114 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 9798 transitions. Word has length 181 [2023-12-16 17:57:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 7546 states and 9798 transitions. [2023-12-16 17:57:12,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 6 states have internal predecessors, (124), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 9798 transitions. [2023-12-16 17:57:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 17:57:12,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:12,120 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:12,125 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 (39)] Forceful destruction successful, exit code 0 [2023-12-16 17:57:12,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /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 17:57:12,323 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:12,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:12,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1256632450, now seen corresponding path program 1 times [2023-12-16 17:57:12,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:12,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748114071] [2023-12-16 17:57:12,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:12,324 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 17:57:12,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:12,325 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 17:57:12,325 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 17:57:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:12,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:12,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 17:57:12,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:12,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:12,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748114071] [2023-12-16 17:57:12,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748114071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:12,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:12,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:12,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428561567] [2023-12-16 17:57:12,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:12,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:12,526 INFO L87 Difference]: Start difference. First operand 7546 states and 9798 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:13,872 INFO L93 Difference]: Finished difference Result 15608 states and 20517 transitions. [2023-12-16 17:57:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:57:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 183 [2023-12-16 17:57:13,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:13,890 INFO L225 Difference]: With dead ends: 15608 [2023-12-16 17:57:13,890 INFO L226 Difference]: Without dead ends: 8286 [2023-12-16 17:57:13,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:57:13,898 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 460 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:13,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1748 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:57:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2023-12-16 17:57:14,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 7546. [2023-12-16 17:57:14,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7546 states, 5573 states have (on average 1.2928404808900054) internal successors, (7205), 5622 states have internal predecessors, (7205), 1288 states have call successors, (1288), 684 states have call predecessors, (1288), 684 states have return successors, (1288), 1239 states have call predecessors, (1288), 1288 states have call successors, (1288) [2023-12-16 17:57:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 9781 transitions. [2023-12-16 17:57:14,978 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 9781 transitions. Word has length 183 [2023-12-16 17:57:14,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:14,978 INFO L495 AbstractCegarLoop]: Abstraction has 7546 states and 9781 transitions. [2023-12-16 17:57:14,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 17:57:14,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 9781 transitions. [2023-12-16 17:57:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-16 17:57:14,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:14,982 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:14,984 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 (40)] Ended with exit code 0 [2023-12-16 17:57:15,184 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 17:57:15,184 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:15,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:15,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1905601892, now seen corresponding path program 1 times [2023-12-16 17:57:15,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:15,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259745602] [2023-12-16 17:57:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:15,185 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 17:57:15,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:15,186 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 17:57:15,187 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 17:57:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:15,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:15,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 39 proven. 58 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-16 17:57:15,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-16 17:57:15,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259745602] [2023-12-16 17:57:15,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259745602] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:15,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:15,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094887511] [2023-12-16 17:57:15,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:15,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:15,549 INFO L87 Difference]: Start difference. First operand 7546 states and 9781 transitions. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:17,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:17,078 INFO L93 Difference]: Finished difference Result 15181 states and 19633 transitions. [2023-12-16 17:57:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:17,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 184 [2023-12-16 17:57:17,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:17,092 INFO L225 Difference]: With dead ends: 15181 [2023-12-16 17:57:17,093 INFO L226 Difference]: Without dead ends: 7887 [2023-12-16 17:57:17,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:17,099 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1133 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:17,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 2097 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2023-12-16 17:57:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 5910. [2023-12-16 17:57:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 4400 states have (on average 1.2879545454545454) internal successors, (5667), 4438 states have internal predecessors, (5667), 970 states have call successors, (970), 539 states have call predecessors, (970), 539 states have return successors, (970), 932 states have call predecessors, (970), 970 states have call successors, (970) [2023-12-16 17:57:17,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7607 transitions. [2023-12-16 17:57:17,946 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7607 transitions. Word has length 184 [2023-12-16 17:57:17,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:17,946 INFO L495 AbstractCegarLoop]: Abstraction has 5910 states and 7607 transitions. [2023-12-16 17:57:17,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 9 states have internal predecessors, (169), 6 states have call successors, (38), 5 states have call predecessors, (38), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7607 transitions. [2023-12-16 17:57:17,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-16 17:57:17,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:17,949 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:17,951 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 (41)] Ended with exit code 0 [2023-12-16 17:57:18,149 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 17:57:18,149 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:18,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2041359211, now seen corresponding path program 1 times [2023-12-16 17:57:18,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:18,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40636378] [2023-12-16 17:57:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:18,150 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 17:57:18,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:18,151 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 17:57:18,152 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 17:57:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:18,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:57:18,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 17:57:18,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:18,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:18,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40636378] [2023-12-16 17:57:18,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40636378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:18,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:18,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:57:18,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788618009] [2023-12-16 17:57:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:18,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:57:18,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:57:18,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:57:18,318 INFO L87 Difference]: Start difference. First operand 5910 states and 7607 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:19,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:19,333 INFO L93 Difference]: Finished difference Result 12908 states and 16720 transitions. [2023-12-16 17:57:19,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:57:19,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2023-12-16 17:57:19,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:19,346 INFO L225 Difference]: With dead ends: 12908 [2023-12-16 17:57:19,346 INFO L226 Difference]: Without dead ends: 7250 [2023-12-16 17:57:19,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 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 17:57:19,350 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 168 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:19,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1037 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:57:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2023-12-16 17:57:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6955. [2023-12-16 17:57:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 5168 states have (on average 1.2877321981424148) internal successors, (6655), 5213 states have internal predecessors, (6655), 1151 states have call successors, (1151), 635 states have call predecessors, (1151), 635 states have return successors, (1151), 1106 states have call predecessors, (1151), 1151 states have call successors, (1151) [2023-12-16 17:57:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 8957 transitions. [2023-12-16 17:57:20,320 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 8957 transitions. Word has length 183 [2023-12-16 17:57:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:20,321 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 8957 transitions. [2023-12-16 17:57:20,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 17:57:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 8957 transitions. [2023-12-16 17:57:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-16 17:57:20,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:20,324 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:20,326 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 17:57:20,524 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 17:57:20,524 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:20,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1931282526, now seen corresponding path program 1 times [2023-12-16 17:57:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:20,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521818138] [2023-12-16 17:57:20,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:20,525 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 17:57:20,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:20,526 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 17:57:20,529 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 17:57:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:20,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:20,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 17:57:20,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 17:57:20,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:20,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521818138] [2023-12-16 17:57:20,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521818138] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:20,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:20,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:20,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936669144] [2023-12-16 17:57:20,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:20,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:20,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:20,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:20,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:20,894 INFO L87 Difference]: Start difference. First operand 6955 states and 8957 transitions. Second operand has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:22,700 INFO L93 Difference]: Finished difference Result 16193 states and 20926 transitions. [2023-12-16 17:57:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 17:57:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 187 [2023-12-16 17:57:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:22,722 INFO L225 Difference]: With dead ends: 16193 [2023-12-16 17:57:22,722 INFO L226 Difference]: Without dead ends: 9490 [2023-12-16 17:57:22,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-16 17:57:22,731 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 939 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:22,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2191 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:57:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2023-12-16 17:57:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 6955. [2023-12-16 17:57:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 5168 states have (on average 1.2827012383900929) internal successors, (6629), 5213 states have internal predecessors, (6629), 1151 states have call successors, (1151), 635 states have call predecessors, (1151), 635 states have return successors, (1151), 1106 states have call predecessors, (1151), 1151 states have call successors, (1151) [2023-12-16 17:57:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 8931 transitions. [2023-12-16 17:57:23,798 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 8931 transitions. Word has length 187 [2023-12-16 17:57:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:23,798 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 8931 transitions. [2023-12-16 17:57:23,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.7) internal successors, (177), 9 states have internal predecessors, (177), 6 states have call successors, (37), 5 states have call predecessors, (37), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 8931 transitions. [2023-12-16 17:57:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-16 17:57:23,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:23,801 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:23,808 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 17:57:24,003 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 17:57:24,004 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:24,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash 760852969, now seen corresponding path program 1 times [2023-12-16 17:57:24,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:24,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925877652] [2023-12-16 17:57:24,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:24,005 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 17:57:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:24,006 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 17:57:24,014 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 17:57:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:24,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:24,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 45 proven. 62 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 17:57:24,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-16 17:57:24,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:24,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925877652] [2023-12-16 17:57:24,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925877652] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:24,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:24,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:24,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378522135] [2023-12-16 17:57:24,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:24,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:24,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:24,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:24,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:24,368 INFO L87 Difference]: Start difference. First operand 6955 states and 8931 transitions. Second operand has 10 states, 10 states have (on average 17.8) internal successors, (178), 9 states have internal predecessors, (178), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:26,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:26,427 INFO L93 Difference]: Finished difference Result 15676 states and 20685 transitions. [2023-12-16 17:57:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:26,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.8) internal successors, (178), 9 states have internal predecessors, (178), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) Word has length 187 [2023-12-16 17:57:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:26,450 INFO L225 Difference]: With dead ends: 15676 [2023-12-16 17:57:26,450 INFO L226 Difference]: Without dead ends: 8973 [2023-12-16 17:57:26,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:26,459 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 696 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:26,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 3159 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:57:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2023-12-16 17:57:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 6495. [2023-12-16 17:57:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 4832 states have (on average 1.2781456953642385) internal successors, (6176), 4875 states have internal predecessors, (6176), 1049 states have call successors, (1049), 613 states have call predecessors, (1049), 613 states have return successors, (1049), 1006 states have call predecessors, (1049), 1049 states have call successors, (1049) [2023-12-16 17:57:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 8274 transitions. [2023-12-16 17:57:27,520 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 8274 transitions. Word has length 187 [2023-12-16 17:57:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:27,520 INFO L495 AbstractCegarLoop]: Abstraction has 6495 states and 8274 transitions. [2023-12-16 17:57:27,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.8) internal successors, (178), 9 states have internal predecessors, (178), 6 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (35), 7 states have call predecessors, (35), 6 states have call successors, (35) [2023-12-16 17:57:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 8274 transitions. [2023-12-16 17:57:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-16 17:57:27,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:27,523 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:27,525 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 17:57:27,723 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 17:57:27,723 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:27,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1375352644, now seen corresponding path program 1 times [2023-12-16 17:57:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:27,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20104107] [2023-12-16 17:57:27,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:27,724 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 17:57:27,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:27,725 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 17:57:27,730 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 17:57:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:27,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:27,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 80 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:57:27,976 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 17:57:28,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:28,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20104107] [2023-12-16 17:57:28,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [20104107] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:28,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:28,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-16 17:57:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076430340] [2023-12-16 17:57:28,097 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:28,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:28,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:28,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:28,098 INFO L87 Difference]: Start difference. First operand 6495 states and 8274 transitions. Second operand has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:29,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:29,758 INFO L93 Difference]: Finished difference Result 13878 states and 17883 transitions. [2023-12-16 17:57:29,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:57:29,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) Word has length 190 [2023-12-16 17:57:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:29,773 INFO L225 Difference]: With dead ends: 13878 [2023-12-16 17:57:29,773 INFO L226 Difference]: Without dead ends: 7635 [2023-12-16 17:57:29,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-12-16 17:57:29,779 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 1025 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 2117 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:29,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 2117 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:29,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2023-12-16 17:57:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6495. [2023-12-16 17:57:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 4832 states have (on average 1.275455298013245) internal successors, (6163), 4875 states have internal predecessors, (6163), 1049 states have call successors, (1049), 613 states have call predecessors, (1049), 613 states have return successors, (1049), 1006 states have call predecessors, (1049), 1049 states have call successors, (1049) [2023-12-16 17:57:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 8261 transitions. [2023-12-16 17:57:30,783 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 8261 transitions. Word has length 190 [2023-12-16 17:57:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:30,784 INFO L495 AbstractCegarLoop]: Abstraction has 6495 states and 8261 transitions. [2023-12-16 17:57:30,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.2) internal successors, (172), 9 states have internal predecessors, (172), 6 states have call successors, (39), 5 states have call predecessors, (39), 7 states have return successors, (37), 7 states have call predecessors, (37), 6 states have call successors, (37) [2023-12-16 17:57:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 8261 transitions. [2023-12-16 17:57:30,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-16 17:57:30,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:30,786 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:30,789 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 17:57:30,988 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 17:57:30,988 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:30,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash -419830590, now seen corresponding path program 1 times [2023-12-16 17:57:30,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:30,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200788142] [2023-12-16 17:57:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:30,989 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 17:57:30,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:30,990 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 17:57:30,991 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 17:57:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:31,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:57:31,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-16 17:57:31,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:57:31,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:31,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200788142] [2023-12-16 17:57:31,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200788142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:57:31,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:57:31,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:57:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132012745] [2023-12-16 17:57:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:57:31,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:57:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:31,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:57:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:57:31,160 INFO L87 Difference]: Start difference. First operand 6495 states and 8261 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 17:57:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:57:33,046 INFO L93 Difference]: Finished difference Result 16979 states and 22035 transitions. [2023-12-16 17:57:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:57:33,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2023-12-16 17:57:33,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:57:33,064 INFO L225 Difference]: With dead ends: 16979 [2023-12-16 17:57:33,065 INFO L226 Difference]: Without dead ends: 10736 [2023-12-16 17:57:33,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:33,070 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 204 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:33,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2398 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:57:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2023-12-16 17:57:34,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 8154. [2023-12-16 17:57:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8154 states, 6028 states have (on average 1.2730590577305905) internal successors, (7674), 6084 states have internal predecessors, (7674), 1349 states have call successors, (1349), 776 states have call predecessors, (1349), 776 states have return successors, (1349), 1293 states have call predecessors, (1349), 1349 states have call successors, (1349) [2023-12-16 17:57:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8154 states to 8154 states and 10372 transitions. [2023-12-16 17:57:34,409 INFO L78 Accepts]: Start accepts. Automaton has 8154 states and 10372 transitions. Word has length 192 [2023-12-16 17:57:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:57:34,409 INFO L495 AbstractCegarLoop]: Abstraction has 8154 states and 10372 transitions. [2023-12-16 17:57:34,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 17:57:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8154 states and 10372 transitions. [2023-12-16 17:57:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 17:57:34,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:57:34,413 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-16 17:57:34,415 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 17:57:34,613 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 17:57:34,613 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:57:34,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:57:34,614 INFO L85 PathProgramCache]: Analyzing trace with hash 872115141, now seen corresponding path program 1 times [2023-12-16 17:57:34,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:57:34,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830411390] [2023-12-16 17:57:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:57:34,614 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 17:57:34,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:57:34,615 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 17:57:34,622 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 17:57:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:57:34,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:57:34,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:57:34,886 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 99 proven. 22 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 17:57:34,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:57:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-16 17:57:35,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:57:35,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830411390] [2023-12-16 17:57:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830411390] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:57:35,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:57:35,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-16 17:57:35,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597910574] [2023-12-16 17:57:35,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:57:35,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 17:57:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:57:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 17:57:35,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-16 17:57:35,005 INFO L87 Difference]: Start difference. First operand 8154 states and 10372 transitions. Second operand has 10 states, 10 states have (on average 17.7) internal successors, (177), 10 states have internal predecessors, (177), 5 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Received shutdown request... [2023-12-16 17:57:36,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 17:57:36,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 383 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-16 17:57:36,785 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 477 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:57:36,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 1766 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:57:36,786 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:57:36,791 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 (47)] Ended with exit code 0 [2023-12-16 17:57:36,815 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 17:57:36,826 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 (47)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:57:36,988 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 17:57:36,990 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (8154states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (13894 states constructed, input type IntersectNwa). [2023-12-16 17:57:36,996 INFO L445 BasicCegarLoop]: Path program 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:57:36,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:57:36,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:57:36 BoogieIcfgContainer [2023-12-16 17:57:36,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:57:36,999 INFO L158 Benchmark]: Toolchain (without parser) took 67120.73ms. Allocated memory was 181.4MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 131.9MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.65ms. Allocated memory is still 181.4MB. Free memory was 131.6MB in the beginning and 112.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.28ms. Allocated memory is still 181.4MB. Free memory was 112.7MB in the beginning and 109.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: Boogie Preprocessor took 63.20ms. Allocated memory is still 181.4MB. Free memory was 109.6MB in the beginning and 105.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: RCFGBuilder took 544.47ms. Allocated memory is still 181.4MB. Free memory was 105.4MB in the beginning and 120.2MB in the end (delta: -14.8MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. [2023-12-16 17:57:36,999 INFO L158 Benchmark]: TraceAbstraction took 66210.44ms. Allocated memory was 181.4MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 119.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 17:57:37,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 253.65ms. Allocated memory is still 181.4MB. Free memory was 131.6MB in the beginning and 112.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.28ms. Allocated memory is still 181.4MB. Free memory was 112.7MB in the beginning and 109.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.20ms. Allocated memory is still 181.4MB. Free memory was 109.6MB in the beginning and 105.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 544.47ms. Allocated memory is still 181.4MB. Free memory was 105.4MB in the beginning and 120.2MB in the end (delta: -14.8MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. * TraceAbstraction took 66210.44ms. Allocated memory was 181.4MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 119.7MB in the beginning and 2.1GB in the end (delta: -2.0GB). 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: 615]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 615). Cancelled while NwaCegarLoop was constructing difference of abstraction (8154states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (13894 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 164 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.2s, OverallIterations: 46, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19622 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19428 mSDsluCounter, 65410 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50487 mSDsCounter, 4389 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12306 IncrementalHoareTripleChecker+Invalid, 16695 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4389 mSolverCounterUnsat, 14923 mSDtfsCounter, 12306 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8542 GetRequests, 8025 SyntacticMatches, 23 SemanticMatches, 494 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8154occurred in iteration=45, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.1s AutomataMinimizationTime, 45 MinimizatonAttempts, 21435 StatesRemovedByMinimization, 41 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 5352 NumberOfCodeBlocks, 5352 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 8183 ConstructedInterpolants, 0 QuantifiedInterpolants, 24753 SizeOfPredicates, 85 NumberOfNonLiveVariables, 12721 ConjunctsInSsa, 252 ConjunctsInUnsatCore, 65 InterpolantComputations, 32 PerfectInterpolantSequences, 4105/4721 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