/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 [2023-12-25 07:22:16,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:22:16,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:22:16,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:22:16,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:22:16,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:22:16,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:22:16,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:22:16,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:22:16,512 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:22:16,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:22:16,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:22:16,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:22:16,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:22:16,514 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:22:16,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:22:16,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:22:16,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:22:16,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:22:16,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:22:16,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:22:16,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:22:16,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:22:16,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:22:16,516 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:22:16,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:22:16,517 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:22:16,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:22:16,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:22:16,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:22:16,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:22:16,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:22:16,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:22:16,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:22:16,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:22:16,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:22:16,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:22:16,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:22:16,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:22:16,525 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:22:16,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:22:16,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:22:16,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:22:16,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:22:16,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:22:16,726 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:22:16,727 INFO L431 ainManager$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 [2023-12-25 07:22:17,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:22:17,923 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:22:17,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2023-12-25 07:22:17,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc437d4ad/cd110f074a004364a288f9846c7e2d2f/FLAG0e1df9ff0 [2023-12-25 07:22:17,945 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc437d4ad/cd110f074a004364a288f9846c7e2d2f [2023-12-25 07:22:17,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:22:17,947 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:22:17,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:22:17,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:22:17,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:22:17,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:22:17" (1/1) ... [2023-12-25 07:22:17,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c750d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:17, skipping insertion in model container [2023-12-25 07:22:17,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:22:17" (1/1) ... [2023-12-25 07:22:17,990 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:22:18,158 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] [2023-12-25 07:22:18,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:22:18,170 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:22:18,215 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] [2023-12-25 07:22:18,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:22:18,236 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:22:18,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18 WrapperNode [2023-12-25 07:22:18,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:22:18,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:22:18,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:22:18,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:22:18,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,292 INFO L138 Inliner]: procedures = 32, calls = 47, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 481 [2023-12-25 07:22:18,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:22:18,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:22:18,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:22:18,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:22:18,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,315 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]. [2023-12-25 07:22:18,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:22:18,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:22:18,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:22:18,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:22:18,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (1/1) ... [2023-12-25 07:22:18,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:22:18,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:22:18,395 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) [2023-12-25 07:22:18,420 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 [2023-12-25 07:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2023-12-25 07:22:18,426 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2023-12-25 07:22:18,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2023-12-25 07:22:18,428 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2023-12-25 07:22:18,428 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-25 07:22:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-25 07:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 07:22:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 07:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2023-12-25 07:22:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2023-12-25 07:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:22:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:22:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2023-12-25 07:22:18,429 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2023-12-25 07:22:18,547 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:22:18,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:22:19,013 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:22:19,129 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:22:19,130 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 07:22:19,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:22:19 BoogieIcfgContainer [2023-12-25 07:22:19,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:22:19,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:22:19,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:22:19,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:22:19,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:22:17" (1/3) ... [2023-12-25 07:22:19,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f339da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:22:19, skipping insertion in model container [2023-12-25 07:22:19,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:22:18" (2/3) ... [2023-12-25 07:22:19,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f339da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:22:19, skipping insertion in model container [2023-12-25 07:22:19,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:22:19" (3/3) ... [2023-12-25 07:22:19,139 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2023-12-25 07:22:19,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:22:19,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:22:19,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:22:19,209 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;@28597a27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:22:19,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:22:19,214 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) [2023-12-25 07:22:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-25 07:22:19,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:19,223 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] [2023-12-25 07:22:19,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:19,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash 416796339, now seen corresponding path program 1 times [2023-12-25 07:22:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157473463] [2023-12-25 07:22:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:19,238 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 [2023-12-25 07:22:19,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:19,242 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) [2023-12-25 07:22:19,246 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 (2)] Waiting until timeout for monitored process [2023-12-25 07:22:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:19,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:22:19,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:19,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:19,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157473463] [2023-12-25 07:22:19,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157473463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:19,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:19,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:22:19,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25645963] [2023-12-25 07:22:19,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:19,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:22:19,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:19,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:22:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:22:19,392 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) [2023-12-25 07:22:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:19,446 INFO L93 Difference]: Finished difference Result 313 states and 525 transitions. [2023-12-25 07:22:19,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:22:19,448 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 [2023-12-25 07:22:19,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:19,455 INFO L225 Difference]: With dead ends: 313 [2023-12-25 07:22:19,455 INFO L226 Difference]: Without dead ends: 162 [2023-12-25 07:22:19,458 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 [2023-12-25 07:22:19,461 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 [2023-12-25 07:22:19,461 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] [2023-12-25 07:22:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-25 07:22:19,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-25 07:22:19,502 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) [2023-12-25 07:22:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 257 transitions. [2023-12-25 07:22:19,505 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 257 transitions. Word has length 23 [2023-12-25 07:22:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:19,505 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 257 transitions. [2023-12-25 07:22:19,506 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) [2023-12-25 07:22:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 257 transitions. [2023-12-25 07:22:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-25 07:22:19,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:19,507 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] [2023-12-25 07:22:19,512 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 [2023-12-25 07:22:19,712 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 [2023-12-25 07:22:19,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:19,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:19,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1577348367, now seen corresponding path program 1 times [2023-12-25 07:22:19,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:19,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233721154] [2023-12-25 07:22:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:19,714 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 [2023-12-25 07:22:19,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:19,715 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) [2023-12-25 07:22:19,717 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 [2023-12-25 07:22:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:19,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 07:22:19,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:19,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:19,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:19,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233721154] [2023-12-25 07:22:19,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233721154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:19,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:19,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 07:22:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786132688] [2023-12-25 07:22:19,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:19,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:22:19,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:19,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:22:19,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:22:19,865 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) [2023-12-25 07:22:19,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:19,992 INFO L93 Difference]: Finished difference Result 415 states and 665 transitions. [2023-12-25 07:22:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:22:19,997 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 [2023-12-25 07:22:19,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:19,999 INFO L225 Difference]: With dead ends: 415 [2023-12-25 07:22:19,999 INFO L226 Difference]: Without dead ends: 266 [2023-12-25 07:22:20,000 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 [2023-12-25 07:22:20,001 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:22:20,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1213 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:22:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-25 07:22:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 162. [2023-12-25 07:22:20,018 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) [2023-12-25 07:22:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 245 transitions. [2023-12-25 07:22:20,019 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 245 transitions. Word has length 23 [2023-12-25 07:22:20,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:20,019 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 245 transitions. [2023-12-25 07:22:20,019 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) [2023-12-25 07:22:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 245 transitions. [2023-12-25 07:22:20,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-25 07:22:20,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:20,023 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] [2023-12-25 07:22:20,037 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 [2023-12-25 07:22:20,225 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 [2023-12-25 07:22:20,228 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:20,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2120967277, now seen corresponding path program 1 times [2023-12-25 07:22:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:20,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231680551] [2023-12-25 07:22:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:20,229 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 [2023-12-25 07:22:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:20,232 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) [2023-12-25 07:22:20,234 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 [2023-12-25 07:22:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:20,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:20,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:20,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:20,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:20,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231680551] [2023-12-25 07:22:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231680551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:20,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:20,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:20,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109008778] [2023-12-25 07:22:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:20,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:20,335 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) [2023-12-25 07:22:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:20,390 INFO L93 Difference]: Finished difference Result 314 states and 484 transitions. [2023-12-25 07:22:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:20,390 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 [2023-12-25 07:22:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:20,394 INFO L225 Difference]: With dead ends: 314 [2023-12-25 07:22:20,394 INFO L226 Difference]: Without dead ends: 168 [2023-12-25 07:22:20,397 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 [2023-12-25 07:22:20,399 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 [2023-12-25 07:22:20,400 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] [2023-12-25 07:22:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-25 07:22:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-12-25 07:22:20,415 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) [2023-12-25 07:22:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 248 transitions. [2023-12-25 07:22:20,416 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 248 transitions. Word has length 34 [2023-12-25 07:22:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:20,417 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 248 transitions. [2023-12-25 07:22:20,417 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) [2023-12-25 07:22:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 248 transitions. [2023-12-25 07:22:20,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 07:22:20,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:20,418 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] [2023-12-25 07:22:20,424 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 [2023-12-25 07:22:20,620 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 [2023-12-25 07:22:20,621 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:20,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1787555156, now seen corresponding path program 1 times [2023-12-25 07:22:20,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:20,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337791579] [2023-12-25 07:22:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:20,622 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 [2023-12-25 07:22:20,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:20,623 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) [2023-12-25 07:22:20,624 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 [2023-12-25 07:22:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:20,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:22:20,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:20,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:20,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337791579] [2023-12-25 07:22:20,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337791579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:20,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:20,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543395226] [2023-12-25 07:22:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:20,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:22:20,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:20,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:22:20,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:22:20,784 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) [2023-12-25 07:22:20,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:20,916 INFO L93 Difference]: Finished difference Result 347 states and 528 transitions. [2023-12-25 07:22:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:20,916 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 [2023-12-25 07:22:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:20,918 INFO L225 Difference]: With dead ends: 347 [2023-12-25 07:22:20,918 INFO L226 Difference]: Without dead ends: 197 [2023-12-25 07:22:20,918 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 [2023-12-25 07:22:20,919 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 [2023-12-25 07:22:20,919 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] [2023-12-25 07:22:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-25 07:22:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2023-12-25 07:22:20,930 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) [2023-12-25 07:22:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 293 transitions. [2023-12-25 07:22:20,931 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 293 transitions. Word has length 48 [2023-12-25 07:22:20,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:20,932 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 293 transitions. [2023-12-25 07:22:20,932 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) [2023-12-25 07:22:20,932 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 293 transitions. [2023-12-25 07:22:20,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 07:22:20,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:20,933 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] [2023-12-25 07:22:20,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-25 07:22:21,135 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 [2023-12-25 07:22:21,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:21,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1247987491, now seen corresponding path program 1 times [2023-12-25 07:22:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:21,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838301687] [2023-12-25 07:22:21,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:21,137 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 [2023-12-25 07:22:21,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:21,138 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) [2023-12-25 07:22:21,139 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 [2023-12-25 07:22:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:21,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:22:21,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:21,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:21,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:21,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838301687] [2023-12-25 07:22:21,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838301687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:21,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:21,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902751263] [2023-12-25 07:22:21,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:21,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:22:21,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:22:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:22:21,284 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) [2023-12-25 07:22:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:21,412 INFO L93 Difference]: Finished difference Result 348 states and 527 transitions. [2023-12-25 07:22:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:21,413 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 [2023-12-25 07:22:21,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:21,416 INFO L225 Difference]: With dead ends: 348 [2023-12-25 07:22:21,416 INFO L226 Difference]: Without dead ends: 198 [2023-12-25 07:22:21,417 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 [2023-12-25 07:22:21,419 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 [2023-12-25 07:22:21,424 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] [2023-12-25 07:22:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-25 07:22:21,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2023-12-25 07:22:21,439 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) [2023-12-25 07:22:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 293 transitions. [2023-12-25 07:22:21,441 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 293 transitions. Word has length 49 [2023-12-25 07:22:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:21,442 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 293 transitions. [2023-12-25 07:22:21,443 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) [2023-12-25 07:22:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 293 transitions. [2023-12-25 07:22:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 07:22:21,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:21,448 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] [2023-12-25 07:22:21,451 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 [2023-12-25 07:22:21,651 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 [2023-12-25 07:22:21,651 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:21,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:21,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1607659590, now seen corresponding path program 1 times [2023-12-25 07:22:21,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:21,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481545372] [2023-12-25 07:22:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:21,652 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 [2023-12-25 07:22:21,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:21,653 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) [2023-12-25 07:22:21,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-25 07:22:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:21,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:22:21,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:21,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:21,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:21,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481545372] [2023-12-25 07:22:21,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481545372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:21,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:21,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:22:21,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823919791] [2023-12-25 07:22:21,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:21,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:22:21,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:21,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:22:21,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:22:21,756 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) [2023-12-25 07:22:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:21,792 INFO L93 Difference]: Finished difference Result 512 states and 771 transitions. [2023-12-25 07:22:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:22:21,793 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 [2023-12-25 07:22:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:21,796 INFO L225 Difference]: With dead ends: 512 [2023-12-25 07:22:21,796 INFO L226 Difference]: Without dead ends: 362 [2023-12-25 07:22:21,797 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 [2023-12-25 07:22:21,798 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 [2023-12-25 07:22:21,799 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] [2023-12-25 07:22:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2023-12-25 07:22:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2023-12-25 07:22:21,829 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) [2023-12-25 07:22:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 536 transitions. [2023-12-25 07:22:21,831 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 536 transitions. Word has length 52 [2023-12-25 07:22:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:21,832 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 536 transitions. [2023-12-25 07:22:21,832 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) [2023-12-25 07:22:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 536 transitions. [2023-12-25 07:22:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:22:21,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:21,833 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] [2023-12-25 07:22:21,838 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 [2023-12-25 07:22:22,038 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 [2023-12-25 07:22:22,039 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:22,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:22,039 INFO L85 PathProgramCache]: Analyzing trace with hash 596955304, now seen corresponding path program 1 times [2023-12-25 07:22:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:22,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193342521] [2023-12-25 07:22:22,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:22,040 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 [2023-12-25 07:22:22,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:22,041 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) [2023-12-25 07:22:22,042 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 [2023-12-25 07:22:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:22,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:22:22,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:22,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:22,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:22,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193342521] [2023-12-25 07:22:22,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193342521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:22,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:22,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:22:22,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333644350] [2023-12-25 07:22:22,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:22,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:22:22,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:22:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:22:22,164 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) [2023-12-25 07:22:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:22,208 INFO L93 Difference]: Finished difference Result 938 states and 1410 transitions. [2023-12-25 07:22:22,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:22:22,209 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 [2023-12-25 07:22:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:22,212 INFO L225 Difference]: With dead ends: 938 [2023-12-25 07:22:22,212 INFO L226 Difference]: Without dead ends: 650 [2023-12-25 07:22:22,213 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 [2023-12-25 07:22:22,213 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 [2023-12-25 07:22:22,214 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] [2023-12-25 07:22:22,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-25 07:22:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 637. [2023-12-25 07:22:22,247 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) [2023-12-25 07:22:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 948 transitions. [2023-12-25 07:22:22,250 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 948 transitions. Word has length 53 [2023-12-25 07:22:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:22,250 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 948 transitions. [2023-12-25 07:22:22,251 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) [2023-12-25 07:22:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 948 transitions. [2023-12-25 07:22:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:22:22,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:22,251 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] [2023-12-25 07:22:22,260 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 [2023-12-25 07:22:22,455 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 [2023-12-25 07:22:22,455 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:22,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:22,456 INFO L85 PathProgramCache]: Analyzing trace with hash -682908374, now seen corresponding path program 1 times [2023-12-25 07:22:22,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:22,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506137839] [2023-12-25 07:22:22,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:22,456 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 [2023-12-25 07:22:22,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:22,458 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) [2023-12-25 07:22:22,462 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 [2023-12-25 07:22:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:22,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:22:22,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 07:22:22,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:22,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:22,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506137839] [2023-12-25 07:22:22,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1506137839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:22,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:22,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 07:22:22,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181873832] [2023-12-25 07:22:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:22,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:22:22,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:22,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:22:22,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:22:22,558 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) [2023-12-25 07:22:22,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:22,617 INFO L93 Difference]: Finished difference Result 1073 states and 1612 transitions. [2023-12-25 07:22:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:22,617 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 [2023-12-25 07:22:22,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:22,620 INFO L225 Difference]: With dead ends: 1073 [2023-12-25 07:22:22,620 INFO L226 Difference]: Without dead ends: 497 [2023-12-25 07:22:22,621 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 [2023-12-25 07:22:22,622 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 [2023-12-25 07:22:22,622 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] [2023-12-25 07:22:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-25 07:22:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 497. [2023-12-25 07:22:22,651 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) [2023-12-25 07:22:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 738 transitions. [2023-12-25 07:22:22,654 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 738 transitions. Word has length 53 [2023-12-25 07:22:22,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:22,654 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 738 transitions. [2023-12-25 07:22:22,654 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) [2023-12-25 07:22:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 738 transitions. [2023-12-25 07:22:22,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:22:22,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:22,657 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] [2023-12-25 07:22:22,659 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 [2023-12-25 07:22:22,859 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 [2023-12-25 07:22:22,860 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:22,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1187529699, now seen corresponding path program 1 times [2023-12-25 07:22:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177319790] [2023-12-25 07:22:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:22,861 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 [2023-12-25 07:22:22,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:22,862 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) [2023-12-25 07:22:22,863 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 [2023-12-25 07:22:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:22,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:22,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:22,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 07:22:22,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:22,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:22,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177319790] [2023-12-25 07:22:22,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177319790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:22,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:22,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:22,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785405100] [2023-12-25 07:22:22,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:22,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:22,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:22,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:22,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:22,962 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) [2023-12-25 07:22:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:23,010 INFO L93 Difference]: Finished difference Result 933 states and 1399 transitions. [2023-12-25 07:22:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:23,010 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 [2023-12-25 07:22:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:23,013 INFO L225 Difference]: With dead ends: 933 [2023-12-25 07:22:23,013 INFO L226 Difference]: Without dead ends: 518 [2023-12-25 07:22:23,015 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 [2023-12-25 07:22:23,016 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 [2023-12-25 07:22:23,016 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] [2023-12-25 07:22:23,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-12-25 07:22:23,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 512. [2023-12-25 07:22:23,040 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) [2023-12-25 07:22:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 750 transitions. [2023-12-25 07:22:23,042 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 750 transitions. Word has length 54 [2023-12-25 07:22:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:23,043 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 750 transitions. [2023-12-25 07:22:23,043 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) [2023-12-25 07:22:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 750 transitions. [2023-12-25 07:22:23,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 07:22:23,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:23,044 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] [2023-12-25 07:22:23,051 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 [2023-12-25 07:22:23,247 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 [2023-12-25 07:22:23,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:23,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -260060887, now seen corresponding path program 1 times [2023-12-25 07:22:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144406471] [2023-12-25 07:22:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:23,248 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 [2023-12-25 07:22:23,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:23,249 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) [2023-12-25 07:22:23,251 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 [2023-12-25 07:22:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:23,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:23,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 07:22:23,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:23,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:23,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144406471] [2023-12-25 07:22:23,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144406471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:23,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:23,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:23,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637187994] [2023-12-25 07:22:23,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:23,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:23,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:23,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:23,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:23,339 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) [2023-12-25 07:22:23,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:23,394 INFO L93 Difference]: Finished difference Result 963 states and 1438 transitions. [2023-12-25 07:22:23,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:23,394 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 [2023-12-25 07:22:23,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:23,397 INFO L225 Difference]: With dead ends: 963 [2023-12-25 07:22:23,397 INFO L226 Difference]: Without dead ends: 533 [2023-12-25 07:22:23,398 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 [2023-12-25 07:22:23,398 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 [2023-12-25 07:22:23,399 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] [2023-12-25 07:22:23,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-25 07:22:23,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 527. [2023-12-25 07:22:23,420 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) [2023-12-25 07:22:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 762 transitions. [2023-12-25 07:22:23,422 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 762 transitions. Word has length 62 [2023-12-25 07:22:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:23,423 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 762 transitions. [2023-12-25 07:22:23,423 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) [2023-12-25 07:22:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 762 transitions. [2023-12-25 07:22:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 07:22:23,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:23,424 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] [2023-12-25 07:22:23,428 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 [2023-12-25 07:22:23,626 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 [2023-12-25 07:22:23,626 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:23,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:23,627 INFO L85 PathProgramCache]: Analyzing trace with hash -760942829, now seen corresponding path program 1 times [2023-12-25 07:22:23,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:23,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285545311] [2023-12-25 07:22:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:23,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:22:23,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:23,629 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) [2023-12-25 07:22:23,633 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 [2023-12-25 07:22:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:23,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:23,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:23,714 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 07:22:23,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:23,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285545311] [2023-12-25 07:22:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285545311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:23,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:23,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:23,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131338193] [2023-12-25 07:22:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:23,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:23,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:23,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:23,716 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) [2023-12-25 07:22:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:23,765 INFO L93 Difference]: Finished difference Result 990 states and 1444 transitions. [2023-12-25 07:22:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:23,766 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 [2023-12-25 07:22:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:23,768 INFO L225 Difference]: With dead ends: 990 [2023-12-25 07:22:23,768 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 07:22:23,770 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 [2023-12-25 07:22:23,770 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 [2023-12-25 07:22:23,770 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] [2023-12-25 07:22:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 07:22:23,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2023-12-25 07:22:23,791 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) [2023-12-25 07:22:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 771 transitions. [2023-12-25 07:22:23,794 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 771 transitions. Word has length 70 [2023-12-25 07:22:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:23,794 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 771 transitions. [2023-12-25 07:22:23,794 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) [2023-12-25 07:22:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 771 transitions. [2023-12-25 07:22:23,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-25 07:22:23,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:23,795 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] [2023-12-25 07:22:23,811 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 [2023-12-25 07:22:23,998 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 [2023-12-25 07:22:23,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:23,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1635516474, now seen corresponding path program 1 times [2023-12-25 07:22:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:23,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558400407] [2023-12-25 07:22:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:23,999 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 [2023-12-25 07:22:24,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:24,000 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) [2023-12-25 07:22:24,004 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 [2023-12-25 07:22:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:24,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:24,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:24,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:22:24,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 07:22:24,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558400407] [2023-12-25 07:22:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558400407] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 07:22:24,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 07:22:24,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-25 07:22:24,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903413852] [2023-12-25 07:22:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:24,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:24,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:24,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:24,273 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) [2023-12-25 07:22:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:24,481 INFO L93 Difference]: Finished difference Result 1560 states and 2265 transitions. [2023-12-25 07:22:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:24,482 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 [2023-12-25 07:22:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:24,487 INFO L225 Difference]: With dead ends: 1560 [2023-12-25 07:22:24,487 INFO L226 Difference]: Without dead ends: 1103 [2023-12-25 07:22:24,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-25 07:22:24,489 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 [2023-12-25 07:22:24,489 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] [2023-12-25 07:22:24,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-12-25 07:22:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 680. [2023-12-25 07:22:24,525 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) [2023-12-25 07:22:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 967 transitions. [2023-12-25 07:22:24,528 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 967 transitions. Word has length 70 [2023-12-25 07:22:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:24,528 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 967 transitions. [2023-12-25 07:22:24,528 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) [2023-12-25 07:22:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 967 transitions. [2023-12-25 07:22:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:22:24,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:24,529 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] [2023-12-25 07:22:24,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-25 07:22:24,732 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 [2023-12-25 07:22:24,732 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:24,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1017692974, now seen corresponding path program 1 times [2023-12-25 07:22:24,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:24,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164941665] [2023-12-25 07:22:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:24,733 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 [2023-12-25 07:22:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:24,734 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) [2023-12-25 07:22:24,763 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 (14)] Waiting until timeout for monitored process [2023-12-25 07:22:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:24,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:24,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:24,817 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:24,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:24,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:24,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164941665] [2023-12-25 07:22:24,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164941665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:24,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:24,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:24,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751731142] [2023-12-25 07:22:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:24,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:24,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:24,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:24,818 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) [2023-12-25 07:22:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:24,891 INFO L93 Difference]: Finished difference Result 1275 states and 1850 transitions. [2023-12-25 07:22:24,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:24,891 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 [2023-12-25 07:22:24,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:24,894 INFO L225 Difference]: With dead ends: 1275 [2023-12-25 07:22:24,894 INFO L226 Difference]: Without dead ends: 708 [2023-12-25 07:22:24,895 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 [2023-12-25 07:22:24,896 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 [2023-12-25 07:22:24,896 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] [2023-12-25 07:22:24,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-12-25 07:22:24,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 700. [2023-12-25 07:22:24,934 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) [2023-12-25 07:22:24,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 983 transitions. [2023-12-25 07:22:24,937 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 983 transitions. Word has length 77 [2023-12-25 07:22:24,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:24,937 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 983 transitions. [2023-12-25 07:22:24,937 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) [2023-12-25 07:22:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 983 transitions. [2023-12-25 07:22:24,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 07:22:24,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:24,938 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] [2023-12-25 07:22:24,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-25 07:22:25,141 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 [2023-12-25 07:22:25,141 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:25,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1611172548, now seen corresponding path program 1 times [2023-12-25 07:22:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:25,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866538422] [2023-12-25 07:22:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:25,142 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 [2023-12-25 07:22:25,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:25,144 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) [2023-12-25 07:22:25,150 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 [2023-12-25 07:22:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:25,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:25,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:25,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:25,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:25,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866538422] [2023-12-25 07:22:25,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866538422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:25,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:25,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:25,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608194099] [2023-12-25 07:22:25,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:25,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:25,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:25,245 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) [2023-12-25 07:22:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:25,307 INFO L93 Difference]: Finished difference Result 1308 states and 1853 transitions. [2023-12-25 07:22:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:25,307 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 [2023-12-25 07:22:25,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:25,311 INFO L225 Difference]: With dead ends: 1308 [2023-12-25 07:22:25,311 INFO L226 Difference]: Without dead ends: 724 [2023-12-25 07:22:25,313 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 [2023-12-25 07:22:25,313 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 [2023-12-25 07:22:25,313 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] [2023-12-25 07:22:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2023-12-25 07:22:25,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 716. [2023-12-25 07:22:25,344 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) [2023-12-25 07:22:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 995 transitions. [2023-12-25 07:22:25,347 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 995 transitions. Word has length 85 [2023-12-25 07:22:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:25,348 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 995 transitions. [2023-12-25 07:22:25,348 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) [2023-12-25 07:22:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 995 transitions. [2023-12-25 07:22:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 07:22:25,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:25,349 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] [2023-12-25 07:22:25,362 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 [2023-12-25 07:22:25,560 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 [2023-12-25 07:22:25,560 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:25,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -113305042, now seen corresponding path program 1 times [2023-12-25 07:22:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811513891] [2023-12-25 07:22:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:25,561 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 [2023-12-25 07:22:25,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:25,562 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) [2023-12-25 07:22:25,589 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 [2023-12-25 07:22:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:25,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:25,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-25 07:22:25,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-25 07:22:25,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811513891] [2023-12-25 07:22:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811513891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:25,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:25,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-25 07:22:25,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542671337] [2023-12-25 07:22:25,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:25,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 07:22:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 07:22:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:25,775 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) [2023-12-25 07:22:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:25,998 INFO L93 Difference]: Finished difference Result 1467 states and 2084 transitions. [2023-12-25 07:22:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:25,999 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 [2023-12-25 07:22:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:26,003 INFO L225 Difference]: With dead ends: 1467 [2023-12-25 07:22:26,004 INFO L226 Difference]: Without dead ends: 875 [2023-12-25 07:22:26,006 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 [2023-12-25 07:22:26,006 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 [2023-12-25 07:22:26,006 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] [2023-12-25 07:22:26,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-12-25 07:22:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 716. [2023-12-25 07:22:26,040 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) [2023-12-25 07:22:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 994 transitions. [2023-12-25 07:22:26,042 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 994 transitions. Word has length 86 [2023-12-25 07:22:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:26,043 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 994 transitions. [2023-12-25 07:22:26,043 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) [2023-12-25 07:22:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 994 transitions. [2023-12-25 07:22:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-25 07:22:26,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:26,044 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] [2023-12-25 07:22:26,050 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 [2023-12-25 07:22:26,246 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 [2023-12-25 07:22:26,247 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:26,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -2130270663, now seen corresponding path program 1 times [2023-12-25 07:22:26,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:26,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226511362] [2023-12-25 07:22:26,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:26,248 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 [2023-12-25 07:22:26,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:26,249 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) [2023-12-25 07:22:26,250 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 [2023-12-25 07:22:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:26,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:26,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 07:22:26,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:26,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226511362] [2023-12-25 07:22:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226511362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:26,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:22:26,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349344840] [2023-12-25 07:22:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:26,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:26,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:26,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:26,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:22:26,405 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) [2023-12-25 07:22:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:26,781 INFO L93 Difference]: Finished difference Result 1703 states and 2432 transitions. [2023-12-25 07:22:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:22:26,782 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 [2023-12-25 07:22:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:26,787 INFO L225 Difference]: With dead ends: 1703 [2023-12-25 07:22:26,787 INFO L226 Difference]: Without dead ends: 1105 [2023-12-25 07:22:26,789 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 [2023-12-25 07:22:26,789 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:22:26,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1484 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:22:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2023-12-25 07:22:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 843. [2023-12-25 07:22:26,874 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) [2023-12-25 07:22:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1159 transitions. [2023-12-25 07:22:26,877 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1159 transitions. Word has length 90 [2023-12-25 07:22:26,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:26,878 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1159 transitions. [2023-12-25 07:22:26,878 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) [2023-12-25 07:22:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1159 transitions. [2023-12-25 07:22:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-25 07:22:26,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:26,881 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] [2023-12-25 07:22:26,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-25 07:22:27,083 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 [2023-12-25 07:22:27,084 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:27,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:27,084 INFO L85 PathProgramCache]: Analyzing trace with hash -641642766, now seen corresponding path program 1 times [2023-12-25 07:22:27,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:27,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785410450] [2023-12-25 07:22:27,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:27,085 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 [2023-12-25 07:22:27,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:27,086 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) [2023-12-25 07:22:27,086 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 [2023-12-25 07:22:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:27,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:27,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-25 07:22:27,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:27,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:27,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785410450] [2023-12-25 07:22:27,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785410450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:27,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:27,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:22:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851060332] [2023-12-25 07:22:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:27,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:27,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:27,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:27,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:22:27,228 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) [2023-12-25 07:22:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:27,566 INFO L93 Difference]: Finished difference Result 1809 states and 2558 transitions. [2023-12-25 07:22:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:22:27,567 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 [2023-12-25 07:22:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:27,571 INFO L225 Difference]: With dead ends: 1809 [2023-12-25 07:22:27,572 INFO L226 Difference]: Without dead ends: 1211 [2023-12-25 07:22:27,573 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 [2023-12-25 07:22:27,573 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 [2023-12-25 07:22:27,574 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] [2023-12-25 07:22:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2023-12-25 07:22:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 958. [2023-12-25 07:22:27,685 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) [2023-12-25 07:22:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1304 transitions. [2023-12-25 07:22:27,688 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1304 transitions. Word has length 91 [2023-12-25 07:22:27,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:27,688 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1304 transitions. [2023-12-25 07:22:27,688 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) [2023-12-25 07:22:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1304 transitions. [2023-12-25 07:22:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-25 07:22:27,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:27,690 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] [2023-12-25 07:22:27,695 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 [2023-12-25 07:22:27,893 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 [2023-12-25 07:22:27,894 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:27,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:27,894 INFO L85 PathProgramCache]: Analyzing trace with hash 808342129, now seen corresponding path program 1 times [2023-12-25 07:22:27,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:27,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284180639] [2023-12-25 07:22:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:27,895 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 [2023-12-25 07:22:27,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:27,896 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) [2023-12-25 07:22:27,920 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 [2023-12-25 07:22:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:27,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:27,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-25 07:22:28,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:28,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:28,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284180639] [2023-12-25 07:22:28,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284180639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:28,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:28,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:22:28,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370231860] [2023-12-25 07:22:28,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:28,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:28,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:28,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:22:28,040 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) [2023-12-25 07:22:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:28,360 INFO L93 Difference]: Finished difference Result 1878 states and 2592 transitions. [2023-12-25 07:22:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:22:28,361 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 [2023-12-25 07:22:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:28,365 INFO L225 Difference]: With dead ends: 1878 [2023-12-25 07:22:28,365 INFO L226 Difference]: Without dead ends: 1068 [2023-12-25 07:22:28,367 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 [2023-12-25 07:22:28,367 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 [2023-12-25 07:22:28,368 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] [2023-12-25 07:22:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-12-25 07:22:28,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 958. [2023-12-25 07:22:28,450 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) [2023-12-25 07:22:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1298 transitions. [2023-12-25 07:22:28,453 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1298 transitions. Word has length 93 [2023-12-25 07:22:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:28,453 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1298 transitions. [2023-12-25 07:22:28,453 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) [2023-12-25 07:22:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1298 transitions. [2023-12-25 07:22:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-25 07:22:28,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:28,455 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] [2023-12-25 07:22:28,472 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 [2023-12-25 07:22:28,657 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 [2023-12-25 07:22:28,658 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:28,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -767862267, now seen corresponding path program 1 times [2023-12-25 07:22:28,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:28,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014219133] [2023-12-25 07:22:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:22:28,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:28,660 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) [2023-12-25 07:22:28,667 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 [2023-12-25 07:22:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:28,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:28,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:28,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:28,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:28,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:28,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014219133] [2023-12-25 07:22:28,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014219133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:28,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:28,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:28,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17150665] [2023-12-25 07:22:28,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:28,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:28,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:28,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:28,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:28,810 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) [2023-12-25 07:22:28,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:28,963 INFO L93 Difference]: Finished difference Result 2315 states and 3152 transitions. [2023-12-25 07:22:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:28,964 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 [2023-12-25 07:22:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:28,969 INFO L225 Difference]: With dead ends: 2315 [2023-12-25 07:22:28,969 INFO L226 Difference]: Without dead ends: 1730 [2023-12-25 07:22:28,970 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 [2023-12-25 07:22:28,971 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 [2023-12-25 07:22:28,971 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] [2023-12-25 07:22:28,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2023-12-25 07:22:29,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1644. [2023-12-25 07:22:29,085 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) [2023-12-25 07:22:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2215 transitions. [2023-12-25 07:22:29,089 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2215 transitions. Word has length 92 [2023-12-25 07:22:29,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:29,090 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2215 transitions. [2023-12-25 07:22:29,090 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) [2023-12-25 07:22:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2215 transitions. [2023-12-25 07:22:29,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 07:22:29,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:29,091 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] [2023-12-25 07:22:29,094 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 (20)] Forceful destruction successful, exit code 0 [2023-12-25 07:22:29,294 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 [2023-12-25 07:22:29,294 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:29,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:29,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1310276840, now seen corresponding path program 1 times [2023-12-25 07:22:29,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:29,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694699209] [2023-12-25 07:22:29,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:29,295 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 [2023-12-25 07:22:29,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:29,297 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) [2023-12-25 07:22:29,326 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 [2023-12-25 07:22:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:29,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:29,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:29,471 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 07:22:29,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-25 07:22:29,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694699209] [2023-12-25 07:22:29,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694699209] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 07:22:29,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 07:22:29,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-25 07:22:29,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359912351] [2023-12-25 07:22:29,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:29,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:29,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:29,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:29,575 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) [2023-12-25 07:22:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:29,826 INFO L93 Difference]: Finished difference Result 3079 states and 4176 transitions. [2023-12-25 07:22:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:29,826 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 [2023-12-25 07:22:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:29,833 INFO L225 Difference]: With dead ends: 3079 [2023-12-25 07:22:29,833 INFO L226 Difference]: Without dead ends: 1866 [2023-12-25 07:22:29,836 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 [2023-12-25 07:22:29,836 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 [2023-12-25 07:22:29,836 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] [2023-12-25 07:22:29,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2023-12-25 07:22:29,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1644. [2023-12-25 07:22:29,974 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) [2023-12-25 07:22:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2210 transitions. [2023-12-25 07:22:29,978 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2210 transitions. Word has length 94 [2023-12-25 07:22:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:29,978 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2210 transitions. [2023-12-25 07:22:29,979 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) [2023-12-25 07:22:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2210 transitions. [2023-12-25 07:22:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 07:22:29,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:29,980 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] [2023-12-25 07:22:29,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 07:22:30,182 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 [2023-12-25 07:22:30,183 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:30,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:30,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1554073978, now seen corresponding path program 1 times [2023-12-25 07:22:30,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:30,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304614047] [2023-12-25 07:22:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:30,184 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 [2023-12-25 07:22:30,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:30,185 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) [2023-12-25 07:22:30,185 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 [2023-12-25 07:22:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:30,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:30,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:30,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:30,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:30,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304614047] [2023-12-25 07:22:30,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304614047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:30,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:30,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424843032] [2023-12-25 07:22:30,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:30,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:30,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:30,324 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) [2023-12-25 07:22:30,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:30,553 INFO L93 Difference]: Finished difference Result 3805 states and 5144 transitions. [2023-12-25 07:22:30,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:30,553 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 [2023-12-25 07:22:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:30,562 INFO L225 Difference]: With dead ends: 3805 [2023-12-25 07:22:30,562 INFO L226 Difference]: Without dead ends: 2653 [2023-12-25 07:22:30,565 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 [2023-12-25 07:22:30,565 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 [2023-12-25 07:22:30,565 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] [2023-12-25 07:22:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2023-12-25 07:22:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2531. [2023-12-25 07:22:30,759 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) [2023-12-25 07:22:30,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 3383 transitions. [2023-12-25 07:22:30,765 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 3383 transitions. Word has length 94 [2023-12-25 07:22:30,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:30,766 INFO L495 AbstractCegarLoop]: Abstraction has 2531 states and 3383 transitions. [2023-12-25 07:22:30,766 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) [2023-12-25 07:22:30,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 3383 transitions. [2023-12-25 07:22:30,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-25 07:22:30,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:30,768 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] [2023-12-25 07:22:30,773 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 [2023-12-25 07:22:30,971 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 [2023-12-25 07:22:30,971 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:30,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1814016471, now seen corresponding path program 1 times [2023-12-25 07:22:30,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:30,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791537943] [2023-12-25 07:22:30,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:30,972 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 [2023-12-25 07:22:30,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:30,973 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) [2023-12-25 07:22:30,984 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 [2023-12-25 07:22:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:31,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:31,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:31,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:31,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791537943] [2023-12-25 07:22:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791537943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:31,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:31,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526022658] [2023-12-25 07:22:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:31,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:22:31,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:31,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:22:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:22:31,092 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) [2023-12-25 07:22:31,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:31,306 INFO L93 Difference]: Finished difference Result 4299 states and 5758 transitions. [2023-12-25 07:22:31,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:22:31,306 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 [2023-12-25 07:22:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:31,314 INFO L225 Difference]: With dead ends: 4299 [2023-12-25 07:22:31,314 INFO L226 Difference]: Without dead ends: 2087 [2023-12-25 07:22:31,318 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 [2023-12-25 07:22:31,319 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 [2023-12-25 07:22:31,319 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] [2023-12-25 07:22:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-12-25 07:22:31,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2087. [2023-12-25 07:22:31,447 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) [2023-12-25 07:22:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 2781 transitions. [2023-12-25 07:22:31,452 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 2781 transitions. Word has length 94 [2023-12-25 07:22:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:31,452 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 2781 transitions. [2023-12-25 07:22:31,462 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) [2023-12-25 07:22:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 2781 transitions. [2023-12-25 07:22:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 07:22:31,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:31,463 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] [2023-12-25 07:22:31,468 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 [2023-12-25 07:22:31,666 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 [2023-12-25 07:22:31,666 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:31,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1868187475, now seen corresponding path program 1 times [2023-12-25 07:22:31,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451498485] [2023-12-25 07:22:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:31,667 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 [2023-12-25 07:22:31,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:31,668 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) [2023-12-25 07:22:31,697 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 [2023-12-25 07:22:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:31,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:31,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-25 07:22:31,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-25 07:22:31,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:31,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451498485] [2023-12-25 07:22:31,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451498485] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 07:22:31,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 07:22:31,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-25 07:22:31,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924245233] [2023-12-25 07:22:31,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:31,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:31,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:31,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:31,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:31,926 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) [2023-12-25 07:22:32,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:32,204 INFO L93 Difference]: Finished difference Result 4280 states and 5806 transitions. [2023-12-25 07:22:32,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:32,205 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 [2023-12-25 07:22:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:32,214 INFO L225 Difference]: With dead ends: 4280 [2023-12-25 07:22:32,214 INFO L226 Difference]: Without dead ends: 2449 [2023-12-25 07:22:32,217 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 [2023-12-25 07:22:32,218 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 [2023-12-25 07:22:32,218 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] [2023-12-25 07:22:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2449 states. [2023-12-25 07:22:32,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2449 to 1900. [2023-12-25 07:22:32,413 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) [2023-12-25 07:22:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2525 transitions. [2023-12-25 07:22:32,418 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2525 transitions. Word has length 97 [2023-12-25 07:22:32,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:32,418 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2525 transitions. [2023-12-25 07:22:32,418 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) [2023-12-25 07:22:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2525 transitions. [2023-12-25 07:22:32,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-25 07:22:32,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:32,419 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] [2023-12-25 07:22:32,421 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 (24)] Ended with exit code 0 [2023-12-25 07:22:32,621 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 [2023-12-25 07:22:32,621 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:32,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash -655751939, now seen corresponding path program 1 times [2023-12-25 07:22:32,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:32,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264104752] [2023-12-25 07:22:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:32,622 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 [2023-12-25 07:22:32,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:32,623 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) [2023-12-25 07:22:32,625 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 [2023-12-25 07:22:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:32,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:32,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-25 07:22:32,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:32,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:32,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264104752] [2023-12-25 07:22:32,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264104752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:32,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:32,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:32,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677398348] [2023-12-25 07:22:32,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:32,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:22:32,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:32,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:22:32,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:22:32,757 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) [2023-12-25 07:22:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:32,963 INFO L93 Difference]: Finished difference Result 3485 states and 4647 transitions. [2023-12-25 07:22:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:22:32,963 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 [2023-12-25 07:22:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:32,969 INFO L225 Difference]: With dead ends: 3485 [2023-12-25 07:22:32,969 INFO L226 Difference]: Without dead ends: 1752 [2023-12-25 07:22:32,972 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 [2023-12-25 07:22:32,972 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 [2023-12-25 07:22:32,973 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] [2023-12-25 07:22:32,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2023-12-25 07:22:33,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2023-12-25 07:22:33,086 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) [2023-12-25 07:22:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2325 transitions. [2023-12-25 07:22:33,090 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2325 transitions. Word has length 97 [2023-12-25 07:22:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:33,090 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2325 transitions. [2023-12-25 07:22:33,091 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) [2023-12-25 07:22:33,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2325 transitions. [2023-12-25 07:22:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-25 07:22:33,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:33,092 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] [2023-12-25 07:22:33,096 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 [2023-12-25 07:22:33,294 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 [2023-12-25 07:22:33,294 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:33,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash -775062168, now seen corresponding path program 1 times [2023-12-25 07:22:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728935013] [2023-12-25 07:22:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:33,295 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 [2023-12-25 07:22:33,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:33,296 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) [2023-12-25 07:22:33,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 07:22:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:33,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:22:33,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:22:33,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:33,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:33,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728935013] [2023-12-25 07:22:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728935013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:33,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:22:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168349692] [2023-12-25 07:22:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:33,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:22:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:33,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:22:33,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:22:33,382 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) [2023-12-25 07:22:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:33,526 INFO L93 Difference]: Finished difference Result 3381 states and 4525 transitions. [2023-12-25 07:22:33,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:22:33,526 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 [2023-12-25 07:22:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:33,532 INFO L225 Difference]: With dead ends: 3381 [2023-12-25 07:22:33,532 INFO L226 Difference]: Without dead ends: 1848 [2023-12-25 07:22:33,535 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 [2023-12-25 07:22:33,535 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 [2023-12-25 07:22:33,536 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] [2023-12-25 07:22:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2023-12-25 07:22:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1824. [2023-12-25 07:22:33,667 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) [2023-12-25 07:22:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2385 transitions. [2023-12-25 07:22:33,671 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2385 transitions. Word has length 102 [2023-12-25 07:22:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:33,671 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 2385 transitions. [2023-12-25 07:22:33,671 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) [2023-12-25 07:22:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2385 transitions. [2023-12-25 07:22:33,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-25 07:22:33,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:33,672 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] [2023-12-25 07:22:33,675 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 [2023-12-25 07:22:33,875 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 [2023-12-25 07:22:33,875 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:33,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:33,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1746973305, now seen corresponding path program 1 times [2023-12-25 07:22:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556011492] [2023-12-25 07:22:33,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:33,876 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 [2023-12-25 07:22:33,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:33,877 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) [2023-12-25 07:22:33,880 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 [2023-12-25 07:22:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:33,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:33,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 07:22:34,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 07:22:34,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:34,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556011492] [2023-12-25 07:22:34,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556011492] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 07:22:34,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 07:22:34,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2023-12-25 07:22:34,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756914395] [2023-12-25 07:22:34,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:34,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:34,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:34,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:34,120 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) [2023-12-25 07:22:34,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:34,381 INFO L93 Difference]: Finished difference Result 3667 states and 4868 transitions. [2023-12-25 07:22:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:34,381 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 [2023-12-25 07:22:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:34,398 INFO L225 Difference]: With dead ends: 3667 [2023-12-25 07:22:34,398 INFO L226 Difference]: Without dead ends: 2026 [2023-12-25 07:22:34,401 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 [2023-12-25 07:22:34,401 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 [2023-12-25 07:22:34,402 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] [2023-12-25 07:22:34,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2023-12-25 07:22:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1803. [2023-12-25 07:22:34,524 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) [2023-12-25 07:22:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2348 transitions. [2023-12-25 07:22:34,527 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2348 transitions. Word has length 105 [2023-12-25 07:22:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:34,527 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2348 transitions. [2023-12-25 07:22:34,528 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) [2023-12-25 07:22:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2348 transitions. [2023-12-25 07:22:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-25 07:22:34,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:34,529 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] [2023-12-25 07:22:34,536 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 [2023-12-25 07:22:34,731 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 [2023-12-25 07:22:34,732 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:34,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:34,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2080577283, now seen corresponding path program 1 times [2023-12-25 07:22:34,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:34,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2121867050] [2023-12-25 07:22:34,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:34,733 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 [2023-12-25 07:22:34,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:34,734 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) [2023-12-25 07:22:34,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-25 07:22:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:34,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 07:22:34,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 07:22:34,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:34,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2121867050] [2023-12-25 07:22:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2121867050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:34,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:34,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 07:22:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853717661] [2023-12-25 07:22:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:22:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:34,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:22:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:22:34,840 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) [2023-12-25 07:22:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:35,127 INFO L93 Difference]: Finished difference Result 2571 states and 3547 transitions. [2023-12-25 07:22:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:22:35,128 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 [2023-12-25 07:22:35,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:35,134 INFO L225 Difference]: With dead ends: 2571 [2023-12-25 07:22:35,135 INFO L226 Difference]: Without dead ends: 2569 [2023-12-25 07:22:35,135 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 [2023-12-25 07:22:35,137 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 [2023-12-25 07:22:35,137 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] [2023-12-25 07:22:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2023-12-25 07:22:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1798. [2023-12-25 07:22:35,265 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) [2023-12-25 07:22:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2343 transitions. [2023-12-25 07:22:35,269 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2343 transitions. Word has length 108 [2023-12-25 07:22:35,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:35,271 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2343 transitions. [2023-12-25 07:22:35,271 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) [2023-12-25 07:22:35,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2343 transitions. [2023-12-25 07:22:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:22:35,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:35,272 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] [2023-12-25 07:22:35,276 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 [2023-12-25 07:22:35,474 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 [2023-12-25 07:22:35,475 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:35,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:35,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1122703765, now seen corresponding path program 1 times [2023-12-25 07:22:35,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:35,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877409216] [2023-12-25 07:22:35,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:35,476 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 [2023-12-25 07:22:35,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:35,477 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) [2023-12-25 07:22:35,509 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 [2023-12-25 07:22:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:35,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:35,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 07:22:35,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 07:22:35,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:35,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877409216] [2023-12-25 07:22:35,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877409216] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-25 07:22:35,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 07:22:35,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2023-12-25 07:22:35,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11590507] [2023-12-25 07:22:35,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:35,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:35,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:22:35,792 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) [2023-12-25 07:22:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:36,046 INFO L93 Difference]: Finished difference Result 3379 states and 4455 transitions. [2023-12-25 07:22:36,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:36,046 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 [2023-12-25 07:22:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:36,051 INFO L225 Difference]: With dead ends: 3379 [2023-12-25 07:22:36,051 INFO L226 Difference]: Without dead ends: 1803 [2023-12-25 07:22:36,054 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 [2023-12-25 07:22:36,055 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 [2023-12-25 07:22:36,055 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] [2023-12-25 07:22:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2023-12-25 07:22:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1596. [2023-12-25 07:22:36,168 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) [2023-12-25 07:22:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2069 transitions. [2023-12-25 07:22:36,171 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2069 transitions. Word has length 111 [2023-12-25 07:22:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:36,173 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 2069 transitions. [2023-12-25 07:22:36,173 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) [2023-12-25 07:22:36,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2069 transitions. [2023-12-25 07:22:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-12-25 07:22:36,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:36,176 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] [2023-12-25 07:22:36,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-25 07:22:36,378 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 [2023-12-25 07:22:36,379 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:36,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:36,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2015191633, now seen corresponding path program 1 times [2023-12-25 07:22:36,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:36,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191439197] [2023-12-25 07:22:36,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:36,380 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 [2023-12-25 07:22:36,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:36,381 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) [2023-12-25 07:22:36,408 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 [2023-12-25 07:22:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:36,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:22:36,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 72 proven. 10 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:22:36,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-25 07:22:37,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:37,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191439197] [2023-12-25 07:22:37,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191439197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:37,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:37,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:22:37,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151510302] [2023-12-25 07:22:37,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:37,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:22:37,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:22:37,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:22:37,047 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) [2023-12-25 07:22:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:38,187 INFO L93 Difference]: Finished difference Result 3422 states and 4501 transitions. [2023-12-25 07:22:38,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 07:22:38,187 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 [2023-12-25 07:22:38,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:38,192 INFO L225 Difference]: With dead ends: 3422 [2023-12-25 07:22:38,193 INFO L226 Difference]: Without dead ends: 2056 [2023-12-25 07:22:38,195 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 [2023-12-25 07:22:38,196 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 [2023-12-25 07:22:38,196 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] [2023-12-25 07:22:38,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2023-12-25 07:22:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 1938. [2023-12-25 07:22:38,374 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) [2023-12-25 07:22:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2505 transitions. [2023-12-25 07:22:38,378 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2505 transitions. Word has length 167 [2023-12-25 07:22:38,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:38,378 INFO L495 AbstractCegarLoop]: Abstraction has 1938 states and 2505 transitions. [2023-12-25 07:22:38,379 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) [2023-12-25 07:22:38,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2505 transitions. [2023-12-25 07:22:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-25 07:22:38,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:38,381 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] [2023-12-25 07:22:38,384 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 (30)] Ended with exit code 0 [2023-12-25 07:22:38,584 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 [2023-12-25 07:22:38,584 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:38,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash -427350096, now seen corresponding path program 1 times [2023-12-25 07:22:38,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:38,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967717258] [2023-12-25 07:22:38,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:38,585 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 [2023-12-25 07:22:38,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:38,586 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) [2023-12-25 07:22:38,587 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 [2023-12-25 07:22:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:38,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:22:38,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 72 proven. 13 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:22:39,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-25 07:22:39,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:39,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967717258] [2023-12-25 07:22:39,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967717258] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:39,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:39,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:22:39,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736974227] [2023-12-25 07:22:39,241 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:39,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:22:39,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:39,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:22:39,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:22:39,242 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) [2023-12-25 07:22:40,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:40,449 INFO L93 Difference]: Finished difference Result 3719 states and 4874 transitions. [2023-12-25 07:22:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 07:22:40,449 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 [2023-12-25 07:22:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:40,455 INFO L225 Difference]: With dead ends: 3719 [2023-12-25 07:22:40,455 INFO L226 Difference]: Without dead ends: 2022 [2023-12-25 07:22:40,458 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 [2023-12-25 07:22:40,458 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1185 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:22:40,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 2899 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:22:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2023-12-25 07:22:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1966. [2023-12-25 07:22:40,668 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) [2023-12-25 07:22:40,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2540 transitions. [2023-12-25 07:22:40,672 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2540 transitions. Word has length 168 [2023-12-25 07:22:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:40,673 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2540 transitions. [2023-12-25 07:22:40,673 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) [2023-12-25 07:22:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2540 transitions. [2023-12-25 07:22:40,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-25 07:22:40,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:40,676 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] [2023-12-25 07:22:40,679 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 [2023-12-25 07:22:40,879 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 [2023-12-25 07:22:40,879 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:40,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1753162762, now seen corresponding path program 1 times [2023-12-25 07:22:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:40,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210897965] [2023-12-25 07:22:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:40,880 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 [2023-12-25 07:22:40,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:40,881 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) [2023-12-25 07:22:40,883 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 [2023-12-25 07:22:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:41,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:41,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:22:41,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-25 07:22:41,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:41,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210897965] [2023-12-25 07:22:41,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210897965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:41,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:41,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-25 07:22:41,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911874888] [2023-12-25 07:22:41,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:41,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:22:41,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:22:41,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:22:41,275 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) [2023-12-25 07:22:41,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:41,841 INFO L93 Difference]: Finished difference Result 3864 states and 5063 transitions. [2023-12-25 07:22:41,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 07:22:41,842 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 [2023-12-25 07:22:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:41,849 INFO L225 Difference]: With dead ends: 3864 [2023-12-25 07:22:41,849 INFO L226 Difference]: Without dead ends: 2139 [2023-12-25 07:22:41,852 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 [2023-12-25 07:22:41,852 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 [2023-12-25 07:22:41,852 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] [2023-12-25 07:22:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-25 07:22:42,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2119. [2023-12-25 07:22:42,107 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) [2023-12-25 07:22:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2119 states to 2119 states and 2731 transitions. [2023-12-25 07:22:42,112 INFO L78 Accepts]: Start accepts. Automaton has 2119 states and 2731 transitions. Word has length 169 [2023-12-25 07:22:42,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:42,112 INFO L495 AbstractCegarLoop]: Abstraction has 2119 states and 2731 transitions. [2023-12-25 07:22:42,112 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) [2023-12-25 07:22:42,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2119 states and 2731 transitions. [2023-12-25 07:22:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-25 07:22:42,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:42,115 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] [2023-12-25 07:22:42,118 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 (32)] Ended with exit code 0 [2023-12-25 07:22:42,318 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 [2023-12-25 07:22:42,318 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:42,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:42,318 INFO L85 PathProgramCache]: Analyzing trace with hash 200249043, now seen corresponding path program 1 times [2023-12-25 07:22:42,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:42,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227274108] [2023-12-25 07:22:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:42,319 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 [2023-12-25 07:22:42,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:42,321 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) [2023-12-25 07:22:42,348 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 [2023-12-25 07:22:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:42,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:22:42,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 62 proven. 21 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:22:42,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-25 07:22:42,710 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227274108] [2023-12-25 07:22:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227274108] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:42,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:42,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-12-25 07:22:42,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567353625] [2023-12-25 07:22:42,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:42,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-25 07:22:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-25 07:22:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:22:42,712 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) [2023-12-25 07:22:43,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:43,839 INFO L93 Difference]: Finished difference Result 4484 states and 5862 transitions. [2023-12-25 07:22:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:22:43,840 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 [2023-12-25 07:22:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:43,847 INFO L225 Difference]: With dead ends: 4484 [2023-12-25 07:22:43,847 INFO L226 Difference]: Without dead ends: 2606 [2023-12-25 07:22:43,850 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 [2023-12-25 07:22:43,850 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1196 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:22:43,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1890 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:22:43,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2023-12-25 07:22:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2584. [2023-12-25 07:22:44,176 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) [2023-12-25 07:22:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3326 transitions. [2023-12-25 07:22:44,181 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3326 transitions. Word has length 170 [2023-12-25 07:22:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:44,181 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3326 transitions. [2023-12-25 07:22:44,181 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) [2023-12-25 07:22:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3326 transitions. [2023-12-25 07:22:44,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-12-25 07:22:44,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:44,185 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] [2023-12-25 07:22:44,187 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 [2023-12-25 07:22:44,387 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 [2023-12-25 07:22:44,388 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:44,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash 184449960, now seen corresponding path program 1 times [2023-12-25 07:22:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:44,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738777964] [2023-12-25 07:22:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:44,389 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 [2023-12-25 07:22:44,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:44,390 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) [2023-12-25 07:22:44,417 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 [2023-12-25 07:22:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:44,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:44,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 07:22:44,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-25 07:22:44,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738777964] [2023-12-25 07:22:44,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738777964] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:44,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:44,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-12-25 07:22:44,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517662192] [2023-12-25 07:22:44,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:44,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 07:22:44,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 07:22:44,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 07:22:44,724 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) [2023-12-25 07:22:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:45,251 INFO L93 Difference]: Finished difference Result 5348 states and 7021 transitions. [2023-12-25 07:22:45,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:22:45,252 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 [2023-12-25 07:22:45,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:45,259 INFO L225 Difference]: With dead ends: 5348 [2023-12-25 07:22:45,259 INFO L226 Difference]: Without dead ends: 2960 [2023-12-25 07:22:45,268 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 [2023-12-25 07:22:45,269 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 [2023-12-25 07:22:45,269 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] [2023-12-25 07:22:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2023-12-25 07:22:45,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2584. [2023-12-25 07:22:45,605 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) [2023-12-25 07:22:45,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3324 transitions. [2023-12-25 07:22:45,610 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3324 transitions. Word has length 174 [2023-12-25 07:22:45,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:45,610 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 3324 transitions. [2023-12-25 07:22:45,611 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) [2023-12-25 07:22:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3324 transitions. [2023-12-25 07:22:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-25 07:22:45,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:45,615 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] [2023-12-25 07:22:45,617 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 (34)] Ended with exit code 0 [2023-12-25 07:22:45,817 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 [2023-12-25 07:22:45,817 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:45,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:45,818 INFO L85 PathProgramCache]: Analyzing trace with hash -653532666, now seen corresponding path program 1 times [2023-12-25 07:22:45,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:45,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91227833] [2023-12-25 07:22:45,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:45,819 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 [2023-12-25 07:22:45,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:45,820 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) [2023-12-25 07:22:45,847 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 [2023-12-25 07:22:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:45,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:45,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-25 07:22:45,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:45,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:45,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91227833] [2023-12-25 07:22:45,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91227833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:45,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:45,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:22:45,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158679085] [2023-12-25 07:22:45,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:45,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:45,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:22:45,997 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) [2023-12-25 07:22:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:46,910 INFO L93 Difference]: Finished difference Result 8148 states and 10869 transitions. [2023-12-25 07:22:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:22:46,911 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 [2023-12-25 07:22:46,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:46,923 INFO L225 Difference]: With dead ends: 8148 [2023-12-25 07:22:46,923 INFO L226 Difference]: Without dead ends: 5816 [2023-12-25 07:22:46,927 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 [2023-12-25 07:22:46,927 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 [2023-12-25 07:22:46,927 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] [2023-12-25 07:22:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5816 states. [2023-12-25 07:22:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5816 to 3960. [2023-12-25 07:22:47,448 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) [2023-12-25 07:22:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 5130 transitions. [2023-12-25 07:22:47,456 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 5130 transitions. Word has length 173 [2023-12-25 07:22:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:47,456 INFO L495 AbstractCegarLoop]: Abstraction has 3960 states and 5130 transitions. [2023-12-25 07:22:47,456 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) [2023-12-25 07:22:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 5130 transitions. [2023-12-25 07:22:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 07:22:47,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:47,460 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] [2023-12-25 07:22:47,463 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 [2023-12-25 07:22:47,662 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 [2023-12-25 07:22:47,663 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:47,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:47,663 INFO L85 PathProgramCache]: Analyzing trace with hash -995586258, now seen corresponding path program 1 times [2023-12-25 07:22:47,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:47,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701457642] [2023-12-25 07:22:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:47,664 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 [2023-12-25 07:22:47,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:47,666 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) [2023-12-25 07:22:47,667 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 [2023-12-25 07:22:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:47,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:22:47,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 61 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 07:22:47,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:48,027 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 23 proven. 22 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-12-25 07:22:48,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:48,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701457642] [2023-12-25 07:22:48,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701457642] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:48,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:48,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:22:48,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715372765] [2023-12-25 07:22:48,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:48,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:22:48,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:48,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:22:48,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:22:48,029 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) [2023-12-25 07:22:49,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:49,776 INFO L93 Difference]: Finished difference Result 11623 states and 15388 transitions. [2023-12-25 07:22:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:22:49,776 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 [2023-12-25 07:22:49,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:49,835 INFO L225 Difference]: With dead ends: 11623 [2023-12-25 07:22:49,836 INFO L226 Difference]: Without dead ends: 7915 [2023-12-25 07:22:49,844 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 [2023-12-25 07:22:49,845 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 766 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2023-12-25 07:22:49,845 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] [2023-12-25 07:22:49,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2023-12-25 07:22:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6724. [2023-12-25 07:22:50,801 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) [2023-12-25 07:22:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 8753 transitions. [2023-12-25 07:22:50,816 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 8753 transitions. Word has length 179 [2023-12-25 07:22:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:50,817 INFO L495 AbstractCegarLoop]: Abstraction has 6724 states and 8753 transitions. [2023-12-25 07:22:50,817 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) [2023-12-25 07:22:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 8753 transitions. [2023-12-25 07:22:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-25 07:22:50,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:50,821 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] [2023-12-25 07:22:50,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-25 07:22:51,024 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 [2023-12-25 07:22:51,024 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:51,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash -744422450, now seen corresponding path program 1 times [2023-12-25 07:22:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617438406] [2023-12-25 07:22:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:51,025 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 [2023-12-25 07:22:51,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:51,026 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) [2023-12-25 07:22:51,028 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 [2023-12-25 07:22:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:51,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:22:51,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:51,455 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 82 proven. 11 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 07:22:51,455 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-25 07:22:51,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:51,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617438406] [2023-12-25 07:22:51,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617438406] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:51,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:51,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:22:51,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084471210] [2023-12-25 07:22:51,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:51,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:22:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:51,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:22:51,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:22:51,650 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) [2023-12-25 07:22:53,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:53,831 INFO L93 Difference]: Finished difference Result 14646 states and 19139 transitions. [2023-12-25 07:22:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:22:53,832 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 [2023-12-25 07:22:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:53,854 INFO L225 Difference]: With dead ends: 14646 [2023-12-25 07:22:53,854 INFO L226 Difference]: Without dead ends: 8174 [2023-12-25 07:22:53,867 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 [2023-12-25 07:22:53,868 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, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:22:53,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 2269 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 07:22:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2023-12-25 07:22:54,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 7529. [2023-12-25 07:22:54,972 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) [2023-12-25 07:22:54,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 9797 transitions. [2023-12-25 07:22:54,990 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 9797 transitions. Word has length 181 [2023-12-25 07:22:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:54,991 INFO L495 AbstractCegarLoop]: Abstraction has 7529 states and 9797 transitions. [2023-12-25 07:22:54,991 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) [2023-12-25 07:22:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 9797 transitions. [2023-12-25 07:22:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-12-25 07:22:54,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:54,996 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] [2023-12-25 07:22:54,999 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 (37)] Ended with exit code 0 [2023-12-25 07:22:55,199 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 [2023-12-25 07:22:55,199 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:55,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:55,200 INFO L85 PathProgramCache]: Analyzing trace with hash -76040749, now seen corresponding path program 1 times [2023-12-25 07:22:55,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:55,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038957205] [2023-12-25 07:22:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:55,200 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 [2023-12-25 07:22:55,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:55,201 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) [2023-12-25 07:22:55,202 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 [2023-12-25 07:22:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:55,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:22:55,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 79 proven. 12 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 07:22:55,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:22:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-12-25 07:22:55,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:55,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038957205] [2023-12-25 07:22:55,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038957205] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:22:55,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:22:55,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:22:55,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432640246] [2023-12-25 07:22:55,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:22:55,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:22:55,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:55,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:22:55,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:22:55,908 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) [2023-12-25 07:22:58,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:22:58,143 INFO L93 Difference]: Finished difference Result 14973 states and 19562 transitions. [2023-12-25 07:22:58,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 07:22:58,144 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 [2023-12-25 07:22:58,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:22:58,165 INFO L225 Difference]: With dead ends: 14973 [2023-12-25 07:22:58,165 INFO L226 Difference]: Without dead ends: 7696 [2023-12-25 07:22:58,176 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 [2023-12-25 07:22:58,176 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1339 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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 [2023-12-25 07:22:58,176 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] [2023-12-25 07:22:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7696 states. [2023-12-25 07:22:59,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7696 to 7558. [2023-12-25 07:22:59,261 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) [2023-12-25 07:22:59,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7558 states to 7558 states and 9834 transitions. [2023-12-25 07:22:59,276 INFO L78 Accepts]: Start accepts. Automaton has 7558 states and 9834 transitions. Word has length 182 [2023-12-25 07:22:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:22:59,276 INFO L495 AbstractCegarLoop]: Abstraction has 7558 states and 9834 transitions. [2023-12-25 07:22:59,276 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) [2023-12-25 07:22:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7558 states and 9834 transitions. [2023-12-25 07:22:59,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-25 07:22:59,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:22:59,281 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] [2023-12-25 07:22:59,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-25 07:22:59,483 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 [2023-12-25 07:22:59,484 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:22:59,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:22:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash 92879876, now seen corresponding path program 1 times [2023-12-25 07:22:59,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:22:59,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615679826] [2023-12-25 07:22:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:22:59,485 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 [2023-12-25 07:22:59,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:22:59,486 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) [2023-12-25 07:22:59,489 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 [2023-12-25 07:22:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:22:59,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:22:59,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:22:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 07:22:59,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:22:59,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:22:59,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615679826] [2023-12-25 07:22:59,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615679826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:22:59,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:22:59,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:22:59,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560172709] [2023-12-25 07:22:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:22:59,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:22:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:22:59,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:22:59,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:22:59,695 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) [2023-12-25 07:23:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:01,324 INFO L93 Difference]: Finished difference Result 16548 states and 22107 transitions. [2023-12-25 07:23:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:23:01,325 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 [2023-12-25 07:23:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:01,344 INFO L225 Difference]: With dead ends: 16548 [2023-12-25 07:23:01,344 INFO L226 Difference]: Without dead ends: 9242 [2023-12-25 07:23:01,352 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 [2023-12-25 07:23:01,353 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 [2023-12-25 07:23:01,353 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] [2023-12-25 07:23:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9242 states. [2023-12-25 07:23:02,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9242 to 7546. [2023-12-25 07:23:02,761 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) [2023-12-25 07:23:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 9798 transitions. [2023-12-25 07:23:02,783 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 9798 transitions. Word has length 181 [2023-12-25 07:23:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:02,784 INFO L495 AbstractCegarLoop]: Abstraction has 7546 states and 9798 transitions. [2023-12-25 07:23:02,784 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) [2023-12-25 07:23:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 9798 transitions. [2023-12-25 07:23:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-25 07:23:02,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:02,790 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] [2023-12-25 07:23:02,808 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 (39)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:02,993 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 [2023-12-25 07:23:02,994 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:02,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:02,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1256632450, now seen corresponding path program 1 times [2023-12-25 07:23:02,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:02,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496842096] [2023-12-25 07:23:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:02,995 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 [2023-12-25 07:23:02,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:02,996 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) [2023-12-25 07:23:02,997 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 [2023-12-25 07:23:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:03,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:23:03,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-25 07:23:03,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:23:03,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:03,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496842096] [2023-12-25 07:23:03,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496842096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:23:03,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:23:03,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:23:03,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025711075] [2023-12-25 07:23:03,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:23:03,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:23:03,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:03,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:23:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:23:03,175 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) [2023-12-25 07:23:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:04,716 INFO L93 Difference]: Finished difference Result 15608 states and 20517 transitions. [2023-12-25 07:23:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:23:04,716 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 [2023-12-25 07:23:04,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:04,742 INFO L225 Difference]: With dead ends: 15608 [2023-12-25 07:23:04,742 INFO L226 Difference]: Without dead ends: 8286 [2023-12-25 07:23:04,751 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 [2023-12-25 07:23:04,751 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 [2023-12-25 07:23:04,751 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] [2023-12-25 07:23:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2023-12-25 07:23:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 7546. [2023-12-25 07:23:05,916 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) [2023-12-25 07:23:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7546 states to 7546 states and 9781 transitions. [2023-12-25 07:23:05,933 INFO L78 Accepts]: Start accepts. Automaton has 7546 states and 9781 transitions. Word has length 183 [2023-12-25 07:23:05,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:05,933 INFO L495 AbstractCegarLoop]: Abstraction has 7546 states and 9781 transitions. [2023-12-25 07:23:05,933 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) [2023-12-25 07:23:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 7546 states and 9781 transitions. [2023-12-25 07:23:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-25 07:23:05,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:05,937 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] [2023-12-25 07:23:05,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:06,140 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 [2023-12-25 07:23:06,140 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:06,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1905601892, now seen corresponding path program 1 times [2023-12-25 07:23:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128325168] [2023-12-25 07:23:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:06,141 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 [2023-12-25 07:23:06,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:06,142 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) [2023-12-25 07:23:06,144 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 [2023-12-25 07:23:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:06,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:06,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 39 proven. 58 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-25 07:23:06,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-25 07:23:06,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:06,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128325168] [2023-12-25 07:23:06,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128325168] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:06,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:06,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:23:06,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328305767] [2023-12-25 07:23:06,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:06,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:06,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:06,550 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) [2023-12-25 07:23:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:08,179 INFO L93 Difference]: Finished difference Result 15181 states and 19633 transitions. [2023-12-25 07:23:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:23:08,180 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 [2023-12-25 07:23:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:08,198 INFO L225 Difference]: With dead ends: 15181 [2023-12-25 07:23:08,198 INFO L226 Difference]: Without dead ends: 7887 [2023-12-25 07:23:08,205 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 [2023-12-25 07:23:08,206 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 [2023-12-25 07:23:08,206 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] [2023-12-25 07:23:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7887 states. [2023-12-25 07:23:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7887 to 5910. [2023-12-25 07:23:09,099 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) [2023-12-25 07:23:09,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7607 transitions. [2023-12-25 07:23:09,112 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7607 transitions. Word has length 184 [2023-12-25 07:23:09,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:09,113 INFO L495 AbstractCegarLoop]: Abstraction has 5910 states and 7607 transitions. [2023-12-25 07:23:09,113 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) [2023-12-25 07:23:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7607 transitions. [2023-12-25 07:23:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-25 07:23:09,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:09,115 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] [2023-12-25 07:23:09,118 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 [2023-12-25 07:23:09,318 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 [2023-12-25 07:23:09,318 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:09,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:09,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2041359211, now seen corresponding path program 1 times [2023-12-25 07:23:09,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:09,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111233313] [2023-12-25 07:23:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:09,319 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 [2023-12-25 07:23:09,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:09,320 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) [2023-12-25 07:23:09,321 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 [2023-12-25 07:23:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:09,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:23:09,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:23:09,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:23:09,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:09,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111233313] [2023-12-25 07:23:09,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111233313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:23:09,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:23:09,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:23:09,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902738566] [2023-12-25 07:23:09,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:23:09,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:23:09,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:23:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:23:09,500 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) [2023-12-25 07:23:10,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:10,537 INFO L93 Difference]: Finished difference Result 12908 states and 16720 transitions. [2023-12-25 07:23:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:23:10,538 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 [2023-12-25 07:23:10,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:10,555 INFO L225 Difference]: With dead ends: 12908 [2023-12-25 07:23:10,555 INFO L226 Difference]: Without dead ends: 7250 [2023-12-25 07:23:10,563 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 [2023-12-25 07:23:10,564 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 [2023-12-25 07:23:10,564 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] [2023-12-25 07:23:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7250 states. [2023-12-25 07:23:11,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7250 to 6955. [2023-12-25 07:23:11,607 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) [2023-12-25 07:23:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 8957 transitions. [2023-12-25 07:23:11,621 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 8957 transitions. Word has length 183 [2023-12-25 07:23:11,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:11,622 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 8957 transitions. [2023-12-25 07:23:11,622 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) [2023-12-25 07:23:11,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 8957 transitions. [2023-12-25 07:23:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:23:11,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:11,625 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] [2023-12-25 07:23:11,628 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 [2023-12-25 07:23:11,825 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 [2023-12-25 07:23:11,826 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:11,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1931282526, now seen corresponding path program 1 times [2023-12-25 07:23:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:11,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820141052] [2023-12-25 07:23:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:11,827 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 [2023-12-25 07:23:11,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:11,828 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) [2023-12-25 07:23:11,828 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 (43)] Waiting until timeout for monitored process [2023-12-25 07:23:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:11,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:11,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 07:23:12,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 19 proven. 18 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-25 07:23:12,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:12,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820141052] [2023-12-25 07:23:12,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820141052] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:12,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:12,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:23:12,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914149956] [2023-12-25 07:23:12,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:12,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:12,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:12,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:12,210 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) [2023-12-25 07:23:14,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:14,149 INFO L93 Difference]: Finished difference Result 16193 states and 20926 transitions. [2023-12-25 07:23:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:23:14,150 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 [2023-12-25 07:23:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:14,170 INFO L225 Difference]: With dead ends: 16193 [2023-12-25 07:23:14,171 INFO L226 Difference]: Without dead ends: 9490 [2023-12-25 07:23:14,177 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 [2023-12-25 07:23:14,178 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:14,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2191 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:23:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9490 states. [2023-12-25 07:23:15,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9490 to 6955. [2023-12-25 07:23:15,338 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) [2023-12-25 07:23:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 8931 transitions. [2023-12-25 07:23:15,351 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 8931 transitions. Word has length 187 [2023-12-25 07:23:15,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:15,351 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 8931 transitions. [2023-12-25 07:23:15,352 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) [2023-12-25 07:23:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 8931 transitions. [2023-12-25 07:23:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:23:15,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:15,354 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] [2023-12-25 07:23:15,357 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 (43)] Ended with exit code 0 [2023-12-25 07:23:15,555 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 [2023-12-25 07:23:15,555 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:15,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash 760852969, now seen corresponding path program 1 times [2023-12-25 07:23:15,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:15,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087921569] [2023-12-25 07:23:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:15,556 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 [2023-12-25 07:23:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:15,557 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) [2023-12-25 07:23:15,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-25 07:23:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:15,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:15,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 45 proven. 62 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-25 07:23:15,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:15,937 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-25 07:23:15,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:15,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087921569] [2023-12-25 07:23:15,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087921569] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:15,937 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:15,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:23:15,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914184582] [2023-12-25 07:23:15,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:15,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:15,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:15,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:15,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:15,939 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) [2023-12-25 07:23:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:18,192 INFO L93 Difference]: Finished difference Result 15676 states and 20685 transitions. [2023-12-25 07:23:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:23:18,192 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 [2023-12-25 07:23:18,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:18,215 INFO L225 Difference]: With dead ends: 15676 [2023-12-25 07:23:18,216 INFO L226 Difference]: Without dead ends: 8973 [2023-12-25 07:23:18,223 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 [2023-12-25 07:23:18,224 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 [2023-12-25 07:23:18,224 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] [2023-12-25 07:23:18,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2023-12-25 07:23:19,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 6495. [2023-12-25 07:23:19,333 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) [2023-12-25 07:23:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 8274 transitions. [2023-12-25 07:23:19,344 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 8274 transitions. Word has length 187 [2023-12-25 07:23:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:19,344 INFO L495 AbstractCegarLoop]: Abstraction has 6495 states and 8274 transitions. [2023-12-25 07:23:19,344 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) [2023-12-25 07:23:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 8274 transitions. [2023-12-25 07:23:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-25 07:23:19,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:19,347 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] [2023-12-25 07:23:19,350 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 (44)] Ended with exit code 0 [2023-12-25 07:23:19,547 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 [2023-12-25 07:23:19,548 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:19,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:19,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1375352644, now seen corresponding path program 1 times [2023-12-25 07:23:19,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:19,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060262257] [2023-12-25 07:23:19,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:19,549 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 [2023-12-25 07:23:19,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:19,550 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) [2023-12-25 07:23:19,550 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 [2023-12-25 07:23:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:19,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:19,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 36 proven. 80 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 07:23:19,803 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 22 proven. 21 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-25 07:23:19,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060262257] [2023-12-25 07:23:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060262257] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:19,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:23:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355194703] [2023-12-25 07:23:19,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:19,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:19,944 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) [2023-12-25 07:23:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:21,794 INFO L93 Difference]: Finished difference Result 13878 states and 17883 transitions. [2023-12-25 07:23:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:23:21,794 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 [2023-12-25 07:23:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:21,808 INFO L225 Difference]: With dead ends: 13878 [2023-12-25 07:23:21,808 INFO L226 Difference]: Without dead ends: 7635 [2023-12-25 07:23:21,814 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 [2023-12-25 07:23:21,815 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 [2023-12-25 07:23:21,815 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] [2023-12-25 07:23:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2023-12-25 07:23:22,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6495. [2023-12-25 07:23:22,847 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) [2023-12-25 07:23:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 8261 transitions. [2023-12-25 07:23:22,859 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 8261 transitions. Word has length 190 [2023-12-25 07:23:22,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:22,859 INFO L495 AbstractCegarLoop]: Abstraction has 6495 states and 8261 transitions. [2023-12-25 07:23:22,859 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) [2023-12-25 07:23:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 8261 transitions. [2023-12-25 07:23:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:23:22,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:22,862 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] [2023-12-25 07:23:22,867 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 [2023-12-25 07:23:23,064 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 [2023-12-25 07:23:23,065 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:23,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:23,065 INFO L85 PathProgramCache]: Analyzing trace with hash -419830590, now seen corresponding path program 1 times [2023-12-25 07:23:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509029023] [2023-12-25 07:23:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:23,066 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 [2023-12-25 07:23:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:23,067 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) [2023-12-25 07:23:23,068 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 [2023-12-25 07:23:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:23,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:23:23,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-25 07:23:23,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:23:23,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509029023] [2023-12-25 07:23:23,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509029023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:23:23,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:23:23,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:23:23,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791697320] [2023-12-25 07:23:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:23:23,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:23:23,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:23:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:23:23,253 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) [2023-12-25 07:23:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:25,274 INFO L93 Difference]: Finished difference Result 16979 states and 22035 transitions. [2023-12-25 07:23:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:23:25,274 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 [2023-12-25 07:23:25,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:25,297 INFO L225 Difference]: With dead ends: 16979 [2023-12-25 07:23:25,297 INFO L226 Difference]: Without dead ends: 10736 [2023-12-25 07:23:25,304 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 [2023-12-25 07:23:25,305 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 [2023-12-25 07:23:25,305 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] [2023-12-25 07:23:25,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2023-12-25 07:23:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 8154. [2023-12-25 07:23:26,788 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) [2023-12-25 07:23:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8154 states to 8154 states and 10372 transitions. [2023-12-25 07:23:26,804 INFO L78 Accepts]: Start accepts. Automaton has 8154 states and 10372 transitions. Word has length 192 [2023-12-25 07:23:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:26,804 INFO L495 AbstractCegarLoop]: Abstraction has 8154 states and 10372 transitions. [2023-12-25 07:23:26,804 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) [2023-12-25 07:23:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 8154 states and 10372 transitions. [2023-12-25 07:23:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-25 07:23:26,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:26,809 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] [2023-12-25 07:23:26,812 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 [2023-12-25 07:23:27,009 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 [2023-12-25 07:23:27,009 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:27,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash 872115141, now seen corresponding path program 1 times [2023-12-25 07:23:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:27,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895438544] [2023-12-25 07:23:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:27,010 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 [2023-12-25 07:23:27,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:27,012 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) [2023-12-25 07:23:27,018 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 (47)] Waiting until timeout for monitored process [2023-12-25 07:23:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:27,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:27,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:27,286 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 99 proven. 22 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:23:27,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-25 07:23:27,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:27,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895438544] [2023-12-25 07:23:27,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895438544] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:27,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:27,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-25 07:23:27,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445343220] [2023-12-25 07:23:27,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:27,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:27,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:27,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:27,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:27,425 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) [2023-12-25 07:23:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:29,575 INFO L93 Difference]: Finished difference Result 17610 states and 22458 transitions. [2023-12-25 07:23:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 07:23:29,576 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 195 [2023-12-25 07:23:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:29,599 INFO L225 Difference]: With dead ends: 17610 [2023-12-25 07:23:29,599 INFO L226 Difference]: Without dead ends: 9708 [2023-12-25 07:23:29,609 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 [2023-12-25 07:23:29,610 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 488 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:29,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1837 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:23:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9708 states. [2023-12-25 07:23:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9708 to 8878. [2023-12-25 07:23:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8878 states, 6570 states have (on average 1.2733637747336377) internal successors, (8366), 6632 states have internal predecessors, (8366), 1460 states have call successors, (1460), 847 states have call predecessors, (1460), 847 states have return successors, (1460), 1398 states have call predecessors, (1460), 1460 states have call successors, (1460) [2023-12-25 07:23:31,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8878 states to 8878 states and 11286 transitions. [2023-12-25 07:23:31,195 INFO L78 Accepts]: Start accepts. Automaton has 8878 states and 11286 transitions. Word has length 195 [2023-12-25 07:23:31,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:31,196 INFO L495 AbstractCegarLoop]: Abstraction has 8878 states and 11286 transitions. [2023-12-25 07:23:31,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-12-25 07:23:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 8878 states and 11286 transitions. [2023-12-25 07:23:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-25 07:23:31,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:31,199 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:23:31,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:31,401 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 [2023-12-25 07:23:31,402 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:31,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash 40336884, now seen corresponding path program 1 times [2023-12-25 07:23:31,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:31,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598595218] [2023-12-25 07:23:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:31,403 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 [2023-12-25 07:23:31,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:31,404 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-25 07:23:31,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-25 07:23:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:31,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:31,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 38 proven. 89 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:23:31,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 22 proven. 20 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-12-25 07:23:31,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598595218] [2023-12-25 07:23:31,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1598595218] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:31,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:31,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:23:31,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159697104] [2023-12-25 07:23:31,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:31,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:23:31,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:23:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:23:31,809 INFO L87 Difference]: Start difference. First operand 8878 states and 11286 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (41), 4 states have call predecessors, (41), 6 states have return successors, (39), 5 states have call predecessors, (39), 4 states have call successors, (39) [2023-12-25 07:23:35,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:35,313 INFO L93 Difference]: Finished difference Result 23426 states and 30254 transitions. [2023-12-25 07:23:35,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:23:35,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (41), 4 states have call predecessors, (41), 6 states have return successors, (39), 5 states have call predecessors, (39), 4 states have call successors, (39) Word has length 198 [2023-12-25 07:23:35,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:35,347 INFO L225 Difference]: With dead ends: 23426 [2023-12-25 07:23:35,347 INFO L226 Difference]: Without dead ends: 14800 [2023-12-25 07:23:35,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2023-12-25 07:23:35,361 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 902 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:35,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 2979 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:23:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14800 states. [2023-12-25 07:23:37,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 12678. [2023-12-25 07:23:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12678 states, 9326 states have (on average 1.2724640789191508) internal successors, (11867), 9418 states have internal predecessors, (11867), 2135 states have call successors, (2135), 1216 states have call predecessors, (2135), 1216 states have return successors, (2135), 2043 states have call predecessors, (2135), 2135 states have call successors, (2135) [2023-12-25 07:23:37,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12678 states to 12678 states and 16137 transitions. [2023-12-25 07:23:37,781 INFO L78 Accepts]: Start accepts. Automaton has 12678 states and 16137 transitions. Word has length 198 [2023-12-25 07:23:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:37,782 INFO L495 AbstractCegarLoop]: Abstraction has 12678 states and 16137 transitions. [2023-12-25 07:23:37,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 9 states have internal predecessors, (161), 4 states have call successors, (41), 4 states have call predecessors, (41), 6 states have return successors, (39), 5 states have call predecessors, (39), 4 states have call successors, (39) [2023-12-25 07:23:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 12678 states and 16137 transitions. [2023-12-25 07:23:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-12-25 07:23:37,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:37,786 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:23:37,792 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 (48)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:37,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:23:37,990 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:37,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash 774503971, now seen corresponding path program 1 times [2023-12-25 07:23:37,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:37,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257909688] [2023-12-25 07:23:37,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:37,991 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 [2023-12-25 07:23:37,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:37,992 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-12-25 07:23:37,993 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 (49)] Waiting until timeout for monitored process [2023-12-25 07:23:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:38,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:23:38,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-25 07:23:38,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:23:38,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:38,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257909688] [2023-12-25 07:23:38,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257909688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:23:38,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:23:38,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:23:38,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996884813] [2023-12-25 07:23:38,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:23:38,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:23:38,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:38,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:23:38,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:23:38,194 INFO L87 Difference]: Start difference. First operand 12678 states and 16137 transitions. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 07:23:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:41,464 INFO L93 Difference]: Finished difference Result 26437 states and 34169 transitions. [2023-12-25 07:23:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:23:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 200 [2023-12-25 07:23:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:41,496 INFO L225 Difference]: With dead ends: 26437 [2023-12-25 07:23:41,496 INFO L226 Difference]: Without dead ends: 14011 [2023-12-25 07:23:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:23:41,509 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 380 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:41,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1545 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:23:41,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14011 states. [2023-12-25 07:23:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14011 to 12422. [2023-12-25 07:23:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12422 states, 9136 states have (on average 1.2680604203152364) internal successors, (11585), 9225 states have internal predecessors, (11585), 2096 states have call successors, (2096), 1189 states have call predecessors, (2096), 1189 states have return successors, (2096), 2007 states have call predecessors, (2096), 2096 states have call successors, (2096) [2023-12-25 07:23:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12422 states to 12422 states and 15777 transitions. [2023-12-25 07:23:44,087 INFO L78 Accepts]: Start accepts. Automaton has 12422 states and 15777 transitions. Word has length 200 [2023-12-25 07:23:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:44,087 INFO L495 AbstractCegarLoop]: Abstraction has 12422 states and 15777 transitions. [2023-12-25 07:23:44,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 6 states have internal predecessors, (128), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-25 07:23:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 12422 states and 15777 transitions. [2023-12-25 07:23:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-25 07:23:44,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:44,091 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 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, 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] [2023-12-25 07:23:44,097 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 (49)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:44,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:23:44,294 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:44,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:44,295 INFO L85 PathProgramCache]: Analyzing trace with hash 928685351, now seen corresponding path program 1 times [2023-12-25 07:23:44,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190708923] [2023-12-25 07:23:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:44,295 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 [2023-12-25 07:23:44,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:44,297 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-12-25 07:23:44,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-25 07:23:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:44,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:23:44,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 113 proven. 11 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 07:23:44,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-25 07:23:45,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:45,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190708923] [2023-12-25 07:23:45,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190708923] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:45,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:45,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 07:23:45,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765318803] [2023-12-25 07:23:45,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:45,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 07:23:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:45,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 07:23:45,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-25 07:23:45,038 INFO L87 Difference]: Start difference. First operand 12422 states and 15777 transitions. Second operand has 17 states, 17 states have (on average 13.0) internal successors, (221), 17 states have internal predecessors, (221), 7 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:23:49,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:49,257 INFO L93 Difference]: Finished difference Result 27293 states and 34766 transitions. [2023-12-25 07:23:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-25 07:23:49,258 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.0) internal successors, (221), 17 states have internal predecessors, (221), 7 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) Word has length 201 [2023-12-25 07:23:49,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:49,290 INFO L225 Difference]: With dead ends: 27293 [2023-12-25 07:23:49,290 INFO L226 Difference]: Without dead ends: 15123 [2023-12-25 07:23:49,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=354, Invalid=1452, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 07:23:49,307 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 1543 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:49,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 3613 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:23:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15123 states. [2023-12-25 07:23:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15123 to 14732. [2023-12-25 07:23:52,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14732 states, 10838 states have (on average 1.2704373500645876) internal successors, (13769), 10945 states have internal predecessors, (13769), 2483 states have call successors, (2483), 1410 states have call predecessors, (2483), 1410 states have return successors, (2483), 2376 states have call predecessors, (2483), 2483 states have call successors, (2483) [2023-12-25 07:23:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14732 states to 14732 states and 18735 transitions. [2023-12-25 07:23:52,069 INFO L78 Accepts]: Start accepts. Automaton has 14732 states and 18735 transitions. Word has length 201 [2023-12-25 07:23:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:52,069 INFO L495 AbstractCegarLoop]: Abstraction has 14732 states and 18735 transitions. [2023-12-25 07:23:52,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.0) internal successors, (221), 17 states have internal predecessors, (221), 7 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:23:52,070 INFO L276 IsEmpty]: Start isEmpty. Operand 14732 states and 18735 transitions. [2023-12-25 07:23:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-25 07:23:52,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:52,073 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 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, 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] [2023-12-25 07:23:52,076 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 (50)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:52,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:23:52,275 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:52,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1016793040, now seen corresponding path program 1 times [2023-12-25 07:23:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:52,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941408198] [2023-12-25 07:23:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:52,276 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 [2023-12-25 07:23:52,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:52,277 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-12-25 07:23:52,278 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 (51)] Waiting until timeout for monitored process [2023-12-25 07:23:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:52,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:23:52,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 10 proven. 125 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:23:52,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:23:52,776 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 16 proven. 27 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-12-25 07:23:52,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:23:52,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941408198] [2023-12-25 07:23:52,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941408198] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:23:52,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:23:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-25 07:23:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10015672] [2023-12-25 07:23:52,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:23:52,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:23:52,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:23:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:23:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:23:52,778 INFO L87 Difference]: Start difference. First operand 14732 states and 18735 transitions. Second operand has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 12 states have internal predecessors, (244), 7 states have call successors, (42), 5 states have call predecessors, (42), 6 states have return successors, (40), 8 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-25 07:23:56,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:23:56,001 INFO L93 Difference]: Finished difference Result 31963 states and 40478 transitions. [2023-12-25 07:23:56,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:23:56,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 12 states have internal predecessors, (244), 7 states have call successors, (42), 5 states have call predecessors, (42), 6 states have return successors, (40), 8 states have call predecessors, (40), 6 states have call successors, (40) Word has length 201 [2023-12-25 07:23:56,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:23:56,045 INFO L225 Difference]: With dead ends: 31963 [2023-12-25 07:23:56,045 INFO L226 Difference]: Without dead ends: 17483 [2023-12-25 07:23:56,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2023-12-25 07:23:56,061 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 473 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:23:56,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 2594 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:23:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17483 states. [2023-12-25 07:23:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17483 to 15948. [2023-12-25 07:23:59,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15948 states, 11754 states have (on average 1.2578696613918665) internal successors, (14785), 11870 states have internal predecessors, (14785), 2658 states have call successors, (2658), 1535 states have call predecessors, (2658), 1535 states have return successors, (2658), 2542 states have call predecessors, (2658), 2658 states have call successors, (2658) [2023-12-25 07:23:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15948 states to 15948 states and 20101 transitions. [2023-12-25 07:23:59,046 INFO L78 Accepts]: Start accepts. Automaton has 15948 states and 20101 transitions. Word has length 201 [2023-12-25 07:23:59,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:23:59,046 INFO L495 AbstractCegarLoop]: Abstraction has 15948 states and 20101 transitions. [2023-12-25 07:23:59,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 12 states have internal predecessors, (244), 7 states have call successors, (42), 5 states have call predecessors, (42), 6 states have return successors, (40), 8 states have call predecessors, (40), 6 states have call successors, (40) [2023-12-25 07:23:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15948 states and 20101 transitions. [2023-12-25 07:23:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-25 07:23:59,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:23:59,050 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, 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] [2023-12-25 07:23:59,054 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 (51)] Forceful destruction successful, exit code 0 [2023-12-25 07:23:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:23:59,253 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:23:59,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:23:59,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1966700363, now seen corresponding path program 1 times [2023-12-25 07:23:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:23:59,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358218100] [2023-12-25 07:23:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:23:59,254 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 [2023-12-25 07:23:59,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:23:59,255 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-12-25 07:23:59,262 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 (52)] Waiting until timeout for monitored process [2023-12-25 07:23:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:23:59,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:23:59,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:23:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:23:59,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:00,045 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-25 07:24:00,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:00,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358218100] [2023-12-25 07:24:00,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358218100] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:00,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:00,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 07:24:00,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933688061] [2023-12-25 07:24:00,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:00,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 07:24:00,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:00,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 07:24:00,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-25 07:24:00,052 INFO L87 Difference]: Start difference. First operand 15948 states and 20101 transitions. Second operand has 17 states, 17 states have (on average 13.705882352941176) internal successors, (233), 17 states have internal predecessors, (233), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:24:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:04,756 INFO L93 Difference]: Finished difference Result 30572 states and 38698 transitions. [2023-12-25 07:24:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-25 07:24:04,757 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.705882352941176) internal successors, (233), 17 states have internal predecessors, (233), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) Word has length 201 [2023-12-25 07:24:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:04,787 INFO L225 Difference]: With dead ends: 30572 [2023-12-25 07:24:04,787 INFO L226 Difference]: Without dead ends: 15520 [2023-12-25 07:24:04,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=459, Invalid=1991, Unknown=0, NotChecked=0, Total=2450 [2023-12-25 07:24:04,803 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 1554 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:04,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 3972 Invalid, 2444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 07:24:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15520 states. [2023-12-25 07:24:07,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15520 to 15223. [2023-12-25 07:24:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15223 states, 11227 states have (on average 1.257771443840741) internal successors, (14121), 11335 states have internal predecessors, (14121), 2534 states have call successors, (2534), 1461 states have call predecessors, (2534), 1461 states have return successors, (2534), 2426 states have call predecessors, (2534), 2534 states have call successors, (2534) [2023-12-25 07:24:07,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15223 states to 15223 states and 19189 transitions. [2023-12-25 07:24:07,770 INFO L78 Accepts]: Start accepts. Automaton has 15223 states and 19189 transitions. Word has length 201 [2023-12-25 07:24:07,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:07,771 INFO L495 AbstractCegarLoop]: Abstraction has 15223 states and 19189 transitions. [2023-12-25 07:24:07,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.705882352941176) internal successors, (233), 17 states have internal predecessors, (233), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:24:07,771 INFO L276 IsEmpty]: Start isEmpty. Operand 15223 states and 19189 transitions. [2023-12-25 07:24:07,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-25 07:24:07,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:07,774 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:24:07,777 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 (52)] Ended with exit code 0 [2023-12-25 07:24:07,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:07,975 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:07,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:07,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1464329554, now seen corresponding path program 1 times [2023-12-25 07:24:07,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:07,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088794091] [2023-12-25 07:24:07,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:07,976 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 [2023-12-25 07:24:07,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:07,977 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-12-25 07:24:07,977 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 (53)] Waiting until timeout for monitored process [2023-12-25 07:24:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:08,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:24:08,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 48 proven. 99 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-25 07:24:08,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:08,395 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-25 07:24:08,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088794091] [2023-12-25 07:24:08,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088794091] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:08,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:08,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:24:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966478898] [2023-12-25 07:24:08,396 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:08,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:24:08,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:24:08,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:24:08,399 INFO L87 Difference]: Start difference. First operand 15223 states and 19189 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2023-12-25 07:24:11,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:11,554 INFO L93 Difference]: Finished difference Result 29102 states and 36727 transitions. [2023-12-25 07:24:11,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:24:11,555 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) Word has length 203 [2023-12-25 07:24:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:11,588 INFO L225 Difference]: With dead ends: 29102 [2023-12-25 07:24:11,588 INFO L226 Difference]: Without dead ends: 14999 [2023-12-25 07:24:11,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:24:11,603 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 607 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:11,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 2271 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:24:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14999 states. [2023-12-25 07:24:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14999 to 14649. [2023-12-25 07:24:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14649 states, 10819 states have (on average 1.2525187170718182) internal successors, (13551), 10923 states have internal predecessors, (13551), 2417 states have call successors, (2417), 1412 states have call predecessors, (2417), 1412 states have return successors, (2417), 2313 states have call predecessors, (2417), 2417 states have call successors, (2417) [2023-12-25 07:24:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14649 states to 14649 states and 18385 transitions. [2023-12-25 07:24:14,324 INFO L78 Accepts]: Start accepts. Automaton has 14649 states and 18385 transitions. Word has length 203 [2023-12-25 07:24:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:14,324 INFO L495 AbstractCegarLoop]: Abstraction has 14649 states and 18385 transitions. [2023-12-25 07:24:14,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41) [2023-12-25 07:24:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 14649 states and 18385 transitions. [2023-12-25 07:24:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-25 07:24:14,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:14,327 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:24:14,330 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 (53)] Ended with exit code 0 [2023-12-25 07:24:14,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:14,527 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:14,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:14,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1002341618, now seen corresponding path program 1 times [2023-12-25 07:24:14,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:14,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227191388] [2023-12-25 07:24:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:14,529 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 [2023-12-25 07:24:14,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:14,530 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-12-25 07:24:14,541 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 (54)] Waiting until timeout for monitored process [2023-12-25 07:24:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:14,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:24:14,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 53 proven. 89 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:24:14,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:14,912 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-12-25 07:24:14,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227191388] [2023-12-25 07:24:14,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227191388] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:14,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:14,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:24:14,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855746295] [2023-12-25 07:24:14,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:14,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:24:14,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:14,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:24:14,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:24:14,915 INFO L87 Difference]: Start difference. First operand 14649 states and 18385 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-25 07:24:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:17,926 INFO L93 Difference]: Finished difference Result 28306 states and 35579 transitions. [2023-12-25 07:24:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:24:17,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) Word has length 206 [2023-12-25 07:24:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:17,956 INFO L225 Difference]: With dead ends: 28306 [2023-12-25 07:24:17,956 INFO L226 Difference]: Without dead ends: 14712 [2023-12-25 07:24:17,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:24:17,972 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 831 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:17,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 2180 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:24:17,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14712 states. [2023-12-25 07:24:20,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14712 to 12234. [2023-12-25 07:24:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12234 states, 9079 states have (on average 1.247384073135808) internal successors, (11325), 9164 states have internal predecessors, (11325), 1972 states have call successors, (1972), 1182 states have call predecessors, (1972), 1182 states have return successors, (1972), 1887 states have call predecessors, (1972), 1972 states have call successors, (1972) [2023-12-25 07:24:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12234 states to 12234 states and 15269 transitions. [2023-12-25 07:24:20,277 INFO L78 Accepts]: Start accepts. Automaton has 12234 states and 15269 transitions. Word has length 206 [2023-12-25 07:24:20,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:20,277 INFO L495 AbstractCegarLoop]: Abstraction has 12234 states and 15269 transitions. [2023-12-25 07:24:20,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 4 states have call successors, (42), 4 states have call predecessors, (42), 6 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) [2023-12-25 07:24:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 12234 states and 15269 transitions. [2023-12-25 07:24:20,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-25 07:24:20,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:20,280 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, 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] [2023-12-25 07:24:20,283 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 (54)] Ended with exit code 0 [2023-12-25 07:24:20,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:20,481 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:20,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1152618627, now seen corresponding path program 1 times [2023-12-25 07:24:20,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:20,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786673152] [2023-12-25 07:24:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:20,482 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 [2023-12-25 07:24:20,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:20,483 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-12-25 07:24:20,483 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 (55)] Waiting until timeout for monitored process [2023-12-25 07:24:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:20,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:24:20,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:24:20,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-25 07:24:20,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:20,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786673152] [2023-12-25 07:24:20,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786673152] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:20,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:20,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-25 07:24:20,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761765494] [2023-12-25 07:24:20,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:20,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:24:20,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:20,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:24:20,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:24:20,996 INFO L87 Difference]: Start difference. First operand 12234 states and 15269 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-25 07:24:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:24,539 INFO L93 Difference]: Finished difference Result 26222 states and 33006 transitions. [2023-12-25 07:24:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 07:24:24,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Word has length 205 [2023-12-25 07:24:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:24,572 INFO L225 Difference]: With dead ends: 26222 [2023-12-25 07:24:24,573 INFO L226 Difference]: Without dead ends: 15022 [2023-12-25 07:24:24,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 401 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2023-12-25 07:24:24,584 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 792 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:24,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 2826 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:24:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15022 states. [2023-12-25 07:24:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15022 to 14738. [2023-12-25 07:24:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14738 states, 10913 states have (on average 1.2509850636855127) internal successors, (13652), 11019 states have internal predecessors, (13652), 2396 states have call successors, (2396), 1428 states have call predecessors, (2396), 1428 states have return successors, (2396), 2290 states have call predecessors, (2396), 2396 states have call successors, (2396) [2023-12-25 07:24:27,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14738 states to 14738 states and 18444 transitions. [2023-12-25 07:24:27,455 INFO L78 Accepts]: Start accepts. Automaton has 14738 states and 18444 transitions. Word has length 205 [2023-12-25 07:24:27,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:27,455 INFO L495 AbstractCegarLoop]: Abstraction has 14738 states and 18444 transitions. [2023-12-25 07:24:27,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 12 states have internal predecessors, (189), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-25 07:24:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 14738 states and 18444 transitions. [2023-12-25 07:24:27,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-25 07:24:27,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:27,458 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, 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] [2023-12-25 07:24:27,460 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 (55)] Ended with exit code 0 [2023-12-25 07:24:27,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:27,658 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:27,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1170399474, now seen corresponding path program 1 times [2023-12-25 07:24:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:27,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699895519] [2023-12-25 07:24:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:27,660 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 [2023-12-25 07:24:27,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:27,661 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2023-12-25 07:24:27,661 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 (56)] Waiting until timeout for monitored process [2023-12-25 07:24:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:27,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:24:27,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 4 proven. 124 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:24:28,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-25 07:24:28,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:28,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699895519] [2023-12-25 07:24:28,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699895519] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:28,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:28,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-25 07:24:28,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857341684] [2023-12-25 07:24:28,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:28,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:24:28,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:28,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:24:28,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:24:28,179 INFO L87 Difference]: Start difference. First operand 14738 states and 18444 transitions. Second operand has 12 states, 12 states have (on average 16.25) internal successors, (195), 12 states have internal predecessors, (195), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-25 07:24:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:31,835 INFO L93 Difference]: Finished difference Result 30655 states and 38622 transitions. [2023-12-25 07:24:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:24:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.25) internal successors, (195), 12 states have internal predecessors, (195), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) Word has length 207 [2023-12-25 07:24:31,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:31,872 INFO L225 Difference]: With dead ends: 30655 [2023-12-25 07:24:31,872 INFO L226 Difference]: Without dead ends: 17006 [2023-12-25 07:24:31,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-25 07:24:31,890 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 922 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:31,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 2322 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:24:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17006 states. [2023-12-25 07:24:35,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17006 to 16633. [2023-12-25 07:24:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16633 states, 12338 states have (on average 1.2513373318203922) internal successors, (15439), 12458 states have internal predecessors, (15439), 2688 states have call successors, (2688), 1606 states have call predecessors, (2688), 1606 states have return successors, (2688), 2568 states have call predecessors, (2688), 2688 states have call successors, (2688) [2023-12-25 07:24:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16633 states to 16633 states and 20815 transitions. [2023-12-25 07:24:35,070 INFO L78 Accepts]: Start accepts. Automaton has 16633 states and 20815 transitions. Word has length 207 [2023-12-25 07:24:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:35,070 INFO L495 AbstractCegarLoop]: Abstraction has 16633 states and 20815 transitions. [2023-12-25 07:24:35,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.25) internal successors, (195), 12 states have internal predecessors, (195), 6 states have call successors, (41), 6 states have call predecessors, (41), 5 states have return successors, (40), 5 states have call predecessors, (40), 5 states have call successors, (40) [2023-12-25 07:24:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 16633 states and 20815 transitions. [2023-12-25 07:24:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-25 07:24:35,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:35,073 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, 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] [2023-12-25 07:24:35,079 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 (56)] Ended with exit code 0 [2023-12-25 07:24:35,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:35,274 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:35,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1774480778, now seen corresponding path program 1 times [2023-12-25 07:24:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:35,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927150619] [2023-12-25 07:24:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:35,275 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 [2023-12-25 07:24:35,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:35,276 INFO L229 MonitoredProcess]: Starting monitored process 57 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) [2023-12-25 07:24:35,279 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 (57)] Waiting until timeout for monitored process [2023-12-25 07:24:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:35,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:24:35,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 113 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:24:35,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 31 proven. 7 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-25 07:24:35,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:35,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927150619] [2023-12-25 07:24:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927150619] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:35,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:35,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-12-25 07:24:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776371311] [2023-12-25 07:24:35,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:35,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-25 07:24:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-25 07:24:35,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-25 07:24:35,778 INFO L87 Difference]: Start difference. First operand 16633 states and 20815 transitions. Second operand has 15 states, 15 states have (on average 16.4) internal successors, (246), 15 states have internal predecessors, (246), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:24:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:40,890 INFO L93 Difference]: Finished difference Result 36964 states and 46545 transitions. [2023-12-25 07:24:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-25 07:24:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 16.4) internal successors, (246), 15 states have internal predecessors, (246), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) Word has length 209 [2023-12-25 07:24:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:40,947 INFO L225 Difference]: With dead ends: 36964 [2023-12-25 07:24:40,947 INFO L226 Difference]: Without dead ends: 21355 [2023-12-25 07:24:40,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2023-12-25 07:24:40,971 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1604 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:40,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2799 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:24:40,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21355 states. [2023-12-25 07:24:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21355 to 20703. [2023-12-25 07:24:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20703 states, 15331 states have (on average 1.2573217663557499) internal successors, (19276), 15487 states have internal predecessors, (19276), 3368 states have call successors, (3368), 2003 states have call predecessors, (3368), 2003 states have return successors, (3368), 3212 states have call predecessors, (3368), 3368 states have call successors, (3368) [2023-12-25 07:24:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20703 states to 20703 states and 26012 transitions. [2023-12-25 07:24:45,206 INFO L78 Accepts]: Start accepts. Automaton has 20703 states and 26012 transitions. Word has length 209 [2023-12-25 07:24:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:45,207 INFO L495 AbstractCegarLoop]: Abstraction has 20703 states and 26012 transitions. [2023-12-25 07:24:45,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.4) internal successors, (246), 15 states have internal predecessors, (246), 7 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (40), 7 states have call predecessors, (40), 7 states have call successors, (40) [2023-12-25 07:24:45,207 INFO L276 IsEmpty]: Start isEmpty. Operand 20703 states and 26012 transitions. [2023-12-25 07:24:45,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-25 07:24:45,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:45,210 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, 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] [2023-12-25 07:24:45,213 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 (57)] Ended with exit code 0 [2023-12-25 07:24:45,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:45,410 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:45,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:45,411 INFO L85 PathProgramCache]: Analyzing trace with hash 834306680, now seen corresponding path program 1 times [2023-12-25 07:24:45,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:45,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847018524] [2023-12-25 07:24:45,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:45,412 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 [2023-12-25 07:24:45,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:45,413 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2023-12-25 07:24:45,414 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 (58)] Waiting until timeout for monitored process [2023-12-25 07:24:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:45,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-25 07:24:45,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 81 proven. 47 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:24:45,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-25 07:24:46,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:46,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847018524] [2023-12-25 07:24:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847018524] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:46,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:46,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2023-12-25 07:24:46,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941640757] [2023-12-25 07:24:46,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-25 07:24:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-25 07:24:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-12-25 07:24:46,105 INFO L87 Difference]: Start difference. First operand 20703 states and 26012 transitions. Second operand has 21 states, 21 states have (on average 12.238095238095237) internal successors, (257), 19 states have internal predecessors, (257), 9 states have call successors, (41), 6 states have call predecessors, (41), 8 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) [2023-12-25 07:24:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:24:53,188 INFO L93 Difference]: Finished difference Result 45836 states and 58870 transitions. [2023-12-25 07:24:53,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:24:53,188 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.238095238095237) internal successors, (257), 19 states have internal predecessors, (257), 9 states have call successors, (41), 6 states have call predecessors, (41), 8 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) Word has length 209 [2023-12-25 07:24:53,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:24:53,263 INFO L225 Difference]: With dead ends: 45836 [2023-12-25 07:24:53,263 INFO L226 Difference]: Without dead ends: 26208 [2023-12-25 07:24:53,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=278, Invalid=1282, Unknown=0, NotChecked=0, Total=1560 [2023-12-25 07:24:53,290 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1576 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:24:53,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 2619 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:24:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26208 states. [2023-12-25 07:24:58,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26208 to 21039. [2023-12-25 07:24:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21039 states, 15584 states have (on average 1.2560959958932238) internal successors, (19575), 15742 states have internal predecessors, (19575), 3405 states have call successors, (3405), 2049 states have call predecessors, (3405), 2049 states have return successors, (3405), 3247 states have call predecessors, (3405), 3405 states have call successors, (3405) [2023-12-25 07:24:58,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21039 states to 21039 states and 26385 transitions. [2023-12-25 07:24:58,136 INFO L78 Accepts]: Start accepts. Automaton has 21039 states and 26385 transitions. Word has length 209 [2023-12-25 07:24:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:24:58,136 INFO L495 AbstractCegarLoop]: Abstraction has 21039 states and 26385 transitions. [2023-12-25 07:24:58,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.238095238095237) internal successors, (257), 19 states have internal predecessors, (257), 9 states have call successors, (41), 6 states have call predecessors, (41), 8 states have return successors, (40), 11 states have call predecessors, (40), 9 states have call successors, (40) [2023-12-25 07:24:58,137 INFO L276 IsEmpty]: Start isEmpty. Operand 21039 states and 26385 transitions. [2023-12-25 07:24:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-25 07:24:58,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:24:58,155 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:24:58,160 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 (58)] Forceful destruction successful, exit code 0 [2023-12-25 07:24:58,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:24:58,359 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:24:58,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:24:58,359 INFO L85 PathProgramCache]: Analyzing trace with hash -901706951, now seen corresponding path program 1 times [2023-12-25 07:24:58,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:24:58,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764172085] [2023-12-25 07:24:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:24:58,360 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 [2023-12-25 07:24:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:24:58,361 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2023-12-25 07:24:58,362 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 (59)] Waiting until timeout for monitored process [2023-12-25 07:24:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:24:58,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:24:58,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:24:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 280 proven. 4 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-25 07:24:58,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:24:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-12-25 07:24:58,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:24:58,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764172085] [2023-12-25 07:24:58,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1764172085] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:24:58,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:24:58,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-25 07:24:58,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56343705] [2023-12-25 07:24:58,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:24:58,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:24:58,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:24:58,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:24:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:24:58,715 INFO L87 Difference]: Start difference. First operand 21039 states and 26385 transitions. Second operand has 9 states, 9 states have (on average 22.22222222222222) internal successors, (200), 8 states have internal predecessors, (200), 5 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) [2023-12-25 07:25:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:03,153 INFO L93 Difference]: Finished difference Result 39274 states and 49096 transitions. [2023-12-25 07:25:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:25:03,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.22222222222222) internal successors, (200), 8 states have internal predecessors, (200), 5 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) Word has length 265 [2023-12-25 07:25:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:03,200 INFO L225 Difference]: With dead ends: 39274 [2023-12-25 07:25:03,200 INFO L226 Difference]: Without dead ends: 19332 [2023-12-25 07:25:03,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:25:03,225 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 555 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:03,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1697 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:25:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19332 states. [2023-12-25 07:25:07,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19332 to 18775. [2023-12-25 07:25:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18775 states, 13976 states have (on average 1.2416285060103034) internal successors, (17353), 14115 states have internal predecessors, (17353), 2949 states have call successors, (2949), 1849 states have call predecessors, (2949), 1849 states have return successors, (2949), 2810 states have call predecessors, (2949), 2949 states have call successors, (2949) [2023-12-25 07:25:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18775 states to 18775 states and 23251 transitions. [2023-12-25 07:25:07,347 INFO L78 Accepts]: Start accepts. Automaton has 18775 states and 23251 transitions. Word has length 265 [2023-12-25 07:25:07,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:25:07,348 INFO L495 AbstractCegarLoop]: Abstraction has 18775 states and 23251 transitions. [2023-12-25 07:25:07,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.22222222222222) internal successors, (200), 8 states have internal predecessors, (200), 5 states have call successors, (43), 4 states have call predecessors, (43), 6 states have return successors, (43), 6 states have call predecessors, (43), 5 states have call successors, (43) [2023-12-25 07:25:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18775 states and 23251 transitions. [2023-12-25 07:25:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-25 07:25:07,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:25:07,362 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:25:07,365 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 (59)] Ended with exit code 0 [2023-12-25 07:25:07,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:25:07,564 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:25:07,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:25:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1062361734, now seen corresponding path program 1 times [2023-12-25 07:25:07,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:25:07,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079474284] [2023-12-25 07:25:07,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:25:07,565 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 [2023-12-25 07:25:07,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:25:07,566 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2023-12-25 07:25:07,568 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 (60)] Waiting until timeout for monitored process [2023-12-25 07:25:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:25:07,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 07:25:07,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:25:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 149 proven. 132 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:25:08,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:25:09,140 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 43 proven. 37 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-25 07:25:09,140 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:25:09,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079474284] [2023-12-25 07:25:09,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079474284] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:25:09,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:25:09,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-12-25 07:25:09,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599450776] [2023-12-25 07:25:09,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:25:09,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 07:25:09,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:25:09,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 07:25:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:25:09,143 INFO L87 Difference]: Start difference. First operand 18775 states and 23251 transitions. Second operand has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 11 states have call predecessors, (54), 11 states have call successors, (54) [2023-12-25 07:25:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:16,381 INFO L93 Difference]: Finished difference Result 38869 states and 48291 transitions. [2023-12-25 07:25:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 07:25:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 11 states have call predecessors, (54), 11 states have call successors, (54) Word has length 266 [2023-12-25 07:25:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:16,439 INFO L225 Difference]: With dead ends: 38869 [2023-12-25 07:25:16,439 INFO L226 Difference]: Without dead ends: 21225 [2023-12-25 07:25:16,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 524 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=800, Invalid=4456, Unknown=0, NotChecked=0, Total=5256 [2023-12-25 07:25:16,463 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 1557 mSDsluCounter, 5301 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 5975 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:16,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 5975 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 07:25:16,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21225 states. [2023-12-25 07:25:20,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21225 to 19826. [2023-12-25 07:25:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19826 states, 14757 states have (on average 1.2416480314427052) internal successors, (18323), 14912 states have internal predecessors, (18323), 3108 states have call successors, (3108), 1960 states have call predecessors, (3108), 1960 states have return successors, (3108), 2953 states have call predecessors, (3108), 3108 states have call successors, (3108) [2023-12-25 07:25:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19826 states to 19826 states and 24539 transitions. [2023-12-25 07:25:20,723 INFO L78 Accepts]: Start accepts. Automaton has 19826 states and 24539 transitions. Word has length 266 [2023-12-25 07:25:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:25:20,724 INFO L495 AbstractCegarLoop]: Abstraction has 19826 states and 24539 transitions. [2023-12-25 07:25:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 11 states have call predecessors, (54), 11 states have call successors, (54) [2023-12-25 07:25:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 19826 states and 24539 transitions. [2023-12-25 07:25:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-25 07:25:20,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:25:20,740 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:25:20,746 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 (60)] Forceful destruction successful, exit code 0 [2023-12-25 07:25:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:25:20,941 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:25:20,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:25:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash -310974508, now seen corresponding path program 1 times [2023-12-25 07:25:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:25:20,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323272337] [2023-12-25 07:25:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:25:20,943 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 [2023-12-25 07:25:20,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:25:20,944 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2023-12-25 07:25:20,944 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 (61)] Waiting until timeout for monitored process [2023-12-25 07:25:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:25:21,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:25:21,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:25:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 198 proven. 99 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:25:21,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:25:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-12-25 07:25:21,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:25:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323272337] [2023-12-25 07:25:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323272337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:25:21,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:25:21,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 07:25:21,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440620617] [2023-12-25 07:25:21,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:25:21,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:25:21,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:25:21,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:25:21,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:25:21,657 INFO L87 Difference]: Start difference. First operand 19826 states and 24539 transitions. Second operand has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 7 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:25:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:26,218 INFO L93 Difference]: Finished difference Result 38512 states and 47868 transitions. [2023-12-25 07:25:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:25:26,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 7 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) Word has length 266 [2023-12-25 07:25:26,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:26,264 INFO L225 Difference]: With dead ends: 38512 [2023-12-25 07:25:26,265 INFO L226 Difference]: Without dead ends: 19817 [2023-12-25 07:25:26,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 523 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:25:26,284 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 684 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:26,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 949 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:25:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19817 states. [2023-12-25 07:25:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19817 to 19813. [2023-12-25 07:25:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19813 states, 14744 states have (on average 1.2407080846446013) internal successors, (18293), 14899 states have internal predecessors, (18293), 3108 states have call successors, (3108), 1960 states have call predecessors, (3108), 1960 states have return successors, (3108), 2953 states have call predecessors, (3108), 3108 states have call successors, (3108) [2023-12-25 07:25:30,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19813 states to 19813 states and 24509 transitions. [2023-12-25 07:25:30,595 INFO L78 Accepts]: Start accepts. Automaton has 19813 states and 24509 transitions. Word has length 266 [2023-12-25 07:25:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:25:30,595 INFO L495 AbstractCegarLoop]: Abstraction has 19813 states and 24509 transitions. [2023-12-25 07:25:30,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.666666666666664) internal successors, (303), 9 states have internal predecessors, (303), 7 states have call successors, (55), 5 states have call predecessors, (55), 5 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:25:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 19813 states and 24509 transitions. [2023-12-25 07:25:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-25 07:25:30,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:25:30,608 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:25:30,611 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 (61)] Ended with exit code 0 [2023-12-25 07:25:30,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:25:30,808 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:25:30,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:25:30,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1589251061, now seen corresponding path program 1 times [2023-12-25 07:25:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:25:30,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113528919] [2023-12-25 07:25:30,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:25:30,810 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 [2023-12-25 07:25:30,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:25:30,811 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2023-12-25 07:25:30,812 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 (62)] Waiting until timeout for monitored process [2023-12-25 07:25:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:25:30,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:25:30,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:25:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 141 proven. 156 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:25:31,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:25:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 62 proven. 28 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-12-25 07:25:31,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:25:31,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113528919] [2023-12-25 07:25:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113528919] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:25:31,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:25:31,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-25 07:25:31,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788372127] [2023-12-25 07:25:31,489 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:25:31,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:25:31,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:25:31,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:25:31,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:25:31,491 INFO L87 Difference]: Start difference. First operand 19813 states and 24509 transitions. Second operand has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:25:36,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:36,048 INFO L93 Difference]: Finished difference Result 39038 states and 48486 transitions. [2023-12-25 07:25:36,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 07:25:36,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) Word has length 266 [2023-12-25 07:25:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:36,103 INFO L225 Difference]: With dead ends: 39038 [2023-12-25 07:25:36,104 INFO L226 Difference]: Without dead ends: 20356 [2023-12-25 07:25:36,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 526 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-25 07:25:36,130 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 407 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:36,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1913 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:25:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20356 states. [2023-12-25 07:25:40,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20356 to 20132. [2023-12-25 07:25:40,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20132 states, 15017 states have (on average 1.2405274022774189) internal successors, (18629), 15172 states have internal predecessors, (18629), 3130 states have call successors, (3130), 1984 states have call predecessors, (3130), 1984 states have return successors, (3130), 2975 states have call predecessors, (3130), 3130 states have call successors, (3130) [2023-12-25 07:25:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20132 states to 20132 states and 24889 transitions. [2023-12-25 07:25:40,579 INFO L78 Accepts]: Start accepts. Automaton has 20132 states and 24889 transitions. Word has length 266 [2023-12-25 07:25:40,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:25:40,579 INFO L495 AbstractCegarLoop]: Abstraction has 20132 states and 24889 transitions. [2023-12-25 07:25:40,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.3) internal successors, (273), 10 states have internal predecessors, (273), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:25:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 20132 states and 24889 transitions. [2023-12-25 07:25:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-25 07:25:40,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:25:40,595 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:25:40,599 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 (62)] Ended with exit code 0 [2023-12-25 07:25:40,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:25:40,797 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:25:40,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:25:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1912022037, now seen corresponding path program 1 times [2023-12-25 07:25:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:25:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114015144] [2023-12-25 07:25:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:25:40,799 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 [2023-12-25 07:25:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:25:40,801 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2023-12-25 07:25:40,802 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 (63)] Waiting until timeout for monitored process [2023-12-25 07:25:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:25:40,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:25:40,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:25:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 120 proven. 161 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:25:41,536 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:25:41,997 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-25 07:25:41,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:25:41,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114015144] [2023-12-25 07:25:41,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114015144] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:25:41,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:25:41,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-12-25 07:25:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471082066] [2023-12-25 07:25:41,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:25:41,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 07:25:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:25:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 07:25:41,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-12-25 07:25:41,999 INFO L87 Difference]: Start difference. First operand 20132 states and 24889 transitions. Second operand has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 9 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:25:47,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:47,683 INFO L93 Difference]: Finished difference Result 41211 states and 51119 transitions. [2023-12-25 07:25:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:25:47,683 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 9 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 268 [2023-12-25 07:25:47,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:47,725 INFO L225 Difference]: With dead ends: 41211 [2023-12-25 07:25:47,725 INFO L226 Difference]: Without dead ends: 22210 [2023-12-25 07:25:47,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 522 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=804, Unknown=0, NotChecked=0, Total=992 [2023-12-25 07:25:47,744 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 869 mSDsluCounter, 3451 mSDsCounter, 0 mSdLazyCounter, 2089 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 3989 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:47,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 3989 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2089 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 07:25:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22210 states. [2023-12-25 07:25:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22210 to 20017. [2023-12-25 07:25:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20017 states, 14932 states have (on average 1.237945352263595) internal successors, (18485), 15087 states have internal predecessors, (18485), 3113 states have call successors, (3113), 1971 states have call predecessors, (3113), 1971 states have return successors, (3113), 2958 states have call predecessors, (3113), 3113 states have call successors, (3113) [2023-12-25 07:25:52,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20017 states to 20017 states and 24711 transitions. [2023-12-25 07:25:52,044 INFO L78 Accepts]: Start accepts. Automaton has 20017 states and 24711 transitions. Word has length 268 [2023-12-25 07:25:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:25:52,044 INFO L495 AbstractCegarLoop]: Abstraction has 20017 states and 24711 transitions. [2023-12-25 07:25:52,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 9 states have call successors, (55), 7 states have call predecessors, (55), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:25:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 20017 states and 24711 transitions. [2023-12-25 07:25:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-25 07:25:52,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:25:52,059 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:25:52,063 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 (63)] Ended with exit code 0 [2023-12-25 07:25:52,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:25:52,263 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:25:52,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:25:52,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1338268620, now seen corresponding path program 1 times [2023-12-25 07:25:52,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:25:52,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958362689] [2023-12-25 07:25:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:25:52,265 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 [2023-12-25 07:25:52,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:25:52,266 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2023-12-25 07:25:52,267 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 (64)] Waiting until timeout for monitored process [2023-12-25 07:25:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:25:52,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:25:52,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:25:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 159 proven. 122 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:25:53,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:25:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 43 proven. 37 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-25 07:25:53,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:25:53,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958362689] [2023-12-25 07:25:53,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958362689] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:25:53,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:25:53,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-25 07:25:53,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225475119] [2023-12-25 07:25:53,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:25:53,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:25:53,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:25:53,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:25:53,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:25:53,527 INFO L87 Difference]: Start difference. First operand 20017 states and 24711 transitions. Second operand has 16 states, 16 states have (on average 19.1875) internal successors, (307), 16 states have internal predecessors, (307), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:25:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:25:59,074 INFO L93 Difference]: Finished difference Result 39615 states and 49066 transitions. [2023-12-25 07:25:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-25 07:25:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 19.1875) internal successors, (307), 16 states have internal predecessors, (307), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 268 [2023-12-25 07:25:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:25:59,122 INFO L225 Difference]: With dead ends: 39615 [2023-12-25 07:25:59,123 INFO L226 Difference]: Without dead ends: 20729 [2023-12-25 07:25:59,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 526 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=439, Invalid=1723, Unknown=0, NotChecked=0, Total=2162 [2023-12-25 07:25:59,143 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 732 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:25:59,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 3469 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:25:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20729 states. [2023-12-25 07:26:03,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20729 to 20360. [2023-12-25 07:26:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20360 states, 15187 states have (on average 1.2369789951932575) internal successors, (18786), 15344 states have internal predecessors, (18786), 3163 states have call successors, (3163), 2009 states have call predecessors, (3163), 2009 states have return successors, (3163), 3006 states have call predecessors, (3163), 3163 states have call successors, (3163) [2023-12-25 07:26:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20360 states to 20360 states and 25112 transitions. [2023-12-25 07:26:03,554 INFO L78 Accepts]: Start accepts. Automaton has 20360 states and 25112 transitions. Word has length 268 [2023-12-25 07:26:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:26:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 20360 states and 25112 transitions. [2023-12-25 07:26:03,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.1875) internal successors, (307), 16 states have internal predecessors, (307), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:26:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 20360 states and 25112 transitions. [2023-12-25 07:26:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-25 07:26:03,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:26:03,568 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:26:03,576 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 (64)] Ended with exit code 0 [2023-12-25 07:26:03,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:26:03,771 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:26:03,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:26:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash -840593899, now seen corresponding path program 1 times [2023-12-25 07:26:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:26:03,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743473412] [2023-12-25 07:26:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:26:03,772 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 [2023-12-25 07:26:03,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:26:03,773 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2023-12-25 07:26:03,776 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 (65)] Waiting until timeout for monitored process [2023-12-25 07:26:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:26:03,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:26:03,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:26:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 157 proven. 127 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:26:04,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:26:05,122 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 41 proven. 42 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-25 07:26:05,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:26:05,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743473412] [2023-12-25 07:26:05,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743473412] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:26:05,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:26:05,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-25 07:26:05,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035425560] [2023-12-25 07:26:05,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:26:05,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:26:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:26:05,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:26:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:26:05,128 INFO L87 Difference]: Start difference. First operand 20360 states and 25112 transitions. Second operand has 16 states, 16 states have (on average 19.375) internal successors, (310), 16 states have internal predecessors, (310), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:26:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:26:10,584 INFO L93 Difference]: Finished difference Result 39463 states and 48879 transitions. [2023-12-25 07:26:10,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-25 07:26:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 19.375) internal successors, (310), 16 states have internal predecessors, (310), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 269 [2023-12-25 07:26:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:26:10,639 INFO L225 Difference]: With dead ends: 39463 [2023-12-25 07:26:10,639 INFO L226 Difference]: Without dead ends: 20234 [2023-12-25 07:26:10,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 526 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=307, Invalid=1175, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 07:26:10,664 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 606 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:26:10,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 3074 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:26:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20234 states. [2023-12-25 07:26:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20234 to 20128. [2023-12-25 07:26:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20128 states, 15016 states have (on average 1.2373468300479489) internal successors, (18580), 15170 states have internal predecessors, (18580), 3129 states have call successors, (3129), 1982 states have call predecessors, (3129), 1982 states have return successors, (3129), 2975 states have call predecessors, (3129), 3129 states have call successors, (3129) [2023-12-25 07:26:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 24838 transitions. [2023-12-25 07:26:15,157 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 24838 transitions. Word has length 269 [2023-12-25 07:26:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:26:15,157 INFO L495 AbstractCegarLoop]: Abstraction has 20128 states and 24838 transitions. [2023-12-25 07:26:15,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.375) internal successors, (310), 16 states have internal predecessors, (310), 9 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2023-12-25 07:26:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 24838 transitions. [2023-12-25 07:26:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-25 07:26:15,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:26:15,168 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:26:15,171 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 (65)] Ended with exit code 0 [2023-12-25 07:26:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:26:15,369 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:26:15,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:26:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash 912439197, now seen corresponding path program 1 times [2023-12-25 07:26:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:26:15,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398837731] [2023-12-25 07:26:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:26:15,370 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 [2023-12-25 07:26:15,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:26:15,371 INFO L229 MonitoredProcess]: Starting monitored process 66 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) [2023-12-25 07:26:15,373 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 (66)] Waiting until timeout for monitored process [2023-12-25 07:26:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:26:15,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:26:15,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:26:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 227 proven. 104 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:26:16,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:26:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 54 proven. 37 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2023-12-25 07:26:16,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:26:16,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398837731] [2023-12-25 07:26:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398837731] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:26:16,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:26:16,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:26:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845330254] [2023-12-25 07:26:16,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:26:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:26:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:26:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:26:16,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:26:16,280 INFO L87 Difference]: Start difference. First operand 20128 states and 24838 transitions. Second operand has 14 states, 14 states have (on average 21.5) internal successors, (301), 14 states have internal predecessors, (301), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:26:23,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:26:23,147 INFO L93 Difference]: Finished difference Result 47445 states and 59058 transitions. [2023-12-25 07:26:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 07:26:23,148 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.5) internal successors, (301), 14 states have internal predecessors, (301), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 270 [2023-12-25 07:26:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:26:23,229 INFO L225 Difference]: With dead ends: 47445 [2023-12-25 07:26:23,230 INFO L226 Difference]: Without dead ends: 28448 [2023-12-25 07:26:23,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=521, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:26:23,262 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 1068 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:26:23,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1777 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:26:23,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28448 states. [2023-12-25 07:26:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28448 to 23921. [2023-12-25 07:26:29,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23921 states, 17816 states have (on average 1.2409070498428378) internal successors, (22108), 18004 states have internal predecessors, (22108), 3740 states have call successors, (3740), 2364 states have call predecessors, (3740), 2364 states have return successors, (3740), 3552 states have call predecessors, (3740), 3740 states have call successors, (3740) [2023-12-25 07:26:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23921 states to 23921 states and 29588 transitions. [2023-12-25 07:26:29,135 INFO L78 Accepts]: Start accepts. Automaton has 23921 states and 29588 transitions. Word has length 270 [2023-12-25 07:26:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:26:29,135 INFO L495 AbstractCegarLoop]: Abstraction has 23921 states and 29588 transitions. [2023-12-25 07:26:29,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.5) internal successors, (301), 14 states have internal predecessors, (301), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:26:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23921 states and 29588 transitions. [2023-12-25 07:26:29,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-25 07:26:29,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:26:29,147 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:26:29,150 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 (66)] Ended with exit code 0 [2023-12-25 07:26:29,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:26:29,347 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:26:29,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:26:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1241490353, now seen corresponding path program 1 times [2023-12-25 07:26:29,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:26:29,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256977846] [2023-12-25 07:26:29,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:26:29,348 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 [2023-12-25 07:26:29,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:26:29,349 INFO L229 MonitoredProcess]: Starting monitored process 67 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) [2023-12-25 07:26:29,350 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 (67)] Waiting until timeout for monitored process [2023-12-25 07:26:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:26:29,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:26:29,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:26:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 133 proven. 148 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-25 07:26:29,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:26:30,194 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 51 proven. 29 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-25 07:26:30,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:26:30,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256977846] [2023-12-25 07:26:30,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256977846] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:26:30,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:26:30,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-12-25 07:26:30,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782486301] [2023-12-25 07:26:30,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:26:30,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:26:30,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:26:30,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:26:30,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:26:30,196 INFO L87 Difference]: Start difference. First operand 23921 states and 29588 transitions. Second operand has 12 states, 12 states have (on average 24.0) internal successors, (288), 12 states have internal predecessors, (288), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:26:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:26:36,220 INFO L93 Difference]: Finished difference Result 48606 states and 60257 transitions. [2023-12-25 07:26:36,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 07:26:36,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 24.0) internal successors, (288), 12 states have internal predecessors, (288), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) Word has length 270 [2023-12-25 07:26:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:26:36,283 INFO L225 Difference]: With dead ends: 48606 [2023-12-25 07:26:36,283 INFO L226 Difference]: Without dead ends: 25816 [2023-12-25 07:26:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 532 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-12-25 07:26:36,314 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 326 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:26:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 2071 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:26:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25816 states. [2023-12-25 07:26:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25816 to 24716. [2023-12-25 07:26:41,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24716 states, 18406 states have (on average 1.240410735629686) internal successors, (22831), 18601 states have internal predecessors, (22831), 3858 states have call successors, (3858), 2451 states have call predecessors, (3858), 2451 states have return successors, (3858), 3663 states have call predecessors, (3858), 3858 states have call successors, (3858) [2023-12-25 07:26:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24716 states to 24716 states and 30547 transitions. [2023-12-25 07:26:42,019 INFO L78 Accepts]: Start accepts. Automaton has 24716 states and 30547 transitions. Word has length 270 [2023-12-25 07:26:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:26:42,019 INFO L495 AbstractCegarLoop]: Abstraction has 24716 states and 30547 transitions. [2023-12-25 07:26:42,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.0) internal successors, (288), 12 states have internal predecessors, (288), 7 states have call successors, (55), 6 states have call predecessors, (55), 6 states have return successors, (54), 7 states have call predecessors, (54), 7 states have call successors, (54) [2023-12-25 07:26:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 24716 states and 30547 transitions. [2023-12-25 07:26:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-25 07:26:42,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:26:42,030 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:26:42,036 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 (67)] Ended with exit code 0 [2023-12-25 07:26:42,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:26:42,234 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:26:42,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:26:42,234 INFO L85 PathProgramCache]: Analyzing trace with hash 496691981, now seen corresponding path program 1 times [2023-12-25 07:26:42,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:26:42,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141724943] [2023-12-25 07:26:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:26:42,235 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 [2023-12-25 07:26:42,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:26:42,236 INFO L229 MonitoredProcess]: Starting monitored process 68 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) [2023-12-25 07:26:42,237 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 (68)] Waiting until timeout for monitored process [2023-12-25 07:26:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:26:42,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:26:42,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:26:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 165 proven. 162 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:26:42,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:26:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 60 proven. 31 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2023-12-25 07:26:42,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:26:42,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141724943] [2023-12-25 07:26:42,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141724943] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:26:42,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:26:42,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-25 07:26:42,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232427527] [2023-12-25 07:26:42,910 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:26:42,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:26:42,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:26:42,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:26:42,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:26:42,912 INFO L87 Difference]: Start difference. First operand 24716 states and 30547 transitions. Second operand has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 7 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:26:49,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:26:49,950 INFO L93 Difference]: Finished difference Result 52832 states and 65721 transitions. [2023-12-25 07:26:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 07:26:49,951 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 7 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 271 [2023-12-25 07:26:49,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:26:50,029 INFO L225 Difference]: With dead ends: 52832 [2023-12-25 07:26:50,030 INFO L226 Difference]: Without dead ends: 29238 [2023-12-25 07:26:50,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 536 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2023-12-25 07:26:50,062 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 594 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:26:50,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1648 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:26:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29238 states. [2023-12-25 07:26:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29238 to 29085. [2023-12-25 07:26:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29085 states, 21751 states have (on average 1.2428394096823134) internal successors, (27033), 21976 states have internal predecessors, (27033), 4481 states have call successors, (4481), 2852 states have call predecessors, (4481), 2852 states have return successors, (4481), 4256 states have call predecessors, (4481), 4481 states have call successors, (4481) [2023-12-25 07:26:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29085 states to 29085 states and 35995 transitions. [2023-12-25 07:26:57,281 INFO L78 Accepts]: Start accepts. Automaton has 29085 states and 35995 transitions. Word has length 271 [2023-12-25 07:26:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:26:57,282 INFO L495 AbstractCegarLoop]: Abstraction has 29085 states and 35995 transitions. [2023-12-25 07:26:57,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 7 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:26:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 29085 states and 35995 transitions. [2023-12-25 07:26:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-25 07:26:57,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:26:57,292 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:26:57,295 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 (68)] Forceful destruction successful, exit code 0 [2023-12-25 07:26:57,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:26:57,493 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:26:57,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:26:57,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1639412055, now seen corresponding path program 1 times [2023-12-25 07:26:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:26:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552502409] [2023-12-25 07:26:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:26:57,494 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 [2023-12-25 07:26:57,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:26:57,495 INFO L229 MonitoredProcess]: Starting monitored process 69 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) [2023-12-25 07:26:57,495 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 (69)] Waiting until timeout for monitored process [2023-12-25 07:26:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:26:57,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-25 07:26:57,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:26:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 185 proven. 136 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-25 07:26:58,586 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:26:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 50 proven. 41 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-25 07:26:59,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:26:59,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552502409] [2023-12-25 07:26:59,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552502409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:26:59,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:26:59,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-12-25 07:26:59,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773429824] [2023-12-25 07:26:59,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:26:59,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-25 07:26:59,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:26:59,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-25 07:26:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:26:59,114 INFO L87 Difference]: Start difference. First operand 29085 states and 35995 transitions. Second operand has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:27:08,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:27:08,029 INFO L93 Difference]: Finished difference Result 57035 states and 70782 transitions. [2023-12-25 07:27:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 07:27:08,030 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) Word has length 272 [2023-12-25 07:27:08,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:27:08,103 INFO L225 Difference]: With dead ends: 57035 [2023-12-25 07:27:08,103 INFO L226 Difference]: Without dead ends: 29072 [2023-12-25 07:27:08,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 530 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=459, Invalid=2403, Unknown=0, NotChecked=0, Total=2862 [2023-12-25 07:27:08,141 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1640 mSDsluCounter, 5625 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 3958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:27:08,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 6317 Invalid, 3958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-25 07:27:08,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29072 states. [2023-12-25 07:27:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29072 to 28354. [2023-12-25 07:27:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28354 states, 21225 states have (on average 1.2417432273262663) internal successors, (26356), 21443 states have internal predecessors, (26356), 4352 states have call successors, (4352), 2776 states have call predecessors, (4352), 2776 states have return successors, (4352), 4134 states have call predecessors, (4352), 4352 states have call successors, (4352) [2023-12-25 07:27:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28354 states to 28354 states and 35060 transitions. [2023-12-25 07:27:14,663 INFO L78 Accepts]: Start accepts. Automaton has 28354 states and 35060 transitions. Word has length 272 [2023-12-25 07:27:14,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:27:14,663 INFO L495 AbstractCegarLoop]: Abstraction has 28354 states and 35060 transitions. [2023-12-25 07:27:14,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.772727272727273) internal successors, (303), 22 states have internal predecessors, (303), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:27:14,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28354 states and 35060 transitions. [2023-12-25 07:27:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-25 07:27:14,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:27:14,674 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-12-25 07:27:14,677 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 (69)] Ended with exit code 0 [2023-12-25 07:27:14,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:27:14,876 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:27:14,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:27:14,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1545975270, now seen corresponding path program 1 times [2023-12-25 07:27:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:27:14,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140886423] [2023-12-25 07:27:14,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:27:14,877 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 [2023-12-25 07:27:14,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:27:14,878 INFO L229 MonitoredProcess]: Starting monitored process 70 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) [2023-12-25 07:27:14,879 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 (70)] Waiting until timeout for monitored process [2023-12-25 07:27:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:27:15,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:27:15,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:27:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 206 proven. 117 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-25 07:27:15,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:27:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 60 proven. 31 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2023-12-25 07:27:15,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:27:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140886423] [2023-12-25 07:27:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140886423] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:27:15,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:27:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 07:27:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430723899] [2023-12-25 07:27:15,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:27:15,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:27:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:27:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:27:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:27:15,639 INFO L87 Difference]: Start difference. First operand 28354 states and 35060 transitions. Second operand has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:27:22,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:27:22,484 INFO L93 Difference]: Finished difference Result 55472 states and 68781 transitions. [2023-12-25 07:27:22,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:27:22,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 272 [2023-12-25 07:27:22,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:27:22,558 INFO L225 Difference]: With dead ends: 55472 [2023-12-25 07:27:22,559 INFO L226 Difference]: Without dead ends: 28240 [2023-12-25 07:27:22,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 536 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:27:22,593 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 716 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:27:22,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 696 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:27:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28240 states. [2023-12-25 07:27:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28240 to 28197. [2023-12-25 07:27:29,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28197 states, 21105 states have (on average 1.239469320066335) internal successors, (26159), 21322 states have internal predecessors, (26159), 4328 states have call successors, (4328), 2763 states have call predecessors, (4328), 2763 states have return successors, (4328), 4111 states have call predecessors, (4328), 4328 states have call successors, (4328) [2023-12-25 07:27:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28197 states to 28197 states and 34815 transitions. [2023-12-25 07:27:29,289 INFO L78 Accepts]: Start accepts. Automaton has 28197 states and 34815 transitions. Word has length 272 [2023-12-25 07:27:29,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:27:29,290 INFO L495 AbstractCegarLoop]: Abstraction has 28197 states and 34815 transitions. [2023-12-25 07:27:29,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.55555555555556) internal successors, (311), 9 states have internal predecessors, (311), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:27:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 28197 states and 34815 transitions. [2023-12-25 07:27:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-25 07:27:29,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:27:29,298 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:27:29,301 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 (70)] Ended with exit code 0 [2023-12-25 07:27:29,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:27:29,498 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:27:29,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:27:29,499 INFO L85 PathProgramCache]: Analyzing trace with hash -570003726, now seen corresponding path program 1 times [2023-12-25 07:27:29,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:27:29,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674403728] [2023-12-25 07:27:29,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:27:29,499 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 [2023-12-25 07:27:29,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:27:29,500 INFO L229 MonitoredProcess]: Starting monitored process 71 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) [2023-12-25 07:27:29,501 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 (71)] Waiting until timeout for monitored process [2023-12-25 07:27:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:27:29,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:27:29,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:27:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 164 proven. 162 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-25 07:27:30,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:27:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 41 proven. 55 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2023-12-25 07:27:30,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:27:30,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674403728] [2023-12-25 07:27:30,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674403728] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:27:30,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:27:30,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-12-25 07:27:30,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025691057] [2023-12-25 07:27:30,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:27:30,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 07:27:30,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:27:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 07:27:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-12-25 07:27:30,643 INFO L87 Difference]: Start difference. First operand 28197 states and 34815 transitions. Second operand has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 18 states have internal predecessors, (281), 9 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:27:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:27:38,417 INFO L93 Difference]: Finished difference Result 57116 states and 70641 transitions. [2023-12-25 07:27:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 07:27:38,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 18 states have internal predecessors, (281), 9 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 274 [2023-12-25 07:27:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:27:38,501 INFO L225 Difference]: With dead ends: 57116 [2023-12-25 07:27:38,501 INFO L226 Difference]: Without dead ends: 30041 [2023-12-25 07:27:38,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 533 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=750, Unknown=0, NotChecked=0, Total=930 [2023-12-25 07:27:38,537 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 733 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 4270 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:27:38,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 4270 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:27:38,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30041 states. [2023-12-25 07:27:44,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30041 to 26922. [2023-12-25 07:27:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26922 states, 20131 states have (on average 1.2374944116039939) internal successors, (24912), 20338 states have internal predecessors, (24912), 4144 states have call successors, (4144), 2646 states have call predecessors, (4144), 2646 states have return successors, (4144), 3937 states have call predecessors, (4144), 4144 states have call successors, (4144) [2023-12-25 07:27:44,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26922 states to 26922 states and 33200 transitions. [2023-12-25 07:27:44,847 INFO L78 Accepts]: Start accepts. Automaton has 26922 states and 33200 transitions. Word has length 274 [2023-12-25 07:27:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:27:44,847 INFO L495 AbstractCegarLoop]: Abstraction has 26922 states and 33200 transitions. [2023-12-25 07:27:44,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 18 states have internal predecessors, (281), 9 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:27:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 26922 states and 33200 transitions. [2023-12-25 07:27:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-25 07:27:44,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:27:44,856 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:27:44,859 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 (71)] Ended with exit code 0 [2023-12-25 07:27:45,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:27:45,056 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:27:45,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:27:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash 825244081, now seen corresponding path program 1 times [2023-12-25 07:27:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:27:45,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404356033] [2023-12-25 07:27:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:27:45,058 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 [2023-12-25 07:27:45,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:27:45,059 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2023-12-25 07:27:45,060 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 (72)] Waiting until timeout for monitored process [2023-12-25 07:27:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:27:45,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:27:45,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:27:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 205 proven. 100 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 07:27:45,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:27:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 60 proven. 22 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:27:45,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:27:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404356033] [2023-12-25 07:27:45,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404356033] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:27:45,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:27:45,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 07:27:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988013342] [2023-12-25 07:27:45,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:27:45,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:27:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:27:45,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:27:45,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:27:45,759 INFO L87 Difference]: Start difference. First operand 26922 states and 33200 transitions. Second operand has 9 states, 9 states have (on average 34.333333333333336) internal successors, (309), 9 states have internal predecessors, (309), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:27:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:27:51,273 INFO L93 Difference]: Finished difference Result 47391 states and 58420 transitions. [2023-12-25 07:27:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:27:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 34.333333333333336) internal successors, (309), 9 states have internal predecessors, (309), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 276 [2023-12-25 07:27:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:27:51,315 INFO L225 Difference]: With dead ends: 47391 [2023-12-25 07:27:51,316 INFO L226 Difference]: Without dead ends: 21591 [2023-12-25 07:27:51,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 543 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:27:51,340 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 557 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:27:51,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 957 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:27:51,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21591 states. [2023-12-25 07:27:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21591 to 21413. [2023-12-25 07:27:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21413 states, 16112 states have (on average 1.2284011916583912) internal successors, (19792), 16272 states have internal predecessors, (19792), 3202 states have call successors, (3202), 2098 states have call predecessors, (3202), 2098 states have return successors, (3202), 3042 states have call predecessors, (3202), 3202 states have call successors, (3202) [2023-12-25 07:27:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21413 states to 21413 states and 26196 transitions. [2023-12-25 07:27:56,083 INFO L78 Accepts]: Start accepts. Automaton has 21413 states and 26196 transitions. Word has length 276 [2023-12-25 07:27:56,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:27:56,083 INFO L495 AbstractCegarLoop]: Abstraction has 21413 states and 26196 transitions. [2023-12-25 07:27:56,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 34.333333333333336) internal successors, (309), 9 states have internal predecessors, (309), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:27:56,083 INFO L276 IsEmpty]: Start isEmpty. Operand 21413 states and 26196 transitions. [2023-12-25 07:27:56,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-25 07:27:56,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:27:56,091 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:27:56,094 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 (72)] Ended with exit code 0 [2023-12-25 07:27:56,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:27:56,292 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:27:56,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:27:56,292 INFO L85 PathProgramCache]: Analyzing trace with hash 517093913, now seen corresponding path program 1 times [2023-12-25 07:27:56,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:27:56,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519748079] [2023-12-25 07:27:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:27:56,293 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 [2023-12-25 07:27:56,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:27:56,294 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2023-12-25 07:27:56,295 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 (73)] Waiting until timeout for monitored process [2023-12-25 07:27:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:27:56,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:27:56,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:27:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 210 proven. 130 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 07:27:57,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:27:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 78 proven. 21 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-12-25 07:27:57,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:27:57,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519748079] [2023-12-25 07:27:57,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519748079] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:27:57,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:27:57,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 07:27:57,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301685259] [2023-12-25 07:27:57,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:27:57,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 07:27:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:27:57,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 07:27:57,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-25 07:27:57,706 INFO L87 Difference]: Start difference. First operand 21413 states and 26196 transitions. Second operand has 17 states, 17 states have (on average 18.294117647058822) internal successors, (311), 17 states have internal predecessors, (311), 9 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:28:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:28:04,182 INFO L93 Difference]: Finished difference Result 42577 states and 52255 transitions. [2023-12-25 07:28:04,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-25 07:28:04,183 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 18.294117647058822) internal successors, (311), 17 states have internal predecessors, (311), 9 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 278 [2023-12-25 07:28:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:28:04,229 INFO L225 Difference]: With dead ends: 42577 [2023-12-25 07:28:04,229 INFO L226 Difference]: Without dead ends: 22277 [2023-12-25 07:28:04,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=354, Invalid=1452, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 07:28:04,253 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 900 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:28:04,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 3596 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 07:28:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22277 states. [2023-12-25 07:28:09,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22277 to 21894. [2023-12-25 07:28:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21894 states, 16472 states have (on average 1.228812530354541) internal successors, (20241), 16636 states have internal predecessors, (20241), 3276 states have call successors, (3276), 2145 states have call predecessors, (3276), 2145 states have return successors, (3276), 3112 states have call predecessors, (3276), 3276 states have call successors, (3276) [2023-12-25 07:28:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21894 states to 21894 states and 26793 transitions. [2023-12-25 07:28:09,435 INFO L78 Accepts]: Start accepts. Automaton has 21894 states and 26793 transitions. Word has length 278 [2023-12-25 07:28:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:28:09,435 INFO L495 AbstractCegarLoop]: Abstraction has 21894 states and 26793 transitions. [2023-12-25 07:28:09,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 18.294117647058822) internal successors, (311), 17 states have internal predecessors, (311), 9 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:28:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 21894 states and 26793 transitions. [2023-12-25 07:28:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-12-25 07:28:09,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:28:09,442 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:28:09,445 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 (73)] Ended with exit code 0 [2023-12-25 07:28:09,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:28:09,643 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:28:09,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:28:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1029891659, now seen corresponding path program 1 times [2023-12-25 07:28:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:28:09,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571075032] [2023-12-25 07:28:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:28:09,644 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 [2023-12-25 07:28:09,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:28:09,645 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2023-12-25 07:28:09,645 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 (74)] Waiting until timeout for monitored process [2023-12-25 07:28:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:28:09,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 07:28:09,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:28:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 173 proven. 138 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:28:10,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:28:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 58 proven. 26 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:28:11,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:28:11,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571075032] [2023-12-25 07:28:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571075032] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:28:11,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:28:11,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-12-25 07:28:11,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831584322] [2023-12-25 07:28:11,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:28:11,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-25 07:28:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:28:11,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-25 07:28:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-12-25 07:28:11,123 INFO L87 Difference]: Start difference. First operand 21894 states and 26793 transitions. Second operand has 17 states, 17 states have (on average 19.0) internal successors, (323), 17 states have internal predecessors, (323), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:28:17,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:28:17,489 INFO L93 Difference]: Finished difference Result 42693 states and 52398 transitions. [2023-12-25 07:28:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-25 07:28:17,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 19.0) internal successors, (323), 17 states have internal predecessors, (323), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 278 [2023-12-25 07:28:17,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:28:17,551 INFO L225 Difference]: With dead ends: 42693 [2023-12-25 07:28:17,551 INFO L226 Difference]: Without dead ends: 21912 [2023-12-25 07:28:17,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=443, Invalid=1909, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 07:28:17,578 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 1094 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 1670 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:28:17,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 3868 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1670 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-25 07:28:17,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21912 states. [2023-12-25 07:28:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21912 to 21694. [2023-12-25 07:28:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21694 states, 16324 states have (on average 1.2280078412153883) internal successors, (20046), 16486 states have internal predecessors, (20046), 3245 states have call successors, (3245), 2124 states have call predecessors, (3245), 2124 states have return successors, (3245), 3083 states have call predecessors, (3245), 3245 states have call successors, (3245) [2023-12-25 07:28:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21694 states to 21694 states and 26536 transitions. [2023-12-25 07:28:22,453 INFO L78 Accepts]: Start accepts. Automaton has 21694 states and 26536 transitions. Word has length 278 [2023-12-25 07:28:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:28:22,454 INFO L495 AbstractCegarLoop]: Abstraction has 21694 states and 26536 transitions. [2023-12-25 07:28:22,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 19.0) internal successors, (323), 17 states have internal predecessors, (323), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:28:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 21694 states and 26536 transitions. [2023-12-25 07:28:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-25 07:28:22,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:28:22,461 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:28:22,464 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 (74)] Ended with exit code 0 [2023-12-25 07:28:22,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:28:22,662 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:28:22,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:28:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1498644031, now seen corresponding path program 1 times [2023-12-25 07:28:22,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:28:22,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123940872] [2023-12-25 07:28:22,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:28:22,663 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 [2023-12-25 07:28:22,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:28:22,664 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2023-12-25 07:28:22,664 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 (75)] Waiting until timeout for monitored process [2023-12-25 07:28:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:28:22,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-25 07:28:22,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:28:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 199 proven. 135 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-25 07:28:24,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:28:25,662 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 63 proven. 40 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-25 07:28:25,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:28:25,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123940872] [2023-12-25 07:28:25,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123940872] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:28:25,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:28:25,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-12-25 07:28:25,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376792455] [2023-12-25 07:28:25,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:28:25,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 07:28:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:28:25,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 07:28:25,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2023-12-25 07:28:25,665 INFO L87 Difference]: Start difference. First operand 21694 states and 26536 transitions. Second operand has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:28:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:28:38,230 INFO L93 Difference]: Finished difference Result 45271 states and 55545 transitions. [2023-12-25 07:28:38,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-12-25 07:28:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) Word has length 280 [2023-12-25 07:28:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:28:38,279 INFO L225 Difference]: With dead ends: 45271 [2023-12-25 07:28:38,279 INFO L226 Difference]: Without dead ends: 24690 [2023-12-25 07:28:38,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3380 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1482, Invalid=10290, Unknown=0, NotChecked=0, Total=11772 [2023-12-25 07:28:38,301 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 1705 mSDsluCounter, 9694 mSDsCounter, 0 mSdLazyCounter, 6251 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 10413 SdHoareTripleChecker+Invalid, 6805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 6251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:28:38,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 10413 Invalid, 6805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 6251 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 07:28:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24690 states. [2023-12-25 07:28:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24690 to 22825. [2023-12-25 07:28:43,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22825 states, 17149 states have (on average 1.2298676307656422) internal successors, (21091), 17319 states have internal predecessors, (21091), 3438 states have call successors, (3438), 2237 states have call predecessors, (3438), 2237 states have return successors, (3438), 3268 states have call predecessors, (3438), 3438 states have call successors, (3438) [2023-12-25 07:28:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22825 states to 22825 states and 27967 transitions. [2023-12-25 07:28:43,636 INFO L78 Accepts]: Start accepts. Automaton has 22825 states and 27967 transitions. Word has length 280 [2023-12-25 07:28:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:28:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 22825 states and 27967 transitions. [2023-12-25 07:28:43,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:28:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 22825 states and 27967 transitions. [2023-12-25 07:28:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-25 07:28:43,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:28:43,644 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:28:43,647 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 (75)] Ended with exit code 0 [2023-12-25 07:28:43,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:28:43,845 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:28:43,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:28:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1896941729, now seen corresponding path program 1 times [2023-12-25 07:28:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:28:43,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068801328] [2023-12-25 07:28:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:28:43,846 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 [2023-12-25 07:28:43,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:28:43,847 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2023-12-25 07:28:43,847 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 (76)] Waiting until timeout for monitored process [2023-12-25 07:28:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:28:44,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:28:44,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:28:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 196 proven. 104 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-25 07:28:44,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:28:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 58 proven. 29 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-12-25 07:28:44,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:28:44,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068801328] [2023-12-25 07:28:44,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068801328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:28:44,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:28:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 07:28:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903340880] [2023-12-25 07:28:44,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:28:44,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:28:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:28:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:28:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:28:44,556 INFO L87 Difference]: Start difference. First operand 22825 states and 27967 transitions. Second operand has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:28:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:28:49,780 INFO L93 Difference]: Finished difference Result 43524 states and 53639 transitions. [2023-12-25 07:28:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 07:28:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 279 [2023-12-25 07:28:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:28:49,838 INFO L225 Difference]: With dead ends: 43524 [2023-12-25 07:28:49,839 INFO L226 Difference]: Without dead ends: 21812 [2023-12-25 07:28:49,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 550 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:28:49,867 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 790 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:28:49,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 847 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:28:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21812 states. [2023-12-25 07:28:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21812 to 21295. [2023-12-25 07:28:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21295 states, 16001 states have (on average 1.234297856383976) internal successors, (19750), 16155 states have internal predecessors, (19750), 3224 states have call successors, (3224), 2069 states have call predecessors, (3224), 2069 states have return successors, (3224), 3070 states have call predecessors, (3224), 3224 states have call successors, (3224) [2023-12-25 07:28:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21295 states to 21295 states and 26198 transitions. [2023-12-25 07:28:54,912 INFO L78 Accepts]: Start accepts. Automaton has 21295 states and 26198 transitions. Word has length 279 [2023-12-25 07:28:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:28:54,912 INFO L495 AbstractCegarLoop]: Abstraction has 21295 states and 26198 transitions. [2023-12-25 07:28:54,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.0) internal successors, (315), 9 states have internal predecessors, (315), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:28:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 21295 states and 26198 transitions. [2023-12-25 07:28:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-25 07:28:54,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:28:54,919 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:28:54,922 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 (76)] Ended with exit code 0 [2023-12-25 07:28:55,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:28:55,120 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:28:55,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:28:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1035072590, now seen corresponding path program 1 times [2023-12-25 07:28:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:28:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431793428] [2023-12-25 07:28:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:28:55,121 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 [2023-12-25 07:28:55,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:28:55,122 INFO L229 MonitoredProcess]: Starting monitored process 77 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) [2023-12-25 07:28:55,125 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 (77)] Waiting until timeout for monitored process [2023-12-25 07:28:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:28:55,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:28:55,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:28:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 202 proven. 103 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-25 07:28:55,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:28:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 57 proven. 25 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:28:55,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:28:55,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431793428] [2023-12-25 07:28:55,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431793428] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:28:55,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:28:55,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-25 07:28:55,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634617952] [2023-12-25 07:28:55,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:28:55,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 07:28:55,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:28:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 07:28:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-25 07:28:55,843 INFO L87 Difference]: Start difference. First operand 21295 states and 26198 transitions. Second operand has 9 states, 9 states have (on average 35.22222222222222) internal successors, (317), 9 states have internal predecessors, (317), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:29:00,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:29:00,653 INFO L93 Difference]: Finished difference Result 40405 states and 49845 transitions. [2023-12-25 07:29:00,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 07:29:00,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.22222222222222) internal successors, (317), 9 states have internal predecessors, (317), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 279 [2023-12-25 07:29:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:29:00,705 INFO L225 Difference]: With dead ends: 40405 [2023-12-25 07:29:00,706 INFO L226 Difference]: Without dead ends: 20214 [2023-12-25 07:29:00,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 550 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-12-25 07:29:00,735 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 551 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:29:00,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 733 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:29:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20214 states. [2023-12-25 07:29:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20214 to 20073. [2023-12-25 07:29:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 15099 states have (on average 1.2313398238293927) internal successors, (18592), 15244 states have internal predecessors, (18592), 3020 states have call successors, (3020), 1953 states have call predecessors, (3020), 1953 states have return successors, (3020), 2875 states have call predecessors, (3020), 3020 states have call successors, (3020) [2023-12-25 07:29:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 24632 transitions. [2023-12-25 07:29:05,542 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 24632 transitions. Word has length 279 [2023-12-25 07:29:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:29:05,542 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 24632 transitions. [2023-12-25 07:29:05,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.22222222222222) internal successors, (317), 9 states have internal predecessors, (317), 7 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:29:05,543 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 24632 transitions. [2023-12-25 07:29:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-25 07:29:05,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:29:05,549 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:29:05,553 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 (77)] Forceful destruction successful, exit code 0 [2023-12-25 07:29:05,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:29:05,751 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:29:05,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:29:05,751 INFO L85 PathProgramCache]: Analyzing trace with hash 744749426, now seen corresponding path program 1 times [2023-12-25 07:29:05,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:29:05,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536153270] [2023-12-25 07:29:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:29:05,752 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 [2023-12-25 07:29:05,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:29:05,753 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2023-12-25 07:29:05,753 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 (78)] Waiting until timeout for monitored process [2023-12-25 07:29:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:29:05,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-25 07:29:05,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:29:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 195 proven. 139 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-25 07:29:07,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:29:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 59 proven. 44 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-25 07:29:08,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:29:08,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536153270] [2023-12-25 07:29:08,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536153270] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:29:08,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:29:08,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-12-25 07:29:08,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76544541] [2023-12-25 07:29:08,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:29:08,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-25 07:29:08,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:29:08,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-25 07:29:08,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2023-12-25 07:29:08,735 INFO L87 Difference]: Start difference. First operand 20073 states and 24632 transitions. Second operand has 31 states, 31 states have (on average 10.193548387096774) internal successors, (316), 31 states have internal predecessors, (316), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:29:21,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:29:21,874 INFO L93 Difference]: Finished difference Result 39721 states and 48889 transitions. [2023-12-25 07:29:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-25 07:29:21,875 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 10.193548387096774) internal successors, (316), 31 states have internal predecessors, (316), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) Word has length 281 [2023-12-25 07:29:21,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:29:21,918 INFO L225 Difference]: With dead ends: 39721 [2023-12-25 07:29:21,919 INFO L226 Difference]: Without dead ends: 20752 [2023-12-25 07:29:21,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4398 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1968, Invalid=12794, Unknown=0, NotChecked=0, Total=14762 [2023-12-25 07:29:21,943 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 1295 mSDsluCounter, 11581 mSDsCounter, 0 mSdLazyCounter, 7698 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 12470 SdHoareTripleChecker+Invalid, 8024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 7698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:29:21,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 12470 Invalid, 8024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 7698 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 07:29:21,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20752 states. [2023-12-25 07:29:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20752 to 20277. [2023-12-25 07:29:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20277 states, 15261 states have (on average 1.2316361968416225) internal successors, (18796), 15408 states have internal predecessors, (18796), 3045 states have call successors, (3045), 1970 states have call predecessors, (3045), 1970 states have return successors, (3045), 2898 states have call predecessors, (3045), 3045 states have call successors, (3045) [2023-12-25 07:29:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20277 states to 20277 states and 24886 transitions. [2023-12-25 07:29:26,825 INFO L78 Accepts]: Start accepts. Automaton has 20277 states and 24886 transitions. Word has length 281 [2023-12-25 07:29:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:29:26,825 INFO L495 AbstractCegarLoop]: Abstraction has 20277 states and 24886 transitions. [2023-12-25 07:29:26,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.193548387096774) internal successors, (316), 31 states have internal predecessors, (316), 11 states have call successors, (58), 7 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:29:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 20277 states and 24886 transitions. [2023-12-25 07:29:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-12-25 07:29:26,832 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:29:26,832 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2023-12-25 07:29:26,836 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 (78)] Forceful destruction successful, exit code 0 [2023-12-25 07:29:27,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:29:27,033 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:29:27,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:29:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 298589301, now seen corresponding path program 1 times [2023-12-25 07:29:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:29:27,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304470017] [2023-12-25 07:29:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:29:27,034 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 [2023-12-25 07:29:27,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:29:27,035 INFO L229 MonitoredProcess]: Starting monitored process 79 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) [2023-12-25 07:29:27,038 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 (79)] Waiting until timeout for monitored process [2023-12-25 07:29:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:29:27,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:29:27,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:29:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 202 proven. 107 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:29:27,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:29:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 39 proven. 43 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:29:27,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:29:27,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304470017] [2023-12-25 07:29:27,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304470017] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:29:27,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:29:27,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-25 07:29:27,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684055077] [2023-12-25 07:29:27,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:29:27,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:29:27,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:29:27,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:29:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:29:27,870 INFO L87 Difference]: Start difference. First operand 20277 states and 24886 transitions. Second operand has 14 states, 14 states have (on average 22.928571428571427) internal successors, (321), 14 states have internal predecessors, (321), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:29:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:29:33,617 INFO L93 Difference]: Finished difference Result 40156 states and 49498 transitions. [2023-12-25 07:29:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-25 07:29:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 22.928571428571427) internal successors, (321), 14 states have internal predecessors, (321), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) Word has length 280 [2023-12-25 07:29:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:29:33,662 INFO L225 Difference]: With dead ends: 40156 [2023-12-25 07:29:33,662 INFO L226 Difference]: Without dead ends: 20983 [2023-12-25 07:29:33,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2023-12-25 07:29:33,683 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 1038 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:29:33,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 2171 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:29:33,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20983 states. [2023-12-25 07:29:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20983 to 20642. [2023-12-25 07:29:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20642 states, 15530 states have (on average 1.2330972311654862) internal successors, (19150), 15682 states have internal predecessors, (19150), 3108 states have call successors, (3108), 2003 states have call predecessors, (3108), 2003 states have return successors, (3108), 2956 states have call predecessors, (3108), 3108 states have call successors, (3108) [2023-12-25 07:29:38,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20642 states to 20642 states and 25366 transitions. [2023-12-25 07:29:38,661 INFO L78 Accepts]: Start accepts. Automaton has 20642 states and 25366 transitions. Word has length 280 [2023-12-25 07:29:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:29:38,662 INFO L495 AbstractCegarLoop]: Abstraction has 20642 states and 25366 transitions. [2023-12-25 07:29:38,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 22.928571428571427) internal successors, (321), 14 states have internal predecessors, (321), 9 states have call successors, (57), 6 states have call predecessors, (57), 6 states have return successors, (56), 9 states have call predecessors, (56), 9 states have call successors, (56) [2023-12-25 07:29:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 20642 states and 25366 transitions. [2023-12-25 07:29:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2023-12-25 07:29:38,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:29:38,668 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:29:38,671 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 (79)] Ended with exit code 0 [2023-12-25 07:29:38,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:29:38,868 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:29:38,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:29:38,869 INFO L85 PathProgramCache]: Analyzing trace with hash -196324611, now seen corresponding path program 1 times [2023-12-25 07:29:38,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:29:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782222495] [2023-12-25 07:29:38,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:29:38,869 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 [2023-12-25 07:29:38,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:29:38,870 INFO L229 MonitoredProcess]: Starting monitored process 80 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) [2023-12-25 07:29:38,871 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 (80)] Waiting until timeout for monitored process [2023-12-25 07:29:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:29:39,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:29:39,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:29:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-12-25 07:29:39,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:29:39,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:29:39,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782222495] [2023-12-25 07:29:39,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782222495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:29:39,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:29:39,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:29:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483865506] [2023-12-25 07:29:39,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:29:39,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:29:39,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:29:39,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:29:39,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:29:39,074 INFO L87 Difference]: Start difference. First operand 20642 states and 25366 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-25 07:29:43,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:29:43,820 INFO L93 Difference]: Finished difference Result 39924 states and 49305 transitions. [2023-12-25 07:29:43,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:29:43,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 281 [2023-12-25 07:29:43,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:29:43,867 INFO L225 Difference]: With dead ends: 39924 [2023-12-25 07:29:43,867 INFO L226 Difference]: Without dead ends: 20386 [2023-12-25 07:29:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:29:43,887 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:29:43,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 685 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:29:43,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20386 states. [2023-12-25 07:29:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20386 to 20386. [2023-12-25 07:29:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20386 states, 15402 states have (on average 1.2101025840799897) internal successors, (18638), 15554 states have internal predecessors, (18638), 2980 states have call successors, (2980), 2003 states have call predecessors, (2980), 2003 states have return successors, (2980), 2828 states have call predecessors, (2980), 2980 states have call successors, (2980) [2023-12-25 07:29:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20386 states to 20386 states and 24598 transitions. [2023-12-25 07:29:48,723 INFO L78 Accepts]: Start accepts. Automaton has 20386 states and 24598 transitions. Word has length 281 [2023-12-25 07:29:48,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:29:48,723 INFO L495 AbstractCegarLoop]: Abstraction has 20386 states and 24598 transitions. [2023-12-25 07:29:48,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-25 07:29:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 20386 states and 24598 transitions. [2023-12-25 07:29:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-12-25 07:29:48,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:29:48,729 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:29:48,732 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 (80)] Ended with exit code 0 [2023-12-25 07:29:48,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:29:48,929 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:29:48,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:29:48,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1988001683, now seen corresponding path program 1 times [2023-12-25 07:29:48,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:29:48,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373530165] [2023-12-25 07:29:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:29:48,930 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 [2023-12-25 07:29:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:29:48,931 INFO L229 MonitoredProcess]: Starting monitored process 81 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) [2023-12-25 07:29:48,932 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 (81)] Waiting until timeout for monitored process [2023-12-25 07:29:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:29:49,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:29:49,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:29:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 18 proven. 296 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:29:49,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:29:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 35 proven. 52 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:29:49,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:29:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373530165] [2023-12-25 07:29:49,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373530165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:29:49,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:29:49,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-25 07:29:49,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87566221] [2023-12-25 07:29:49,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:29:49,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:29:49,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:29:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:29:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:29:49,695 INFO L87 Difference]: Start difference. First operand 20386 states and 24598 transitions. Second operand has 12 states, 12 states have (on average 23.583333333333332) internal successors, (283), 12 states have internal predecessors, (283), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:29:55,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:29:55,515 INFO L93 Difference]: Finished difference Result 41970 states and 50885 transitions. [2023-12-25 07:29:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:29:55,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.583333333333332) internal successors, (283), 12 states have internal predecessors, (283), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 282 [2023-12-25 07:29:55,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:29:55,563 INFO L225 Difference]: With dead ends: 41970 [2023-12-25 07:29:55,563 INFO L226 Difference]: Without dead ends: 22688 [2023-12-25 07:29:55,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 555 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2023-12-25 07:29:55,583 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 813 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:29:55,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2063 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:29:55,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22688 states. [2023-12-25 07:30:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22688 to 21606. [2023-12-25 07:30:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21606 states, 16322 states have (on average 1.2087366744271535) internal successors, (19729), 16485 states have internal predecessors, (19729), 3159 states have call successors, (3159), 2124 states have call predecessors, (3159), 2124 states have return successors, (3159), 2996 states have call predecessors, (3159), 3159 states have call successors, (3159) [2023-12-25 07:30:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21606 states to 21606 states and 26047 transitions. [2023-12-25 07:30:00,734 INFO L78 Accepts]: Start accepts. Automaton has 21606 states and 26047 transitions. Word has length 282 [2023-12-25 07:30:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:30:00,734 INFO L495 AbstractCegarLoop]: Abstraction has 21606 states and 26047 transitions. [2023-12-25 07:30:00,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.583333333333332) internal successors, (283), 12 states have internal predecessors, (283), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:30:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21606 states and 26047 transitions. [2023-12-25 07:30:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-25 07:30:00,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:30:00,740 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-12-25 07:30:00,743 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 (81)] Ended with exit code 0 [2023-12-25 07:30:00,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:30:00,940 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:30:00,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:30:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash -653290163, now seen corresponding path program 1 times [2023-12-25 07:30:00,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:30:00,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765720072] [2023-12-25 07:30:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:30:00,941 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 [2023-12-25 07:30:00,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:30:00,942 INFO L229 MonitoredProcess]: Starting monitored process 82 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) [2023-12-25 07:30:00,942 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 (82)] Waiting until timeout for monitored process [2023-12-25 07:30:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:30:01,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:30:01,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:30:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 179 proven. 143 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:30:02,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:30:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 49 proven. 48 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2023-12-25 07:30:03,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:30:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765720072] [2023-12-25 07:30:03,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765720072] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:30:03,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:30:03,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-12-25 07:30:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807981719] [2023-12-25 07:30:03,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:30:03,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-25 07:30:03,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:30:03,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-25 07:30:03,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=607, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:30:03,368 INFO L87 Difference]: Start difference. First operand 21606 states and 26047 transitions. Second operand has 27 states, 27 states have (on average 12.148148148148149) internal successors, (328), 27 states have internal predecessors, (328), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:30:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:30:11,994 INFO L93 Difference]: Finished difference Result 42775 states and 51706 transitions. [2023-12-25 07:30:11,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:30:11,994 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 12.148148148148149) internal successors, (328), 27 states have internal predecessors, (328), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) Word has length 284 [2023-12-25 07:30:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:30:12,051 INFO L225 Difference]: With dead ends: 42775 [2023-12-25 07:30:12,051 INFO L226 Difference]: Without dead ends: 22273 [2023-12-25 07:30:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=818, Invalid=4438, Unknown=0, NotChecked=0, Total=5256 [2023-12-25 07:30:12,076 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 1319 mSDsluCounter, 5695 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 6374 SdHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:30:12,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 6374 Invalid, 3888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 07:30:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22273 states. [2023-12-25 07:30:17,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22273 to 21768. [2023-12-25 07:30:17,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21768 states, 16448 states have (on average 1.2085359922178989) internal successors, (19878), 16611 states have internal predecessors, (19878), 3180 states have call successors, (3180), 2139 states have call predecessors, (3180), 2139 states have return successors, (3180), 3017 states have call predecessors, (3180), 3180 states have call successors, (3180) [2023-12-25 07:30:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21768 states to 21768 states and 26238 transitions. [2023-12-25 07:30:17,410 INFO L78 Accepts]: Start accepts. Automaton has 21768 states and 26238 transitions. Word has length 284 [2023-12-25 07:30:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:30:17,411 INFO L495 AbstractCegarLoop]: Abstraction has 21768 states and 26238 transitions. [2023-12-25 07:30:17,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.148148148148149) internal successors, (328), 27 states have internal predecessors, (328), 11 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (56), 11 states have call predecessors, (56), 11 states have call successors, (56) [2023-12-25 07:30:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 21768 states and 26238 transitions. [2023-12-25 07:30:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-25 07:30:17,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:30:17,417 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:30:17,420 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 (82)] Ended with exit code 0 [2023-12-25 07:30:17,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:30:17,617 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:30:17,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:30:17,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1375778072, now seen corresponding path program 1 times [2023-12-25 07:30:17,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:30:17,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503559721] [2023-12-25 07:30:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:30:17,618 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 [2023-12-25 07:30:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:30:17,619 INFO L229 MonitoredProcess]: Starting monitored process 83 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) [2023-12-25 07:30:17,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2023-12-25 07:30:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:30:17,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:30:17,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:30:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 22 proven. 292 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-25 07:30:18,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:30:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 35 proven. 52 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2023-12-25 07:30:18,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:30:18,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503559721] [2023-12-25 07:30:18,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503559721] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:30:18,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:30:18,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-12-25 07:30:18,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769571466] [2023-12-25 07:30:18,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:30:18,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:30:18,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:30:18,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:30:18,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:30:18,411 INFO L87 Difference]: Start difference. First operand 21768 states and 26238 transitions. Second operand has 12 states, 12 states have (on average 24.333333333333332) internal successors, (292), 12 states have internal predecessors, (292), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:30:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:30:24,695 INFO L93 Difference]: Finished difference Result 45903 states and 55694 transitions. [2023-12-25 07:30:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 07:30:24,696 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 24.333333333333332) internal successors, (292), 12 states have internal predecessors, (292), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) Word has length 284 [2023-12-25 07:30:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:30:24,750 INFO L225 Difference]: With dead ends: 45903 [2023-12-25 07:30:24,750 INFO L226 Difference]: Without dead ends: 25239 [2023-12-25 07:30:24,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:30:24,774 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 608 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:30:24,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 2314 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:30:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25239 states. [2023-12-25 07:30:30,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25239 to 23517. [2023-12-25 07:30:30,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23517 states, 17806 states have (on average 1.2114455801415254) internal successors, (21571), 17983 states have internal predecessors, (21571), 3415 states have call successors, (3415), 2295 states have call predecessors, (3415), 2295 states have return successors, (3415), 3238 states have call predecessors, (3415), 3415 states have call successors, (3415) [2023-12-25 07:30:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23517 states to 23517 states and 28401 transitions. [2023-12-25 07:30:30,727 INFO L78 Accepts]: Start accepts. Automaton has 23517 states and 28401 transitions. Word has length 284 [2023-12-25 07:30:30,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:30:30,727 INFO L495 AbstractCegarLoop]: Abstraction has 23517 states and 28401 transitions. [2023-12-25 07:30:30,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.333333333333332) internal successors, (292), 12 states have internal predecessors, (292), 8 states have call successors, (57), 7 states have call predecessors, (57), 6 states have return successors, (56), 7 states have call predecessors, (56), 7 states have call successors, (56) [2023-12-25 07:30:30,727 INFO L276 IsEmpty]: Start isEmpty. Operand 23517 states and 28401 transitions. [2023-12-25 07:30:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-25 07:30:30,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:30:30,732 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:30:30,736 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 (83)] Ended with exit code 0 [2023-12-25 07:30:30,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:30:30,933 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:30:30,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:30:30,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1452663195, now seen corresponding path program 1 times [2023-12-25 07:30:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:30:30,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217813119] [2023-12-25 07:30:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:30:30,934 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 [2023-12-25 07:30:30,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:30:30,935 INFO L229 MonitoredProcess]: Starting monitored process 84 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) [2023-12-25 07:30:30,936 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 (84)] Waiting until timeout for monitored process [2023-12-25 07:30:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:30:31,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:30:31,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:30:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 263 proven. 62 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-25 07:30:31,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:30:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 91 proven. 15 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-25 07:30:31,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:30:31,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217813119] [2023-12-25 07:30:31,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217813119] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:30:31,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:30:31,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-25 07:30:31,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402289721] [2023-12-25 07:30:31,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:30:31,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 07:30:31,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:30:31,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 07:30:31,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-25 07:30:31,388 INFO L87 Difference]: Start difference. First operand 23517 states and 28401 transitions. Second operand has 14 states, 14 states have (on average 13.428571428571429) internal successors, (188), 11 states have internal predecessors, (188), 4 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (43), 6 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-25 07:30:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:30:45,089 INFO L93 Difference]: Finished difference Result 77100 states and 91448 transitions. [2023-12-25 07:30:45,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-25 07:30:45,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.428571428571429) internal successors, (188), 11 states have internal predecessors, (188), 4 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (43), 6 states have call predecessors, (43), 3 states have call successors, (43) Word has length 290 [2023-12-25 07:30:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:30:45,227 INFO L225 Difference]: With dead ends: 77100 [2023-12-25 07:30:45,227 INFO L226 Difference]: Without dead ends: 54687 [2023-12-25 07:30:45,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:30:45,260 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 457 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:30:45,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 3436 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:30:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54687 states. [2023-12-25 07:30:57,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54687 to 48178. [2023-12-25 07:30:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48178 states, 36480 states have (on average 1.1837719298245615) internal successors, (43184), 36831 states have internal predecessors, (43184), 6885 states have call successors, (6885), 4812 states have call predecessors, (6885), 4812 states have return successors, (6885), 6534 states have call predecessors, (6885), 6885 states have call successors, (6885) [2023-12-25 07:30:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48178 states to 48178 states and 56954 transitions. [2023-12-25 07:30:58,075 INFO L78 Accepts]: Start accepts. Automaton has 48178 states and 56954 transitions. Word has length 290 [2023-12-25 07:30:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:30:58,075 INFO L495 AbstractCegarLoop]: Abstraction has 48178 states and 56954 transitions. [2023-12-25 07:30:58,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.428571428571429) internal successors, (188), 11 states have internal predecessors, (188), 4 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (43), 6 states have call predecessors, (43), 3 states have call successors, (43) [2023-12-25 07:30:58,075 INFO L276 IsEmpty]: Start isEmpty. Operand 48178 states and 56954 transitions. [2023-12-25 07:30:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-25 07:30:58,173 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:30:58,173 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:30:58,177 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 (84)] Forceful destruction successful, exit code 0 [2023-12-25 07:30:58,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:30:58,373 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:30:58,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:30:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1663380651, now seen corresponding path program 1 times [2023-12-25 07:30:58,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:30:58,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951429935] [2023-12-25 07:30:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:30:58,374 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 [2023-12-25 07:30:58,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:30:58,375 INFO L229 MonitoredProcess]: Starting monitored process 85 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) [2023-12-25 07:30:58,377 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 (85)] Waiting until timeout for monitored process [2023-12-25 07:30:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:30:58,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:30:58,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:30:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-12-25 07:30:58,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:30:58,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:30:58,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951429935] [2023-12-25 07:30:58,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951429935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:30:58,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:30:58,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:30:58,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851038173] [2023-12-25 07:30:58,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:30:58,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:30:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:30:58,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:30:58,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:30:58,583 INFO L87 Difference]: Start difference. First operand 48178 states and 56954 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-25 07:31:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:31:10,144 INFO L93 Difference]: Finished difference Result 94452 states and 111926 transitions. [2023-12-25 07:31:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:31:10,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 298 [2023-12-25 07:31:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:31:10,267 INFO L225 Difference]: With dead ends: 94452 [2023-12-25 07:31:10,267 INFO L226 Difference]: Without dead ends: 47700 [2023-12-25 07:31:10,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:31:10,324 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 7 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:31:10,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 667 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:31:10,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47700 states. [2023-12-25 07:31:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47700 to 47571. [2023-12-25 07:31:22,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47571 states, 36148 states have (on average 1.1647947327652983) internal successors, (42105), 36499 states have internal predecessors, (42105), 6625 states have call successors, (6625), 4797 states have call predecessors, (6625), 4797 states have return successors, (6625), 6274 states have call predecessors, (6625), 6625 states have call successors, (6625) [2023-12-25 07:31:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47571 states to 47571 states and 55355 transitions. [2023-12-25 07:31:22,830 INFO L78 Accepts]: Start accepts. Automaton has 47571 states and 55355 transitions. Word has length 298 [2023-12-25 07:31:22,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:31:22,830 INFO L495 AbstractCegarLoop]: Abstraction has 47571 states and 55355 transitions. [2023-12-25 07:31:22,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-25 07:31:22,831 INFO L276 IsEmpty]: Start isEmpty. Operand 47571 states and 55355 transitions. [2023-12-25 07:31:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-25 07:31:22,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:31:22,844 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2023-12-25 07:31:22,851 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 (85)] Forceful destruction successful, exit code 0 [2023-12-25 07:31:23,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:31:23,045 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:31:23,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:31:23,046 INFO L85 PathProgramCache]: Analyzing trace with hash 946974560, now seen corresponding path program 1 times [2023-12-25 07:31:23,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:31:23,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140232339] [2023-12-25 07:31:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:31:23,047 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 [2023-12-25 07:31:23,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:31:23,048 INFO L229 MonitoredProcess]: Starting monitored process 86 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) [2023-12-25 07:31:23,049 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 (86)] Waiting until timeout for monitored process [2023-12-25 07:31:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:31:23,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:31:23,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:31:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 34 proven. 437 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2023-12-25 07:31:23,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:31:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 53 proven. 90 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-12-25 07:31:24,156 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:31:24,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140232339] [2023-12-25 07:31:24,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140232339] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:31:24,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:31:24,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 24 [2023-12-25 07:31:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058879505] [2023-12-25 07:31:24,157 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:31:24,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-25 07:31:24,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:31:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-25 07:31:24,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2023-12-25 07:31:24,158 INFO L87 Difference]: Start difference. First operand 47571 states and 55355 transitions. Second operand has 24 states, 22 states have (on average 14.409090909090908) internal successors, (317), 20 states have internal predecessors, (317), 11 states have call successors, (65), 7 states have call predecessors, (65), 9 states have return successors, (63), 12 states have call predecessors, (63), 10 states have call successors, (63) [2023-12-25 07:31:46,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:31:46,529 INFO L93 Difference]: Finished difference Result 128331 states and 147524 transitions. [2023-12-25 07:31:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-25 07:31:46,530 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 14.409090909090908) internal successors, (317), 20 states have internal predecessors, (317), 11 states have call successors, (65), 7 states have call predecessors, (65), 9 states have return successors, (63), 12 states have call predecessors, (63), 10 states have call successors, (63) Word has length 314 [2023-12-25 07:31:46,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:31:46,800 INFO L225 Difference]: With dead ends: 128331 [2023-12-25 07:31:46,801 INFO L226 Difference]: Without dead ends: 82186 [2023-12-25 07:31:46,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 618 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=631, Invalid=4199, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:31:46,882 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 1600 mSDsluCounter, 8215 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 9119 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:31:46,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 9119 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 07:31:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82186 states. [2023-12-25 07:32:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82186 to 66058. [2023-12-25 07:32:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66058 states, 50240 states have (on average 1.1477308917197453) internal successors, (57662), 50698 states have internal predecessors, (57662), 9106 states have call successors, (9106), 6711 states have call predecessors, (9106), 6711 states have return successors, (9106), 8648 states have call predecessors, (9106), 9106 states have call successors, (9106) [2023-12-25 07:32:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66058 states to 66058 states and 75874 transitions. [2023-12-25 07:32:04,138 INFO L78 Accepts]: Start accepts. Automaton has 66058 states and 75874 transitions. Word has length 314 [2023-12-25 07:32:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:32:04,139 INFO L495 AbstractCegarLoop]: Abstraction has 66058 states and 75874 transitions. [2023-12-25 07:32:04,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 14.409090909090908) internal successors, (317), 20 states have internal predecessors, (317), 11 states have call successors, (65), 7 states have call predecessors, (65), 9 states have return successors, (63), 12 states have call predecessors, (63), 10 states have call successors, (63) [2023-12-25 07:32:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 66058 states and 75874 transitions. [2023-12-25 07:32:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-25 07:32:04,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:32:04,154 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-25 07:32:04,157 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 (86)] Ended with exit code 0 [2023-12-25 07:32:04,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:32:04,355 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:32:04,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:32:04,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1852322464, now seen corresponding path program 1 times [2023-12-25 07:32:04,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:32:04,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072239456] [2023-12-25 07:32:04,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:32:04,356 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 [2023-12-25 07:32:04,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:32:04,357 INFO L229 MonitoredProcess]: Starting monitored process 87 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) [2023-12-25 07:32:04,357 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 (87)] Waiting until timeout for monitored process [2023-12-25 07:32:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:32:04,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 07:32:04,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:32:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 330 proven. 60 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-12-25 07:32:04,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:32:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 90 proven. 32 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-12-25 07:32:04,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:32:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072239456] [2023-12-25 07:32:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072239456] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:32:04,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:32:04,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-12-25 07:32:04,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676247605] [2023-12-25 07:32:04,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:32:04,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 07:32:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:32:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 07:32:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-25 07:32:04,841 INFO L87 Difference]: Start difference. First operand 66058 states and 75874 transitions. Second operand has 10 states, 10 states have (on average 23.7) internal successors, (237), 9 states have internal predecessors, (237), 6 states have call successors, (57), 5 states have call predecessors, (57), 7 states have return successors, (55), 7 states have call predecessors, (55), 6 states have call successors, (55) [2023-12-25 07:32:22,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:32:22,669 INFO L93 Difference]: Finished difference Result 131101 states and 150671 transitions. [2023-12-25 07:32:22,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:32:22,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.7) internal successors, (237), 9 states have internal predecessors, (237), 6 states have call successors, (57), 5 states have call predecessors, (57), 7 states have return successors, (55), 7 states have call predecessors, (55), 6 states have call successors, (55) Word has length 316 [2023-12-25 07:32:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:32:22,937 INFO L225 Difference]: With dead ends: 131101 [2023-12-25 07:32:22,938 INFO L226 Difference]: Without dead ends: 66275 [2023-12-25 07:32:23,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-12-25 07:32:23,016 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 795 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:32:23,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2078 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:32:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66275 states. [2023-12-25 07:32:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66275 to 66058. [2023-12-25 07:32:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66058 states, 50240 states have (on average 1.143391719745223) internal successors, (57444), 50698 states have internal predecessors, (57444), 9106 states have call successors, (9106), 6711 states have call predecessors, (9106), 6711 states have return successors, (9106), 8648 states have call predecessors, (9106), 9106 states have call successors, (9106) [2023-12-25 07:32:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66058 states to 66058 states and 75656 transitions. [2023-12-25 07:32:41,481 INFO L78 Accepts]: Start accepts. Automaton has 66058 states and 75656 transitions. Word has length 316 [2023-12-25 07:32:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:32:41,481 INFO L495 AbstractCegarLoop]: Abstraction has 66058 states and 75656 transitions. [2023-12-25 07:32:41,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.7) internal successors, (237), 9 states have internal predecessors, (237), 6 states have call successors, (57), 5 states have call predecessors, (57), 7 states have return successors, (55), 7 states have call predecessors, (55), 6 states have call successors, (55) [2023-12-25 07:32:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 66058 states and 75656 transitions. [2023-12-25 07:32:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-25 07:32:41,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:32:41,496 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 8, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2023-12-25 07:32:41,503 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 (87)] Ended with exit code 0 [2023-12-25 07:32:41,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:32:41,697 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:32:41,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:32:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1220216391, now seen corresponding path program 1 times [2023-12-25 07:32:41,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:32:41,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096467654] [2023-12-25 07:32:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:32:41,698 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 [2023-12-25 07:32:41,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:32:41,699 INFO L229 MonitoredProcess]: Starting monitored process 88 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) [2023-12-25 07:32:41,701 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 (88)] Waiting until timeout for monitored process [2023-12-25 07:32:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:32:41,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:32:41,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:32:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2023-12-25 07:32:41,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:32:41,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:32:41,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096467654] [2023-12-25 07:32:41,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1096467654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:32:41,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:32:41,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:32:41,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587869974] [2023-12-25 07:32:41,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:32:41,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:32:41,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:32:41,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:32:41,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:32:41,905 INFO L87 Difference]: Start difference. First operand 66058 states and 75656 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-25 07:32:59,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:32:59,266 INFO L93 Difference]: Finished difference Result 130212 states and 149336 transitions. [2023-12-25 07:32:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:32:59,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 324 [2023-12-25 07:32:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:32:59,454 INFO L225 Difference]: With dead ends: 130212 [2023-12-25 07:32:59,454 INFO L226 Difference]: Without dead ends: 65580 [2023-12-25 07:32:59,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:32:59,534 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 7 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:32:59,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 655 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:32:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65580 states. [2023-12-25 07:33:16,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65580 to 64555. [2023-12-25 07:33:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64555 states, 49263 states have (on average 1.1266873718612347) internal successors, (55504), 49721 states have internal predecessors, (55504), 8703 states have call successors, (8703), 6588 states have call predecessors, (8703), 6588 states have return successors, (8703), 8245 states have call predecessors, (8703), 8703 states have call successors, (8703) [2023-12-25 07:33:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64555 states to 64555 states and 72910 transitions. [2023-12-25 07:33:17,055 INFO L78 Accepts]: Start accepts. Automaton has 64555 states and 72910 transitions. Word has length 324 [2023-12-25 07:33:17,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:33:17,056 INFO L495 AbstractCegarLoop]: Abstraction has 64555 states and 72910 transitions. [2023-12-25 07:33:17,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-25 07:33:17,056 INFO L276 IsEmpty]: Start isEmpty. Operand 64555 states and 72910 transitions. [2023-12-25 07:33:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-25 07:33:17,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:33:17,076 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:33:17,079 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 (88)] Ended with exit code 0 [2023-12-25 07:33:17,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:33:17,279 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:33:17,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:33:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1233877312, now seen corresponding path program 1 times [2023-12-25 07:33:17,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:33:17,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106755633] [2023-12-25 07:33:17,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:33:17,280 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 [2023-12-25 07:33:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:33:17,281 INFO L229 MonitoredProcess]: Starting monitored process 89 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) [2023-12-25 07:33:17,282 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 (89)] Waiting until timeout for monitored process [2023-12-25 07:33:17,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:33:17,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:33:17,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:33:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2023-12-25 07:33:17,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:33:17,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:33:17,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106755633] [2023-12-25 07:33:17,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106755633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:33:17,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:33:17,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:33:17,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786655074] [2023-12-25 07:33:17,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:33:17,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:33:17,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:33:17,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:33:17,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:33:17,494 INFO L87 Difference]: Start difference. First operand 64555 states and 72910 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-25 07:33:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:33:33,854 INFO L93 Difference]: Finished difference Result 127090 states and 143530 transitions. [2023-12-25 07:33:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:33:33,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 340 [2023-12-25 07:33:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:33:34,043 INFO L225 Difference]: With dead ends: 127090 [2023-12-25 07:33:34,043 INFO L226 Difference]: Without dead ends: 63961 [2023-12-25 07:33:34,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:33:34,124 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 6 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:33:34,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 646 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:33:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63961 states. [2023-12-25 07:33:50,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63961 to 62867. [2023-12-25 07:33:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62867 states, 48074 states have (on average 1.1130132712068894) internal successors, (53507), 48462 states have internal predecessors, (53507), 8352 states have call successors, (8352), 6440 states have call predecessors, (8352), 6440 states have return successors, (8352), 7964 states have call predecessors, (8352), 8352 states have call successors, (8352) [2023-12-25 07:33:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62867 states to 62867 states and 70211 transitions. [2023-12-25 07:33:50,817 INFO L78 Accepts]: Start accepts. Automaton has 62867 states and 70211 transitions. Word has length 340 [2023-12-25 07:33:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:33:50,817 INFO L495 AbstractCegarLoop]: Abstraction has 62867 states and 70211 transitions. [2023-12-25 07:33:50,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-25 07:33:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 62867 states and 70211 transitions. [2023-12-25 07:33:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-12-25 07:33:50,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:33:50,838 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-25 07:33:50,841 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 (89)] Ended with exit code 0 [2023-12-25 07:33:51,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:33:51,039 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:33:51,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:33:51,039 INFO L85 PathProgramCache]: Analyzing trace with hash 630209195, now seen corresponding path program 1 times [2023-12-25 07:33:51,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:33:51,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993308536] [2023-12-25 07:33:51,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:33:51,040 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 [2023-12-25 07:33:51,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:33:51,041 INFO L229 MonitoredProcess]: Starting monitored process 90 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) [2023-12-25 07:33:51,042 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 (90)] Waiting until timeout for monitored process [2023-12-25 07:33:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:33:51,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:33:51,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:33:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 300 proven. 267 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-25 07:33:51,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:33:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 125 proven. 71 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-12-25 07:33:51,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:33:51,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993308536] [2023-12-25 07:33:51,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993308536] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:33:51,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:33:51,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-25 07:33:51,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396338581] [2023-12-25 07:33:51,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:33:51,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:33:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:33:51,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:33:51,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:33:51,833 INFO L87 Difference]: Start difference. First operand 62867 states and 70211 transitions. Second operand has 16 states, 16 states have (on average 22.0) internal successors, (352), 14 states have internal predecessors, (352), 8 states have call successors, (68), 5 states have call predecessors, (68), 7 states have return successors, (68), 10 states have call predecessors, (68), 8 states have call successors, (68) [2023-12-25 07:35:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:35:37,746 INFO L93 Difference]: Finished difference Result 455780 states and 511913 transitions. [2023-12-25 07:35:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-25 07:35:37,747 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 22.0) internal successors, (352), 14 states have internal predecessors, (352), 8 states have call successors, (68), 5 states have call predecessors, (68), 7 states have return successors, (68), 10 states have call predecessors, (68), 8 states have call successors, (68) Word has length 345 [2023-12-25 07:35:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:35:39,461 INFO L225 Difference]: With dead ends: 455780 [2023-12-25 07:35:39,461 INFO L226 Difference]: Without dead ends: 394339 [2023-12-25 07:35:39,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1377 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=819, Invalid=4437, Unknown=0, NotChecked=0, Total=5256 [2023-12-25 07:35:39,623 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 1347 mSDsluCounter, 9349 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 10912 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:35:39,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 10912 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 07:35:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394339 states.