/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_lcr.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:41:05,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:41:05,714 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 07:41:05,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:41:05,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:41:05,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:41:05,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:41:05,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:41:05,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:41:05,742 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:41:05,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:41:05,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:41:05,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:41:05,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:41:05,744 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:41:05,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:41:05,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:41:05,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:41:05,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:41:05,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:41:05,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:41:05,746 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:41:05,746 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:41:05,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:41:05,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:41:05,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:41:05,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:41:05,747 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:41:05,748 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:41:05,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:41:05,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:41:05,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:41:05,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:41:05,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:41:05,950 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:41:05,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2023-12-25 07:41:06,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:41:07,153 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:41:07,154 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2023-12-25 07:41:07,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae88c2bf4/39df0ca9f01a495e8990c72573becd2e/FLAG312485797 [2023-12-25 07:41:07,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae88c2bf4/39df0ca9f01a495e8990c72573becd2e [2023-12-25 07:41:07,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:41:07,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:41:07,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:41:07,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:41:07,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:41:07,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ed1f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07, skipping insertion in model container [2023-12-25 07:41:07,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,203 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:41:07,382 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_lcr.5.1.ufo.UNBOUNDED.pals.c[11298,11311] [2023-12-25 07:41:07,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:41:07,396 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:41:07,440 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_lcr.5.1.ufo.UNBOUNDED.pals.c[11298,11311] [2023-12-25 07:41:07,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:41:07,453 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:41:07,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07 WrapperNode [2023-12-25 07:41:07,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:41:07,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:41:07,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:41:07,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:41:07,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,490 INFO L138 Inliner]: procedures = 25, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 315 [2023-12-25 07:41:07,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:41:07,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:41:07,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:41:07,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:41:07,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,515 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 07:41:07,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:41:07,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:41:07,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:41:07,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:41:07,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (1/1) ... [2023-12-25 07:41:07,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:41:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:41:07,581 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 07:41:07,602 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 07:41:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:41:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:41:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:41:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:41:07,701 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:41:07,704 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:41:08,069 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:41:08,103 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:41:08,103 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 07:41:08,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:41:08 BoogieIcfgContainer [2023-12-25 07:41:08,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:41:08,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:41:08,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:41:08,107 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:41:08,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:41:07" (1/3) ... [2023-12-25 07:41:08,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ccee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:41:08, skipping insertion in model container [2023-12-25 07:41:08,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:41:07" (2/3) ... [2023-12-25 07:41:08,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1ccee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:41:08, skipping insertion in model container [2023-12-25 07:41:08,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:41:08" (3/3) ... [2023-12-25 07:41:08,110 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2023-12-25 07:41:08,121 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:41:08,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:41:08,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:41:08,177 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;@3de71390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:41:08,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:41:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 78 states have (on average 1.794871794871795) internal successors, (140), 79 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:41:08,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:08,196 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] [2023-12-25 07:41:08,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:08,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:08,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1979643945, now seen corresponding path program 1 times [2023-12-25 07:41:08,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:08,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80873409] [2023-12-25 07:41:08,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:08,211 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 07:41:08,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:08,213 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 07:41:08,214 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 07:41:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:08,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 07:41:08,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:08,327 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 07:41:08,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:08,328 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:08,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80873409] [2023-12-25 07:41:08,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80873409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:41:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840968979] [2023-12-25 07:41:08,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:08,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 07:41:08,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:08,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 07:41:08,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 07:41:08,358 INFO L87 Difference]: Start difference. First operand has 80 states, 78 states have (on average 1.794871794871795) internal successors, (140), 79 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:08,391 INFO L93 Difference]: Finished difference Result 124 states and 213 transitions. [2023-12-25 07:41:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 07:41:08,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-25 07:41:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:08,400 INFO L225 Difference]: With dead ends: 124 [2023-12-25 07:41:08,400 INFO L226 Difference]: Without dead ends: 78 [2023-12-25 07:41:08,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 07:41:08,405 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:08,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-25 07:41:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-25 07:41:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7532467532467533) internal successors, (135), 77 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 135 transitions. [2023-12-25 07:41:08,428 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 135 transitions. Word has length 20 [2023-12-25 07:41:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:08,428 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 135 transitions. [2023-12-25 07:41:08,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,429 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 135 transitions. [2023-12-25 07:41:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-25 07:41:08,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:08,429 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] [2023-12-25 07:41:08,432 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 (2)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:08,632 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 07:41:08,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:08,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:08,633 INFO L85 PathProgramCache]: Analyzing trace with hash 726975449, now seen corresponding path program 1 times [2023-12-25 07:41:08,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:08,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822681169] [2023-12-25 07:41:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:08,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:08,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:08,635 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 07:41:08,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-25 07:41:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:08,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:08,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:08,734 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 07:41:08,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:08,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822681169] [2023-12-25 07:41:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822681169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:08,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:08,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:41:08,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853672210] [2023-12-25 07:41:08,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:08,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:41:08,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:41:08,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:08,736 INFO L87 Difference]: Start difference. First operand 78 states and 135 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:08,801 INFO L93 Difference]: Finished difference Result 124 states and 207 transitions. [2023-12-25 07:41:08,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:41:08,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-25 07:41:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:08,802 INFO L225 Difference]: With dead ends: 124 [2023-12-25 07:41:08,802 INFO L226 Difference]: Without dead ends: 78 [2023-12-25 07:41:08,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:08,804 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:08,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 362 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-25 07:41:08,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-25 07:41:08,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 104 transitions. [2023-12-25 07:41:08,813 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 104 transitions. Word has length 20 [2023-12-25 07:41:08,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:08,813 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 104 transitions. [2023-12-25 07:41:08,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 104 transitions. [2023-12-25 07:41:08,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-25 07:41:08,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:08,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:08,819 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 07:41:09,018 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 07:41:09,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:09,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:09,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1670705904, now seen corresponding path program 1 times [2023-12-25 07:41:09,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:09,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218713687] [2023-12-25 07:41:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:09,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:09,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:09,021 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 07:41:09,022 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 07:41:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:09,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:09,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:09,676 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 07:41:09,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:09,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218713687] [2023-12-25 07:41:09,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218713687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:09,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:09,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:41:09,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312164442] [2023-12-25 07:41:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:09,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:41:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:41:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:09,689 INFO L87 Difference]: Start difference. First operand 78 states and 104 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:09,834 INFO L93 Difference]: Finished difference Result 336 states and 518 transitions. [2023-12-25 07:41:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:41:09,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-25 07:41:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:09,839 INFO L225 Difference]: With dead ends: 336 [2023-12-25 07:41:09,839 INFO L226 Difference]: Without dead ends: 293 [2023-12-25 07:41:09,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:09,840 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 432 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:09,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 486 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:41:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-25 07:41:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 160. [2023-12-25 07:41:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.490566037735849) internal successors, (237), 159 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:09,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2023-12-25 07:41:09,861 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 50 [2023-12-25 07:41:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:09,862 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2023-12-25 07:41:09,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2023-12-25 07:41:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 07:41:09,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:09,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:09,879 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 07:41:10,067 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 07:41:10,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:10,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:10,068 INFO L85 PathProgramCache]: Analyzing trace with hash 9692384, now seen corresponding path program 1 times [2023-12-25 07:41:10,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:10,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842072038] [2023-12-25 07:41:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:10,068 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 07:41:10,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:10,069 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 07:41:10,071 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 07:41:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:10,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:10,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:10,225 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 07:41:10,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:10,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:10,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842072038] [2023-12-25 07:41:10,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842072038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:10,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:10,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:10,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739695634] [2023-12-25 07:41:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:10,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:10,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:10,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:10,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:10,231 INFO L87 Difference]: Start difference. First operand 160 states and 237 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:10,250 INFO L93 Difference]: Finished difference Result 394 states and 613 transitions. [2023-12-25 07:41:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-25 07:41:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:10,253 INFO L225 Difference]: With dead ends: 394 [2023-12-25 07:41:10,253 INFO L226 Difference]: Without dead ends: 269 [2023-12-25 07:41:10,257 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 07:41:10,258 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 44 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:10,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 158 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:10,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-12-25 07:41:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 264. [2023-12-25 07:41:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.5171102661596958) internal successors, (399), 263 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 399 transitions. [2023-12-25 07:41:10,279 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 399 transitions. Word has length 52 [2023-12-25 07:41:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:10,279 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 399 transitions. [2023-12-25 07:41:10,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 399 transitions. [2023-12-25 07:41:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 07:41:10,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:10,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:10,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:10,490 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 07:41:10,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:10,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash 352913681, now seen corresponding path program 1 times [2023-12-25 07:41:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:10,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249428068] [2023-12-25 07:41:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:10,492 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 07:41:10,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:10,498 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 07:41:10,500 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 07:41:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:10,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:41:10,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:10,585 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 07:41:10,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:10,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249428068] [2023-12-25 07:41:10,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249428068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:10,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:10,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:41:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085391141] [2023-12-25 07:41:10,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:10,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:41:10,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:10,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:41:10,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:10,587 INFO L87 Difference]: Start difference. First operand 264 states and 399 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:10,608 INFO L93 Difference]: Finished difference Result 278 states and 416 transitions. [2023-12-25 07:41:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:41:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-25 07:41:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:10,609 INFO L225 Difference]: With dead ends: 278 [2023-12-25 07:41:10,609 INFO L226 Difference]: Without dead ends: 276 [2023-12-25 07:41:10,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:41:10,610 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:10,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 292 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-12-25 07:41:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 272. [2023-12-25 07:41:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.4981549815498154) internal successors, (406), 271 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 406 transitions. [2023-12-25 07:41:10,617 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 406 transitions. Word has length 53 [2023-12-25 07:41:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:10,617 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 406 transitions. [2023-12-25 07:41:10,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 406 transitions. [2023-12-25 07:41:10,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:10,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:10,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:10,636 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 07:41:10,823 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 07:41:10,823 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:10,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:10,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1123356120, now seen corresponding path program 1 times [2023-12-25 07:41:10,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745545329] [2023-12-25 07:41:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:10,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:10,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:10,825 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 07:41:10,826 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 07:41:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:10,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:10,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:10,931 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 07:41:10,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:10,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:10,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745545329] [2023-12-25 07:41:10,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745545329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:10,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:10,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:10,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363454319] [2023-12-25 07:41:10,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:10,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:10,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:10,933 INFO L87 Difference]: Start difference. First operand 272 states and 406 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:10,947 INFO L93 Difference]: Finished difference Result 722 states and 1106 transitions. [2023-12-25 07:41:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:10,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 07:41:10,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:10,949 INFO L225 Difference]: With dead ends: 722 [2023-12-25 07:41:10,949 INFO L226 Difference]: Without dead ends: 485 [2023-12-25 07:41:10,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 07:41:10,951 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 57 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:10,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 219 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:10,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2023-12-25 07:41:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 483. [2023-12-25 07:41:10,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.5103734439834025) internal successors, (728), 482 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 728 transitions. [2023-12-25 07:41:10,963 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 728 transitions. Word has length 54 [2023-12-25 07:41:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:10,964 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 728 transitions. [2023-12-25 07:41:10,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 728 transitions. [2023-12-25 07:41:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:10,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:10,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:10,981 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 07:41:11,167 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 07:41:11,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:11,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:11,170 INFO L85 PathProgramCache]: Analyzing trace with hash 537643992, now seen corresponding path program 1 times [2023-12-25 07:41:11,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:11,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682368715] [2023-12-25 07:41:11,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:11,171 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 07:41:11,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:11,172 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 07:41:11,172 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 07:41:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:11,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:11,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:11,266 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 07:41:11,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:11,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:11,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682368715] [2023-12-25 07:41:11,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682368715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:11,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:11,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:11,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450215988] [2023-12-25 07:41:11,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:11,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:11,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:11,268 INFO L87 Difference]: Start difference. First operand 483 states and 728 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:11,284 INFO L93 Difference]: Finished difference Result 1331 states and 2030 transitions. [2023-12-25 07:41:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:11,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 07:41:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:11,287 INFO L225 Difference]: With dead ends: 1331 [2023-12-25 07:41:11,287 INFO L226 Difference]: Without dead ends: 883 [2023-12-25 07:41:11,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 07:41:11,288 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 53 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:11,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 215 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2023-12-25 07:41:11,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 881. [2023-12-25 07:41:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 880 states have (on average 1.5045454545454546) internal successors, (1324), 880 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1324 transitions. [2023-12-25 07:41:11,304 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1324 transitions. Word has length 54 [2023-12-25 07:41:11,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:11,304 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1324 transitions. [2023-12-25 07:41:11,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,304 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1324 transitions. [2023-12-25 07:41:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:11,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:11,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:11,319 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 07:41:11,507 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 07:41:11,507 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:11,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1426377432, now seen corresponding path program 1 times [2023-12-25 07:41:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:11,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377663388] [2023-12-25 07:41:11,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:11,508 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 07:41:11,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:11,509 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 07:41:11,515 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 07:41:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:11,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:11,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:11,583 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 07:41:11,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:11,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:11,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377663388] [2023-12-25 07:41:11,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377663388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:11,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:11,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:11,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274429000] [2023-12-25 07:41:11,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:11,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:11,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:11,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:11,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:11,585 INFO L87 Difference]: Start difference. First operand 881 states and 1324 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:11,610 INFO L93 Difference]: Finished difference Result 2477 states and 3734 transitions. [2023-12-25 07:41:11,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:11,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 07:41:11,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:11,615 INFO L225 Difference]: With dead ends: 2477 [2023-12-25 07:41:11,615 INFO L226 Difference]: Without dead ends: 1631 [2023-12-25 07:41:11,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 07:41:11,616 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 51 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:11,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 217 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-25 07:41:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1629. [2023-12-25 07:41:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.4864864864864864) internal successors, (2420), 1628 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2420 transitions. [2023-12-25 07:41:11,658 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2420 transitions. Word has length 54 [2023-12-25 07:41:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:11,658 INFO L495 AbstractCegarLoop]: Abstraction has 1629 states and 2420 transitions. [2023-12-25 07:41:11,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2420 transitions. [2023-12-25 07:41:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 07:41:11,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:11,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:41:11,663 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 07:41:11,861 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 07:41:11,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:11,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1163300056, now seen corresponding path program 1 times [2023-12-25 07:41:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807959480] [2023-12-25 07:41:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:11,862 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 07:41:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:11,863 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 07:41:11,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-25 07:41:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:11,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:11,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:11,941 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 07:41:11,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:11,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:11,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807959480] [2023-12-25 07:41:11,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807959480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:11,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:11,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:11,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965801692] [2023-12-25 07:41:11,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:11,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:11,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:11,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:11,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:11,943 INFO L87 Difference]: Start difference. First operand 1629 states and 2420 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:11,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:11,978 INFO L93 Difference]: Finished difference Result 4625 states and 6854 transitions. [2023-12-25 07:41:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:11,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-25 07:41:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:11,986 INFO L225 Difference]: With dead ends: 4625 [2023-12-25 07:41:11,986 INFO L226 Difference]: Without dead ends: 3031 [2023-12-25 07:41:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 07:41:11,988 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 55 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:11,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 221 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:11,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2023-12-25 07:41:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 3029. [2023-12-25 07:41:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 3028 states have (on average 1.4597093791281375) internal successors, (4420), 3028 states have internal predecessors, (4420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 4420 transitions. [2023-12-25 07:41:12,050 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 4420 transitions. Word has length 54 [2023-12-25 07:41:12,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:12,051 INFO L495 AbstractCegarLoop]: Abstraction has 3029 states and 4420 transitions. [2023-12-25 07:41:12,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,051 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 4420 transitions. [2023-12-25 07:41:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 07:41:12,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:12,051 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, 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 07:41:12,056 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 07:41:12,254 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 07:41:12,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:12,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:12,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1854820259, now seen corresponding path program 1 times [2023-12-25 07:41:12,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210992851] [2023-12-25 07:41:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:12,255 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 07:41:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:12,258 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 07:41:12,261 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 07:41:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:12,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:12,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:12,342 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 07:41:12,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:12,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:12,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210992851] [2023-12-25 07:41:12,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210992851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:12,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:12,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:12,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198929428] [2023-12-25 07:41:12,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:12,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:12,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:12,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:12,343 INFO L87 Difference]: Start difference. First operand 3029 states and 4420 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:12,390 INFO L93 Difference]: Finished difference Result 6108 states and 9034 transitions. [2023-12-25 07:41:12,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:12,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-25 07:41:12,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:12,403 INFO L225 Difference]: With dead ends: 6108 [2023-12-25 07:41:12,403 INFO L226 Difference]: Without dead ends: 4425 [2023-12-25 07:41:12,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 07:41:12,406 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 56 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:12,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 220 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2023-12-25 07:41:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 4423. [2023-12-25 07:41:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4422 states have (on average 1.4559023066485752) internal successors, (6438), 4422 states have internal predecessors, (6438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 6438 transitions. [2023-12-25 07:41:12,521 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 6438 transitions. Word has length 56 [2023-12-25 07:41:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:12,521 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 6438 transitions. [2023-12-25 07:41:12,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 6438 transitions. [2023-12-25 07:41:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-25 07:41:12,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:12,523 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 07:41:12,526 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 07:41:12,725 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 07:41:12,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:12,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash -135946512, now seen corresponding path program 1 times [2023-12-25 07:41:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374187653] [2023-12-25 07:41:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:12,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:12,738 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 07:41:12,739 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 07:41:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:12,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:12,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:12,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:12,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:12,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374187653] [2023-12-25 07:41:12,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374187653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:12,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:12,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:12,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630041035] [2023-12-25 07:41:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:12,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:12,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:12,820 INFO L87 Difference]: Start difference. First operand 4423 states and 6438 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:12,871 INFO L93 Difference]: Finished difference Result 7518 states and 11020 transitions. [2023-12-25 07:41:12,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-25 07:41:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:12,879 INFO L225 Difference]: With dead ends: 7518 [2023-12-25 07:41:12,879 INFO L226 Difference]: Without dead ends: 3132 [2023-12-25 07:41:12,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 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 07:41:12,884 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 50 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:12,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 229 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2023-12-25 07:41:12,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3130. [2023-12-25 07:41:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 1.4602109300095878) internal successors, (4569), 3129 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4569 transitions. [2023-12-25 07:41:12,939 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4569 transitions. Word has length 72 [2023-12-25 07:41:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:12,939 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4569 transitions. [2023-12-25 07:41:12,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4569 transitions. [2023-12-25 07:41:12,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-25 07:41:12,940 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:12,940 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 07:41:12,945 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 07:41:13,142 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 07:41:13,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:13,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash -863872139, now seen corresponding path program 1 times [2023-12-25 07:41:13,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:13,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719277538] [2023-12-25 07:41:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:13,144 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 07:41:13,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:13,145 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 07:41:13,146 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 07:41:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:13,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:13,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:13,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:14,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:14,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719277538] [2023-12-25 07:41:14,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719277538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:14,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:14,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:14,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998610345] [2023-12-25 07:41:14,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:14,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:14,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:14,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:14,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:14,030 INFO L87 Difference]: Start difference. First operand 3130 states and 4569 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:15,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:15,739 INFO L93 Difference]: Finished difference Result 11324 states and 16406 transitions. [2023-12-25 07:41:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 07:41:15,741 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2023-12-25 07:41:15,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:15,776 INFO L225 Difference]: With dead ends: 11324 [2023-12-25 07:41:15,777 INFO L226 Difference]: Without dead ends: 8250 [2023-12-25 07:41:15,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-25 07:41:15,782 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 814 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:15,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 1172 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:41:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2023-12-25 07:41:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 6202. [2023-12-25 07:41:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6202 states, 6201 states have (on average 1.4567005321722304) internal successors, (9033), 6201 states have internal predecessors, (9033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6202 states to 6202 states and 9033 transitions. [2023-12-25 07:41:15,987 INFO L78 Accepts]: Start accepts. Automaton has 6202 states and 9033 transitions. Word has length 74 [2023-12-25 07:41:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:15,987 INFO L495 AbstractCegarLoop]: Abstraction has 6202 states and 9033 transitions. [2023-12-25 07:41:15,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 6202 states and 9033 transitions. [2023-12-25 07:41:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-25 07:41:15,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:15,989 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 07:41:16,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:16,192 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 07:41:16,192 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:16,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1144491709, now seen corresponding path program 1 times [2023-12-25 07:41:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:16,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942298110] [2023-12-25 07:41:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:16,193 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 07:41:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:16,195 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 07:41:16,196 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 07:41:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:16,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:16,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:16,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:16,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:16,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942298110] [2023-12-25 07:41:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942298110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:16,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938562912] [2023-12-25 07:41:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:16,280 INFO L87 Difference]: Start difference. First operand 6202 states and 9033 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:16,337 INFO L93 Difference]: Finished difference Result 9278 states and 13523 transitions. [2023-12-25 07:41:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:16,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-25 07:41:16,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:16,356 INFO L225 Difference]: With dead ends: 9278 [2023-12-25 07:41:16,356 INFO L226 Difference]: Without dead ends: 3132 [2023-12-25 07:41:16,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 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 07:41:16,363 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 44 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:16,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 214 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:16,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2023-12-25 07:41:16,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3130. [2023-12-25 07:41:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 1.4372003835091083) internal successors, (4497), 3129 states have internal predecessors, (4497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 4497 transitions. [2023-12-25 07:41:16,429 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 4497 transitions. Word has length 76 [2023-12-25 07:41:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:16,429 INFO L495 AbstractCegarLoop]: Abstraction has 3130 states and 4497 transitions. [2023-12-25 07:41:16,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:16,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 4497 transitions. [2023-12-25 07:41:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-25 07:41:16,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:16,430 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:16,440 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 07:41:16,635 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 07:41:16,635 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:16,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1489239021, now seen corresponding path program 1 times [2023-12-25 07:41:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:16,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187628048] [2023-12-25 07:41:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:16,636 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 07:41:16,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:16,637 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 07:41:16,640 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 07:41:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:16,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:16,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:17,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:17,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187628048] [2023-12-25 07:41:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187628048] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:17,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:17,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037222271] [2023-12-25 07:41:17,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:17,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:17,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:17,499 INFO L87 Difference]: Start difference. First operand 3130 states and 4497 transitions. Second operand has 16 states, 16 states have (on average 8.875) internal successors, (142), 16 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:18,019 INFO L93 Difference]: Finished difference Result 6312 states and 9050 transitions. [2023-12-25 07:41:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 07:41:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 16 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-25 07:41:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:18,030 INFO L225 Difference]: With dead ends: 6312 [2023-12-25 07:41:18,030 INFO L226 Difference]: Without dead ends: 3238 [2023-12-25 07:41:18,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2023-12-25 07:41:18,035 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 292 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:18,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 538 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:41:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2023-12-25 07:41:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3140. [2023-12-25 07:41:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.4364447276202612) internal successors, (4509), 3139 states have internal predecessors, (4509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4509 transitions. [2023-12-25 07:41:18,102 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4509 transitions. Word has length 77 [2023-12-25 07:41:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:18,102 INFO L495 AbstractCegarLoop]: Abstraction has 3140 states and 4509 transitions. [2023-12-25 07:41:18,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 16 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4509 transitions. [2023-12-25 07:41:18,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-25 07:41:18,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:18,103 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:18,107 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 07:41:18,305 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 07:41:18,305 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:18,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash 370770305, now seen corresponding path program 1 times [2023-12-25 07:41:18,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:18,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741043671] [2023-12-25 07:41:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:18,306 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 07:41:18,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:18,307 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 07:41:18,308 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 07:41:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:18,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:18,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:18,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:18,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:18,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741043671] [2023-12-25 07:41:18,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741043671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:18,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:18,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969784687] [2023-12-25 07:41:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:18,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:18,408 INFO L87 Difference]: Start difference. First operand 3140 states and 4509 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:18,436 INFO L93 Difference]: Finished difference Result 4680 states and 6731 transitions. [2023-12-25 07:41:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:18,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-12-25 07:41:18,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:18,438 INFO L225 Difference]: With dead ends: 4680 [2023-12-25 07:41:18,438 INFO L226 Difference]: Without dead ends: 1606 [2023-12-25 07:41:18,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 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 07:41:18,441 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 40 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:18,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 199 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-12-25 07:41:18,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2023-12-25 07:41:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1603 states have (on average 1.412975670617592) internal successors, (2265), 1603 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2265 transitions. [2023-12-25 07:41:18,468 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2265 transitions. Word has length 79 [2023-12-25 07:41:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:18,468 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2265 transitions. [2023-12-25 07:41:18,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2265 transitions. [2023-12-25 07:41:18,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-25 07:41:18,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:18,469 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:18,476 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 07:41:18,671 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 07:41:18,672 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:18,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:18,672 INFO L85 PathProgramCache]: Analyzing trace with hash -981344087, now seen corresponding path program 1 times [2023-12-25 07:41:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:18,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864339555] [2023-12-25 07:41:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:18,672 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 07:41:18,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:18,673 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 07:41:18,677 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 07:41:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:18,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:18,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:19,231 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:19,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864339555] [2023-12-25 07:41:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864339555] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:19,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:19,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689692129] [2023-12-25 07:41:19,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:19,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:19,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:19,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:19,457 INFO L87 Difference]: Start difference. First operand 1604 states and 2265 transitions. Second operand has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:20,163 INFO L93 Difference]: Finished difference Result 5764 states and 8125 transitions. [2023-12-25 07:41:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:41:20,163 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-12-25 07:41:20,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:20,168 INFO L225 Difference]: With dead ends: 5764 [2023-12-25 07:41:20,168 INFO L226 Difference]: Without dead ends: 4226 [2023-12-25 07:41:20,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:41:20,170 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 606 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:20,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 721 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:41:20,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2023-12-25 07:41:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 3284. [2023-12-25 07:41:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 3283 states have (on average 1.395370088333841) internal successors, (4581), 3283 states have internal predecessors, (4581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 4581 transitions. [2023-12-25 07:41:20,234 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 4581 transitions. Word has length 80 [2023-12-25 07:41:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:20,235 INFO L495 AbstractCegarLoop]: Abstraction has 3284 states and 4581 transitions. [2023-12-25 07:41:20,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 4581 transitions. [2023-12-25 07:41:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-25 07:41:20,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:20,236 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:20,238 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 07:41:20,439 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 07:41:20,439 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:20,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1825088887, now seen corresponding path program 1 times [2023-12-25 07:41:20,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:20,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640345507] [2023-12-25 07:41:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:20,440 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 07:41:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:20,441 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 07:41:20,442 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 07:41:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:20,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:20,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:20,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:20,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:20,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640345507] [2023-12-25 07:41:20,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640345507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:20,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738116158] [2023-12-25 07:41:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:20,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:20,529 INFO L87 Difference]: Start difference. First operand 3284 states and 4581 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:20,564 INFO L93 Difference]: Finished difference Result 4896 states and 6839 transitions. [2023-12-25 07:41:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:20,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-25 07:41:20,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:20,567 INFO L225 Difference]: With dead ends: 4896 [2023-12-25 07:41:20,567 INFO L226 Difference]: Without dead ends: 1678 [2023-12-25 07:41:20,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 07:41:20,570 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 36 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:20,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 184 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-12-25 07:41:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1676. [2023-12-25 07:41:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1675 states have (on average 1.373731343283582) internal successors, (2301), 1675 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2301 transitions. [2023-12-25 07:41:20,601 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2301 transitions. Word has length 82 [2023-12-25 07:41:20,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:20,601 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2301 transitions. [2023-12-25 07:41:20,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2301 transitions. [2023-12-25 07:41:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-25 07:41:20,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:20,603 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:20,607 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 07:41:20,808 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 07:41:20,808 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:20,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash -959158367, now seen corresponding path program 1 times [2023-12-25 07:41:20,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:20,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426350293] [2023-12-25 07:41:20,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:20,809 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 07:41:20,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:20,810 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 07:41:20,811 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 07:41:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:20,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:20,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:21,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:21,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426350293] [2023-12-25 07:41:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426350293] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:21,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413641166] [2023-12-25 07:41:21,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:21,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:21,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:21,668 INFO L87 Difference]: Start difference. First operand 1676 states and 2301 transitions. Second operand has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:22,703 INFO L93 Difference]: Finished difference Result 5836 states and 7993 transitions. [2023-12-25 07:41:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 07:41:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-25 07:41:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:22,710 INFO L225 Difference]: With dead ends: 5836 [2023-12-25 07:41:22,710 INFO L226 Difference]: Without dead ends: 4226 [2023-12-25 07:41:22,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-25 07:41:22,712 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 485 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:22,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 908 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 07:41:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2023-12-25 07:41:22,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 3428. [2023-12-25 07:41:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3427 states have (on average 1.357747300846221) internal successors, (4653), 3427 states have internal predecessors, (4653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:22,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 4653 transitions. [2023-12-25 07:41:22,807 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 4653 transitions. Word has length 83 [2023-12-25 07:41:22,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:22,807 INFO L495 AbstractCegarLoop]: Abstraction has 3428 states and 4653 transitions. [2023-12-25 07:41:22,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:22,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 4653 transitions. [2023-12-25 07:41:22,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-25 07:41:22,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:22,811 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:22,813 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 07:41:23,011 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 07:41:23,012 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:23,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash 748067277, now seen corresponding path program 1 times [2023-12-25 07:41:23,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:23,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314055210] [2023-12-25 07:41:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:23,012 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 07:41:23,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:23,013 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 07:41:23,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-25 07:41:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:23,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:41:23,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:23,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:41:23,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:23,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314055210] [2023-12-25 07:41:23,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314055210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:41:23,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:41:23,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 07:41:23,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99184740] [2023-12-25 07:41:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:41:23,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:41:23,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:23,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:41:23,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:41:23,107 INFO L87 Difference]: Start difference. First operand 3428 states and 4653 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:23,146 INFO L93 Difference]: Finished difference Result 5112 states and 6935 transitions. [2023-12-25 07:41:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:41:23,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-25 07:41:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:23,149 INFO L225 Difference]: With dead ends: 5112 [2023-12-25 07:41:23,149 INFO L226 Difference]: Without dead ends: 1750 [2023-12-25 07:41:23,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 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 07:41:23,151 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:23,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 169 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2023-12-25 07:41:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1748. [2023-12-25 07:41:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1747 states have (on average 1.3308528906697195) internal successors, (2325), 1747 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2325 transitions. [2023-12-25 07:41:23,203 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2325 transitions. Word has length 85 [2023-12-25 07:41:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:23,204 INFO L495 AbstractCegarLoop]: Abstraction has 1748 states and 2325 transitions. [2023-12-25 07:41:23,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2325 transitions. [2023-12-25 07:41:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-25 07:41:23,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:23,206 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] [2023-12-25 07:41:23,221 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 07:41:23,415 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 07:41:23,416 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:23,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1906962467, now seen corresponding path program 1 times [2023-12-25 07:41:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:23,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863515993] [2023-12-25 07:41:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:23,417 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 07:41:23,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:23,427 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 07:41:23,428 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 07:41:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:23,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 07:41:23,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:24,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:24,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:24,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863515993] [2023-12-25 07:41:24,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863515993] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:24,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:24,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-25 07:41:24,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388881821] [2023-12-25 07:41:24,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:24,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-25 07:41:24,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:24,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-25 07:41:24,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-25 07:41:24,302 INFO L87 Difference]: Start difference. First operand 1748 states and 2325 transitions. Second operand has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:24,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:24,996 INFO L93 Difference]: Finished difference Result 4916 states and 6517 transitions. [2023-12-25 07:41:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 07:41:24,997 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-25 07:41:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:25,000 INFO L225 Difference]: With dead ends: 4916 [2023-12-25 07:41:25,000 INFO L226 Difference]: Without dead ends: 3234 [2023-12-25 07:41:25,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-25 07:41:25,001 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 366 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:25,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 768 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:41:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2023-12-25 07:41:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2964. [2023-12-25 07:41:25,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 1.3138710766115425) internal successors, (3893), 2963 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3893 transitions. [2023-12-25 07:41:25,087 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3893 transitions. Word has length 86 [2023-12-25 07:41:25,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:25,087 INFO L495 AbstractCegarLoop]: Abstraction has 2964 states and 3893 transitions. [2023-12-25 07:41:25,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.375) internal successors, (166), 16 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3893 transitions. [2023-12-25 07:41:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-25 07:41:25,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:25,089 INFO L195 NwaCegarLoop]: trace histogram [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 07:41:25,094 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 (21)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:25,291 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 07:41:25,292 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:25,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:25,292 INFO L85 PathProgramCache]: Analyzing trace with hash -185934763, now seen corresponding path program 1 times [2023-12-25 07:41:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:25,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704576365] [2023-12-25 07:41:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:25,292 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 07:41:25,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:25,293 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 07:41:25,294 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 07:41:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:25,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 07:41:25,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:41:25,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 07:41:25,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:25,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704576365] [2023-12-25 07:41:25,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704576365] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:25,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:25,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-25 07:41:25,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193036272] [2023-12-25 07:41:25,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:25,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 07:41:25,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:25,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 07:41:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:41:25,554 INFO L87 Difference]: Start difference. First operand 2964 states and 3893 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:25,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:25,789 INFO L93 Difference]: Finished difference Result 11358 states and 14758 transitions. [2023-12-25 07:41:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:41:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-25 07:41:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:25,800 INFO L225 Difference]: With dead ends: 11358 [2023-12-25 07:41:25,801 INFO L226 Difference]: Without dead ends: 8460 [2023-12-25 07:41:25,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:41:25,804 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:25,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 383 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:41:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2023-12-25 07:41:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 8416. [2023-12-25 07:41:26,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8416 states, 8415 states have (on average 1.2409982174688057) internal successors, (10443), 8415 states have internal predecessors, (10443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8416 states to 8416 states and 10443 transitions. [2023-12-25 07:41:26,037 INFO L78 Accepts]: Start accepts. Automaton has 8416 states and 10443 transitions. Word has length 88 [2023-12-25 07:41:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:26,037 INFO L495 AbstractCegarLoop]: Abstraction has 8416 states and 10443 transitions. [2023-12-25 07:41:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8416 states and 10443 transitions. [2023-12-25 07:41:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 07:41:26,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:26,040 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:26,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:26,242 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 07:41:26,242 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:26,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1741137134, now seen corresponding path program 1 times [2023-12-25 07:41:26,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:26,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019701316] [2023-12-25 07:41:26,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:26,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:26,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:26,244 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 07:41:26,245 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 07:41:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:26,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:26,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:27,248 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:27,682 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 46 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:27,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:27,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019701316] [2023-12-25 07:41:27,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019701316] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:27,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:27,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964094592] [2023-12-25 07:41:27,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:27,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:27,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:27,685 INFO L87 Difference]: Start difference. First operand 8416 states and 10443 transitions. Second operand has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:29,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:29,120 INFO L93 Difference]: Finished difference Result 14072 states and 17539 transitions. [2023-12-25 07:41:29,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 07:41:29,122 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2023-12-25 07:41:29,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:29,130 INFO L225 Difference]: With dead ends: 14072 [2023-12-25 07:41:29,130 INFO L226 Difference]: Without dead ends: 8534 [2023-12-25 07:41:29,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2023-12-25 07:41:29,135 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 789 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:29,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 951 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-25 07:41:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2023-12-25 07:41:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 8416. [2023-12-25 07:41:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8416 states, 8415 states have (on average 1.227688651218063) internal successors, (10331), 8415 states have internal predecessors, (10331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8416 states to 8416 states and 10331 transitions. [2023-12-25 07:41:29,454 INFO L78 Accepts]: Start accepts. Automaton has 8416 states and 10331 transitions. Word has length 135 [2023-12-25 07:41:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:29,454 INFO L495 AbstractCegarLoop]: Abstraction has 8416 states and 10331 transitions. [2023-12-25 07:41:29,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.461538461538462) internal successors, (246), 25 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 8416 states and 10331 transitions. [2023-12-25 07:41:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 07:41:29,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:29,458 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:29,460 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 07:41:29,660 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 07:41:29,660 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:29,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:29,661 INFO L85 PathProgramCache]: Analyzing trace with hash -442471134, now seen corresponding path program 1 times [2023-12-25 07:41:29,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:29,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400270317] [2023-12-25 07:41:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:29,661 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 07:41:29,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:29,662 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 07:41:29,663 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 07:41:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:29,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:41:29,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:30,777 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 46 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:30,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 46 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:31,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400270317] [2023-12-25 07:41:31,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400270317] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:31,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:31,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:41:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244314344] [2023-12-25 07:41:31,277 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:31,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:31,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:31,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:31,279 INFO L87 Difference]: Start difference. First operand 8416 states and 10331 transitions. Second operand has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:35,843 INFO L93 Difference]: Finished difference Result 16146 states and 19738 transitions. [2023-12-25 07:41:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-25 07:41:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-25 07:41:35,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:35,855 INFO L225 Difference]: With dead ends: 16146 [2023-12-25 07:41:35,855 INFO L226 Difference]: Without dead ends: 14472 [2023-12-25 07:41:35,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-25 07:41:35,858 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1048 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:35,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1984 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-25 07:41:35,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14472 states. [2023-12-25 07:41:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14472 to 5960. [2023-12-25 07:41:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5959 states have (on average 1.227554958885719) internal successors, (7315), 5959 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 7315 transitions. [2023-12-25 07:41:36,146 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 7315 transitions. Word has length 136 [2023-12-25 07:41:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:36,146 INFO L495 AbstractCegarLoop]: Abstraction has 5960 states and 7315 transitions. [2023-12-25 07:41:36,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 7315 transitions. [2023-12-25 07:41:36,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 07:41:36,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:36,148 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:36,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:36,350 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 07:41:36,351 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:36,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1894671054, now seen corresponding path program 1 times [2023-12-25 07:41:36,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902862065] [2023-12-25 07:41:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:41:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:36,353 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 07:41:36,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-25 07:41:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:36,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:36,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:37,400 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:37,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 38 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:37,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:37,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902862065] [2023-12-25 07:41:37,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902862065] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:37,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:37,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:37,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622803678] [2023-12-25 07:41:37,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:37,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:37,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:37,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:37,838 INFO L87 Difference]: Start difference. First operand 5960 states and 7315 transitions. Second operand has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:39,191 INFO L93 Difference]: Finished difference Result 11170 states and 13764 transitions. [2023-12-25 07:41:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 07:41:39,191 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-12-25 07:41:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:39,195 INFO L225 Difference]: With dead ends: 11170 [2023-12-25 07:41:39,195 INFO L226 Difference]: Without dead ends: 5962 [2023-12-25 07:41:39,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=378, Invalid=1428, Unknown=0, NotChecked=0, Total=1806 [2023-12-25 07:41:39,198 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 584 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:39,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 893 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:41:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5962 states. [2023-12-25 07:41:39,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5962 to 5960. [2023-12-25 07:41:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5959 states have (on average 1.2161436482631314) internal successors, (7247), 5959 states have internal predecessors, (7247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 7247 transitions. [2023-12-25 07:41:39,424 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 7247 transitions. Word has length 136 [2023-12-25 07:41:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:39,424 INFO L495 AbstractCegarLoop]: Abstraction has 5960 states and 7247 transitions. [2023-12-25 07:41:39,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.692307692307692) internal successors, (252), 25 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 7247 transitions. [2023-12-25 07:41:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 07:41:39,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:39,426 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-25 07:41:39,428 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 (25)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:39,628 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 07:41:39,628 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:39,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:39,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1684426718, now seen corresponding path program 1 times [2023-12-25 07:41:39,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:39,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276982596] [2023-12-25 07:41:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:39,629 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 07:41:39,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:39,630 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 07:41:39,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-25 07:41:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:39,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:39,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:40,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:40,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:40,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276982596] [2023-12-25 07:41:40,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276982596] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:40,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:40,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:40,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044264456] [2023-12-25 07:41:40,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:40,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:40,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:40,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:40,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:40,854 INFO L87 Difference]: Start difference. First operand 5960 states and 7247 transitions. Second operand has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:45,090 INFO L93 Difference]: Finished difference Result 26384 states and 32677 transitions. [2023-12-25 07:41:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2023-12-25 07:41:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2023-12-25 07:41:45,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:45,113 INFO L225 Difference]: With dead ends: 26384 [2023-12-25 07:41:45,114 INFO L226 Difference]: Without dead ends: 23812 [2023-12-25 07:41:45,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2618 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1444, Invalid=7486, Unknown=0, NotChecked=0, Total=8930 [2023-12-25 07:41:45,120 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 2159 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:45,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2159 Valid, 1104 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-25 07:41:45,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23812 states. [2023-12-25 07:41:45,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23812 to 5960. [2023-12-25 07:41:45,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5959 states have (on average 1.209766739385803) internal successors, (7209), 5959 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 7209 transitions. [2023-12-25 07:41:45,662 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 7209 transitions. Word has length 137 [2023-12-25 07:41:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:45,662 INFO L495 AbstractCegarLoop]: Abstraction has 5960 states and 7209 transitions. [2023-12-25 07:41:45,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.923076923076923) internal successors, (258), 25 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 7209 transitions. [2023-12-25 07:41:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-25 07:41:45,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:45,664 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:45,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-25 07:41:45,867 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 07:41:45,867 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:45,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:45,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1216960734, now seen corresponding path program 1 times [2023-12-25 07:41:45,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:45,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457046535] [2023-12-25 07:41:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:45,868 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 07:41:45,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:45,869 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 07:41:45,871 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 (27)] Waiting until timeout for monitored process [2023-12-25 07:41:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:45,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-25 07:41:45,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:46,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 22 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:47,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:47,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457046535] [2023-12-25 07:41:47,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457046535] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:47,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:47,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-25 07:41:47,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578818732] [2023-12-25 07:41:47,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:47,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:47,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:47,326 INFO L87 Difference]: Start difference. First operand 5960 states and 7209 transitions. Second operand has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 25 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:48,772 INFO L93 Difference]: Finished difference Result 8858 states and 10761 transitions. [2023-12-25 07:41:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 07:41:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 25 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-25 07:41:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:48,779 INFO L225 Difference]: With dead ends: 8858 [2023-12-25 07:41:48,779 INFO L226 Difference]: Without dead ends: 6358 [2023-12-25 07:41:48,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2023-12-25 07:41:48,781 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 970 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:48,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 749 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 07:41:48,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2023-12-25 07:41:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 5960. [2023-12-25 07:41:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5959 states have (on average 1.2033898305084745) internal successors, (7171), 5959 states have internal predecessors, (7171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:49,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 7171 transitions. [2023-12-25 07:41:49,073 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 7171 transitions. Word has length 138 [2023-12-25 07:41:49,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:49,073 INFO L495 AbstractCegarLoop]: Abstraction has 5960 states and 7171 transitions. [2023-12-25 07:41:49,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.153846153846153) internal successors, (264), 25 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:49,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 7171 transitions. [2023-12-25 07:41:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 07:41:49,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:49,075 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-25 07:41:49,080 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 07:41:49,277 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 07:41:49,278 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:49,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:49,278 INFO L85 PathProgramCache]: Analyzing trace with hash -959161550, now seen corresponding path program 1 times [2023-12-25 07:41:49,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:49,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550666833] [2023-12-25 07:41:49,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:49,279 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 07:41:49,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:49,279 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 07:41:49,280 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 07:41:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:49,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:41:49,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:50,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:50,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:50,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550666833] [2023-12-25 07:41:50,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550666833] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:50,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:50,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:41:50,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615292660] [2023-12-25 07:41:50,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:50,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:50,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:50,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:50,866 INFO L87 Difference]: Start difference. First operand 5960 states and 7171 transitions. Second operand has 26 states, 26 states have (on average 10.461538461538462) internal successors, (272), 26 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:54,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:41:54,980 INFO L93 Difference]: Finished difference Result 10866 states and 13038 transitions. [2023-12-25 07:41:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-25 07:41:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.461538461538462) internal successors, (272), 26 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 07:41:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:41:54,987 INFO L225 Difference]: With dead ends: 10866 [2023-12-25 07:41:54,987 INFO L226 Difference]: Without dead ends: 7740 [2023-12-25 07:41:54,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 07:41:54,992 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 790 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:41:54,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2068 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-25 07:41:54,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2023-12-25 07:41:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 6720. [2023-12-25 07:41:55,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6720 states, 6719 states have (on average 1.1949694895073673) internal successors, (8029), 6719 states have internal predecessors, (8029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6720 states to 6720 states and 8029 transitions. [2023-12-25 07:41:55,346 INFO L78 Accepts]: Start accepts. Automaton has 6720 states and 8029 transitions. Word has length 139 [2023-12-25 07:41:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:41:55,346 INFO L495 AbstractCegarLoop]: Abstraction has 6720 states and 8029 transitions. [2023-12-25 07:41:55,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.461538461538462) internal successors, (272), 26 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:41:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 6720 states and 8029 transitions. [2023-12-25 07:41:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 07:41:55,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:41:55,348 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-25 07:41:55,360 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 (28)] Ended with exit code 0 [2023-12-25 07:41:55,550 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 07:41:55,551 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:41:55,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:41:55,551 INFO L85 PathProgramCache]: Analyzing trace with hash -604455978, now seen corresponding path program 1 times [2023-12-25 07:41:55,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:41:55,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239248930] [2023-12-25 07:41:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:41:55,552 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 07:41:55,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:41:55,553 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 07:41:55,554 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 07:41:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:41:55,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:41:55,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:41:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:56,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:41:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 22 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:41:57,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:41:57,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239248930] [2023-12-25 07:41:57,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239248930] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:41:57,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:41:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:41:57,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434632877] [2023-12-25 07:41:57,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:41:57,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:41:57,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:41:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:41:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:41:57,401 INFO L87 Difference]: Start difference. First operand 6720 states and 8029 transitions. Second operand has 26 states, 26 states have (on average 10.26923076923077) internal successors, (267), 26 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:02,097 INFO L93 Difference]: Finished difference Result 11991 states and 14350 transitions. [2023-12-25 07:42:02,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:42:02,098 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.26923076923077) internal successors, (267), 26 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 07:42:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:02,106 INFO L225 Difference]: With dead ends: 11991 [2023-12-25 07:42:02,106 INFO L226 Difference]: Without dead ends: 10493 [2023-12-25 07:42:02,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:42:02,110 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 814 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:02,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2541 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-25 07:42:02,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10493 states. [2023-12-25 07:42:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10493 to 8761. [2023-12-25 07:42:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8761 states, 8760 states have (on average 1.1942922374429223) internal successors, (10462), 8760 states have internal predecessors, (10462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8761 states to 8761 states and 10462 transitions. [2023-12-25 07:42:02,579 INFO L78 Accepts]: Start accepts. Automaton has 8761 states and 10462 transitions. Word has length 139 [2023-12-25 07:42:02,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:02,579 INFO L495 AbstractCegarLoop]: Abstraction has 8761 states and 10462 transitions. [2023-12-25 07:42:02,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.26923076923077) internal successors, (267), 26 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8761 states and 10462 transitions. [2023-12-25 07:42:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 07:42:02,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:02,602 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-25 07:42:02,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-25 07:42:02,802 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 07:42:02,803 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:02,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:02,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1181426098, now seen corresponding path program 1 times [2023-12-25 07:42:02,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:02,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997415597] [2023-12-25 07:42:02,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:02,804 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 07:42:02,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:02,804 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 07:42:02,805 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 07:42:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:02,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:02,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:03,985 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:03,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:04,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:04,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997415597] [2023-12-25 07:42:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997415597] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:04,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:04,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953097893] [2023-12-25 07:42:04,464 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:04,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:04,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:04,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:04,465 INFO L87 Difference]: Start difference. First operand 8761 states and 10462 transitions. Second operand has 26 states, 26 states have (on average 10.076923076923077) internal successors, (262), 26 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:07,155 INFO L93 Difference]: Finished difference Result 16521 states and 19880 transitions. [2023-12-25 07:42:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-25 07:42:07,156 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.076923076923077) internal successors, (262), 26 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 07:42:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:07,169 INFO L225 Difference]: With dead ends: 16521 [2023-12-25 07:42:07,169 INFO L226 Difference]: Without dead ends: 14473 [2023-12-25 07:42:07,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2023-12-25 07:42:07,172 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 455 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:07,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1730 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 07:42:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14473 states. [2023-12-25 07:42:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14473 to 13351. [2023-12-25 07:42:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13351 states, 13350 states have (on average 1.1937078651685393) internal successors, (15936), 13350 states have internal predecessors, (15936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13351 states to 13351 states and 15936 transitions. [2023-12-25 07:42:07,909 INFO L78 Accepts]: Start accepts. Automaton has 13351 states and 15936 transitions. Word has length 139 [2023-12-25 07:42:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:07,909 INFO L495 AbstractCegarLoop]: Abstraction has 13351 states and 15936 transitions. [2023-12-25 07:42:07,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.076923076923077) internal successors, (262), 26 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13351 states and 15936 transitions. [2023-12-25 07:42:07,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-25 07:42:07,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:07,930 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-25 07:42:07,932 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 07:42:08,132 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 07:42:08,132 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:08,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:08,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1679426902, now seen corresponding path program 1 times [2023-12-25 07:42:08,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:08,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504660142] [2023-12-25 07:42:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:08,133 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 07:42:08,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:08,134 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 07:42:08,134 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 07:42:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 07:42:08,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:09,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 40 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:09,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:09,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504660142] [2023-12-25 07:42:09,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504660142] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:09,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-25 07:42:09,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218575775] [2023-12-25 07:42:09,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:09,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-25 07:42:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:09,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-25 07:42:09,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-25 07:42:09,713 INFO L87 Difference]: Start difference. First operand 13351 states and 15936 transitions. Second operand has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:15,539 INFO L93 Difference]: Finished difference Result 34091 states and 40579 transitions. [2023-12-25 07:42:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-25 07:42:15,539 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2023-12-25 07:42:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:15,566 INFO L225 Difference]: With dead ends: 34091 [2023-12-25 07:42:15,566 INFO L226 Difference]: Without dead ends: 28332 [2023-12-25 07:42:15,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=863, Invalid=3967, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 07:42:15,574 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 669 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:15,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 2357 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-25 07:42:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28332 states. [2023-12-25 07:42:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28332 to 24769. [2023-12-25 07:42:17,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24769 states, 24768 states have (on average 1.1787386950904393) internal successors, (29195), 24768 states have internal predecessors, (29195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24769 states to 24769 states and 29195 transitions. [2023-12-25 07:42:17,612 INFO L78 Accepts]: Start accepts. Automaton has 24769 states and 29195 transitions. Word has length 139 [2023-12-25 07:42:17,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:17,613 INFO L495 AbstractCegarLoop]: Abstraction has 24769 states and 29195 transitions. [2023-12-25 07:42:17,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 26 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 24769 states and 29195 transitions. [2023-12-25 07:42:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:42:17,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:17,626 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:17,628 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 (31)] Ended with exit code 0 [2023-12-25 07:42:17,826 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 07:42:17,826 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:17,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -359176195, now seen corresponding path program 1 times [2023-12-25 07:42:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16601561] [2023-12-25 07:42:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:42:17,828 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 07:42:17,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:17,829 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 07:42:17,830 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 07:42:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:42:17,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:42:17,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:20,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:42:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 86 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:42:20,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:20,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16601561] [2023-12-25 07:42:20,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16601561] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:42:20,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:42:20,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:42:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165735488] [2023-12-25 07:42:20,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:42:20,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:42:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:42:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:42:20,893 INFO L87 Difference]: Start difference. First operand 24769 states and 29195 transitions. Second operand has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:40,171 INFO L93 Difference]: Finished difference Result 34779 states and 41089 transitions. [2023-12-25 07:42:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-25 07:42:40,172 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-25 07:42:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:40,209 INFO L225 Difference]: With dead ends: 34779 [2023-12-25 07:42:40,209 INFO L226 Difference]: Without dead ends: 31103 [2023-12-25 07:42:40,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7002 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-25 07:42:40,219 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 1241 mSDsluCounter, 6253 mSDsCounter, 0 mSdLazyCounter, 7343 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 6603 SdHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 7343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:40,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 6603 Invalid, 7370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 7343 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-25 07:42:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31103 states. [2023-12-25 07:42:41,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31103 to 13245. [2023-12-25 07:42:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 1.1846874056176382) internal successors, (15690), 13244 states have internal predecessors, (15690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 15690 transitions. [2023-12-25 07:42:41,965 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 15690 transitions. Word has length 192 [2023-12-25 07:42:41,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:41,965 INFO L495 AbstractCegarLoop]: Abstraction has 13245 states and 15690 transitions. [2023-12-25 07:42:41,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.944444444444445) internal successors, (358), 36 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:41,966 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 15690 transitions. [2023-12-25 07:42:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:42:41,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:41,972 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:41,975 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 07:42:42,175 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 07:42:42,175 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:42,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1706034435, now seen corresponding path program 2 times [2023-12-25 07:42:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:42,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064118100] [2023-12-25 07:42:42,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:42,176 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 07:42:42,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:42,177 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 07:42:42,178 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 07:42:42,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:42,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:42,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:42,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:43,566 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-25 07:42:43,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:43,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:43,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064118100] [2023-12-25 07:42:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064118100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:43,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:43,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:43,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705236319] [2023-12-25 07:42:43,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:43,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:43,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:43,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:43,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:43,568 INFO L87 Difference]: Start difference. First operand 13245 states and 15690 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:44,936 INFO L93 Difference]: Finished difference Result 20996 states and 25262 transitions. [2023-12-25 07:42:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:44,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-25 07:42:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:44,948 INFO L225 Difference]: With dead ends: 20996 [2023-12-25 07:42:44,948 INFO L226 Difference]: Without dead ends: 15735 [2023-12-25 07:42:44,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:44,952 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 342 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:44,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 448 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15735 states. [2023-12-25 07:42:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15735 to 13165. [2023-12-25 07:42:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13165 states, 13164 states have (on average 1.171376481312671) internal successors, (15420), 13164 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13165 states to 13165 states and 15420 transitions. [2023-12-25 07:42:46,262 INFO L78 Accepts]: Start accepts. Automaton has 13165 states and 15420 transitions. Word has length 192 [2023-12-25 07:42:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:46,263 INFO L495 AbstractCegarLoop]: Abstraction has 13165 states and 15420 transitions. [2023-12-25 07:42:46,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 13165 states and 15420 transitions. [2023-12-25 07:42:46,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:42:46,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:46,267 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:46,269 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 07:42:46,467 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 07:42:46,468 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:46,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:46,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1351328863, now seen corresponding path program 2 times [2023-12-25 07:42:46,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:46,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644717604] [2023-12-25 07:42:46,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:46,469 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 07:42:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:46,470 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 07:42:46,471 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 07:42:46,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:46,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:46,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:46,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-25 07:42:47,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:47,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:47,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644717604] [2023-12-25 07:42:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644717604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:47,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:47,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:47,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946495285] [2023-12-25 07:42:47,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:47,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:47,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:47,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:47,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:47,913 INFO L87 Difference]: Start difference. First operand 13165 states and 15420 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:49,614 INFO L93 Difference]: Finished difference Result 17847 states and 21287 transitions. [2023-12-25 07:42:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:49,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-25 07:42:49,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:49,630 INFO L225 Difference]: With dead ends: 17847 [2023-12-25 07:42:49,630 INFO L226 Difference]: Without dead ends: 16373 [2023-12-25 07:42:49,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:49,633 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 261 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:49,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 530 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16373 states. [2023-12-25 07:42:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16373 to 14315. [2023-12-25 07:42:51,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14315 states, 14314 states have (on average 1.1687858041078665) internal successors, (16730), 14314 states have internal predecessors, (16730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14315 states to 14315 states and 16730 transitions. [2023-12-25 07:42:51,170 INFO L78 Accepts]: Start accepts. Automaton has 14315 states and 16730 transitions. Word has length 192 [2023-12-25 07:42:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:51,170 INFO L495 AbstractCegarLoop]: Abstraction has 14315 states and 16730 transitions. [2023-12-25 07:42:51,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14315 states and 16730 transitions. [2023-12-25 07:42:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:42:51,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:51,175 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:51,177 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 07:42:51,375 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 07:42:51,376 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:51,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash 434553213, now seen corresponding path program 2 times [2023-12-25 07:42:51,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:51,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841560846] [2023-12-25 07:42:51,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:51,376 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 07:42:51,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:51,377 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 07:42:51,378 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 07:42:51,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:51,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:51,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:51,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-25 07:42:52,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:52,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841560846] [2023-12-25 07:42:52,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841560846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:52,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:52,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189422642] [2023-12-25 07:42:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:52,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:52,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:52,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:52,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:52,754 INFO L87 Difference]: Start difference. First operand 14315 states and 16730 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:54,774 INFO L93 Difference]: Finished difference Result 19123 states and 22752 transitions. [2023-12-25 07:42:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:54,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-25 07:42:54,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:54,794 INFO L225 Difference]: With dead ends: 19123 [2023-12-25 07:42:54,795 INFO L226 Difference]: Without dead ends: 17381 [2023-12-25 07:42:54,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:54,799 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 270 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:54,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 516 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17381 states. [2023-12-25 07:42:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17381 to 15596. [2023-12-25 07:42:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15596 states, 15595 states have (on average 1.1653735171529336) internal successors, (18174), 15595 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15596 states to 15596 states and 18174 transitions. [2023-12-25 07:42:56,606 INFO L78 Accepts]: Start accepts. Automaton has 15596 states and 18174 transitions. Word has length 192 [2023-12-25 07:42:56,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:42:56,606 INFO L495 AbstractCegarLoop]: Abstraction has 15596 states and 18174 transitions. [2023-12-25 07:42:56,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 15596 states and 18174 transitions. [2023-12-25 07:42:56,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-25 07:42:56,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:42:56,611 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:42:56,613 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 (35)] Ended with exit code 0 [2023-12-25 07:42:56,811 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 07:42:56,812 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:42:56,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:42:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash 932554017, now seen corresponding path program 2 times [2023-12-25 07:42:56,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:42:56,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705694885] [2023-12-25 07:42:56,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:42:56,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:42:56,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:42:56,813 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 07:42:56,814 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 07:42:56,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:42:56,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:42:56,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:42:56,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:42:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-25 07:42:57,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:42:57,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:42:57,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705694885] [2023-12-25 07:42:57,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705694885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:42:57,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:42:57,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:42:57,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180303465] [2023-12-25 07:42:57,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:42:57,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:42:57,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:42:57,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:42:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:57,994 INFO L87 Difference]: Start difference. First operand 15596 states and 18174 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:42:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:42:59,589 INFO L93 Difference]: Finished difference Result 20592 states and 24429 transitions. [2023-12-25 07:42:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:42:59,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-12-25 07:42:59,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:42:59,603 INFO L225 Difference]: With dead ends: 20592 [2023-12-25 07:42:59,604 INFO L226 Difference]: Without dead ends: 18786 [2023-12-25 07:42:59,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:42:59,606 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 268 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:42:59,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 470 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:42:59,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18786 states. [2023-12-25 07:43:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18786 to 17001. [2023-12-25 07:43:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17001 states, 17000 states have (on average 1.1636470588235295) internal successors, (19782), 17000 states have internal predecessors, (19782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17001 states to 17001 states and 19782 transitions. [2023-12-25 07:43:01,097 INFO L78 Accepts]: Start accepts. Automaton has 17001 states and 19782 transitions. Word has length 192 [2023-12-25 07:43:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:01,097 INFO L495 AbstractCegarLoop]: Abstraction has 17001 states and 19782 transitions. [2023-12-25 07:43:01,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17001 states and 19782 transitions. [2023-12-25 07:43:01,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-25 07:43:01,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:01,102 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:43:01,104 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 07:43:01,302 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 07:43:01,303 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:01,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1838158391, now seen corresponding path program 1 times [2023-12-25 07:43:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130839283] [2023-12-25 07:43:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:01,303 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 07:43:01,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:01,304 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 07:43:01,305 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 07:43:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:01,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:01,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:03,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 38 proven. 263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:04,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:04,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130839283] [2023-12-25 07:43:04,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130839283] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:04,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:04,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:04,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191020183] [2023-12-25 07:43:04,356 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:04,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:04,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:04,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:04,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:04,358 INFO L87 Difference]: Start difference. First operand 17001 states and 19782 transitions. Second operand has 36 states, 36 states have (on average 10.38888888888889) internal successors, (374), 36 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:13,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:13,224 INFO L93 Difference]: Finished difference Result 23837 states and 27819 transitions. [2023-12-25 07:43:13,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-12-25 07:43:13,224 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.38888888888889) internal successors, (374), 36 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-25 07:43:13,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:13,242 INFO L225 Difference]: With dead ends: 23837 [2023-12-25 07:43:13,242 INFO L226 Difference]: Without dead ends: 21109 [2023-12-25 07:43:13,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=960, Invalid=7412, Unknown=0, NotChecked=0, Total=8372 [2023-12-25 07:43:13,246 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 675 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 5091 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 5105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:13,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 4829 Invalid, 5105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 5091 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 07:43:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21109 states. [2023-12-25 07:43:14,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21109 to 10408. [2023-12-25 07:43:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10408 states, 10407 states have (on average 1.1668108004227924) internal successors, (12143), 10407 states have internal predecessors, (12143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10408 states to 10408 states and 12143 transitions. [2023-12-25 07:43:14,447 INFO L78 Accepts]: Start accepts. Automaton has 10408 states and 12143 transitions. Word has length 193 [2023-12-25 07:43:14,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:14,448 INFO L495 AbstractCegarLoop]: Abstraction has 10408 states and 12143 transitions. [2023-12-25 07:43:14,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.38888888888889) internal successors, (374), 36 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:14,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10408 states and 12143 transitions. [2023-12-25 07:43:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-25 07:43:14,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:14,451 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:43:14,454 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 07:43:14,652 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 07:43:14,652 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:14,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:14,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1984578413, now seen corresponding path program 1 times [2023-12-25 07:43:14,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:14,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199012643] [2023-12-25 07:43:14,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:14,653 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 07:43:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:14,654 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 07:43:14,655 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 07:43:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:14,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:14,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:16,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 54 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:17,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:17,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199012643] [2023-12-25 07:43:17,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199012643] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:17,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:17,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:17,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426802728] [2023-12-25 07:43:17,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:17,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:17,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:17,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:17,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:17,263 INFO L87 Difference]: Start difference. First operand 10408 states and 12143 transitions. Second operand has 36 states, 36 states have (on average 10.25) internal successors, (369), 36 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:32,847 INFO L93 Difference]: Finished difference Result 17198 states and 20137 transitions. [2023-12-25 07:43:32,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-25 07:43:32,847 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.25) internal successors, (369), 36 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-25 07:43:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:32,862 INFO L225 Difference]: With dead ends: 17198 [2023-12-25 07:43:32,862 INFO L226 Difference]: Without dead ends: 14117 [2023-12-25 07:43:32,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4466 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=2311, Invalid=14719, Unknown=0, NotChecked=0, Total=17030 [2023-12-25 07:43:32,866 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1257 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 5905 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 5376 SdHoareTripleChecker+Invalid, 5931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:32,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 5376 Invalid, 5931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5905 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-25 07:43:32,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14117 states. [2023-12-25 07:43:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14117 to 11620. [2023-12-25 07:43:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11620 states, 11619 states have (on average 1.1687752818659092) internal successors, (13580), 11619 states have internal predecessors, (13580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11620 states to 11620 states and 13580 transitions. [2023-12-25 07:43:34,114 INFO L78 Accepts]: Start accepts. Automaton has 11620 states and 13580 transitions. Word has length 193 [2023-12-25 07:43:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:34,115 INFO L495 AbstractCegarLoop]: Abstraction has 11620 states and 13580 transitions. [2023-12-25 07:43:34,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.25) internal successors, (369), 36 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 11620 states and 13580 transitions. [2023-12-25 07:43:34,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-25 07:43:34,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:34,117 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:43:34,120 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 07:43:34,317 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 07:43:34,318 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:34,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash 242734153, now seen corresponding path program 1 times [2023-12-25 07:43:34,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:34,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100092421] [2023-12-25 07:43:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:34,319 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 07:43:34,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:34,320 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 07:43:34,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-25 07:43:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:34,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:34,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:43:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:36,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:43:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 70 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:43:36,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:43:36,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100092421] [2023-12-25 07:43:36,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100092421] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:43:36,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:43:36,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:43:36,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930789392] [2023-12-25 07:43:36,765 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:43:36,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:43:36,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:43:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:43:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:43:36,766 INFO L87 Difference]: Start difference. First operand 11620 states and 13580 transitions. Second operand has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:54,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:43:54,918 INFO L93 Difference]: Finished difference Result 31586 states and 36596 transitions. [2023-12-25 07:43:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-12-25 07:43:54,919 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2023-12-25 07:43:54,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:43:54,940 INFO L225 Difference]: With dead ends: 31586 [2023-12-25 07:43:54,941 INFO L226 Difference]: Without dead ends: 28291 [2023-12-25 07:43:54,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5751 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=2694, Invalid=17612, Unknown=0, NotChecked=0, Total=20306 [2023-12-25 07:43:54,945 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1361 mSDsluCounter, 4436 mSDsCounter, 0 mSdLazyCounter, 5404 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4735 SdHoareTripleChecker+Invalid, 5438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 5404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-25 07:43:54,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4735 Invalid, 5438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 5404 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-25 07:43:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28291 states. [2023-12-25 07:43:57,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28291 to 22587. [2023-12-25 07:43:57,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22587 states, 22586 states have (on average 1.159435048259984) internal successors, (26187), 22586 states have internal predecessors, (26187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22587 states to 22587 states and 26187 transitions. [2023-12-25 07:43:57,929 INFO L78 Accepts]: Start accepts. Automaton has 22587 states and 26187 transitions. Word has length 193 [2023-12-25 07:43:57,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:43:57,929 INFO L495 AbstractCegarLoop]: Abstraction has 22587 states and 26187 transitions. [2023-12-25 07:43:57,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.11111111111111) internal successors, (364), 36 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:43:57,930 INFO L276 IsEmpty]: Start isEmpty. Operand 22587 states and 26187 transitions. [2023-12-25 07:43:57,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-25 07:43:57,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:43:57,934 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:43:57,937 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 07:43:58,136 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 07:43:58,136 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:43:58,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:43:58,136 INFO L85 PathProgramCache]: Analyzing trace with hash 420857413, now seen corresponding path program 1 times [2023-12-25 07:43:58,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:43:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357950310] [2023-12-25 07:43:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:43:58,137 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 07:43:58,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:43:58,138 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 07:43:58,139 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 (40)] Waiting until timeout for monitored process [2023-12-25 07:43:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:43:58,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-25 07:43:58,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:44:00,084 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:00,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:44:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 32 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:00,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:44:00,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357950310] [2023-12-25 07:44:00,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357950310] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:44:00,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:44:00,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-25 07:44:00,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427583897] [2023-12-25 07:44:00,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:44:00,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-25 07:44:00,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:44:00,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-25 07:44:00,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-25 07:44:00,858 INFO L87 Difference]: Start difference. First operand 22587 states and 26187 transitions. Second operand has 36 states, 36 states have (on average 10.555555555555555) internal successors, (380), 36 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:44:20,096 INFO L93 Difference]: Finished difference Result 52613 states and 61003 transitions. [2023-12-25 07:44:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-25 07:44:20,096 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.555555555555555) internal successors, (380), 36 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2023-12-25 07:44:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:44:20,137 INFO L225 Difference]: With dead ends: 52613 [2023-12-25 07:44:20,137 INFO L226 Difference]: Without dead ends: 48183 [2023-12-25 07:44:20,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-25 07:44:20,145 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1281 mSDsluCounter, 5386 mSDsCounter, 0 mSdLazyCounter, 6590 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 5685 SdHoareTripleChecker+Invalid, 6612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 6590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:44:20,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 5685 Invalid, 6612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 6590 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-25 07:44:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48183 states. [2023-12-25 07:44:26,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48183 to 43636. [2023-12-25 07:44:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43636 states, 43635 states have (on average 1.1583132806233527) internal successors, (50543), 43635 states have internal predecessors, (50543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43636 states to 43636 states and 50543 transitions. [2023-12-25 07:44:26,149 INFO L78 Accepts]: Start accepts. Automaton has 43636 states and 50543 transitions. Word has length 194 [2023-12-25 07:44:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:44:26,149 INFO L495 AbstractCegarLoop]: Abstraction has 43636 states and 50543 transitions. [2023-12-25 07:44:26,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 10.555555555555555) internal successors, (380), 36 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 43636 states and 50543 transitions. [2023-12-25 07:44:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-25 07:44:26,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:44:26,174 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:44:26,177 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 (40)] Forceful destruction successful, exit code 0 [2023-12-25 07:44:26,377 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 07:44:26,377 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:44:26,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:44:26,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1787916014, now seen corresponding path program 2 times [2023-12-25 07:44:26,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:44:26,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763502803] [2023-12-25 07:44:26,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:44:26,378 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 07:44:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:44:26,379 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 07:44:26,442 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 07:44:26,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-25 07:44:26,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:44:26,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:44:26,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:44:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2023-12-25 07:44:28,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:44:28,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:44:28,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763502803] [2023-12-25 07:44:28,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763502803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:44:28,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:44:28,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 07:44:28,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446903399] [2023-12-25 07:44:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:44:28,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 07:44:28,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:44:28,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 07:44:28,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:44:28,190 INFO L87 Difference]: Start difference. First operand 43636 states and 50543 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:44:33,428 INFO L93 Difference]: Finished difference Result 52707 states and 61861 transitions. [2023-12-25 07:44:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 07:44:33,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2023-12-25 07:44:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:44:33,473 INFO L225 Difference]: With dead ends: 52707 [2023-12-25 07:44:33,474 INFO L226 Difference]: Without dead ends: 48834 [2023-12-25 07:44:33,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:44:33,482 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 319 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:44:33,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 477 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:44:33,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48834 states. [2023-12-25 07:44:39,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48834 to 46182. [2023-12-25 07:44:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46182 states, 46181 states have (on average 1.1573374331435007) internal successors, (53447), 46181 states have internal predecessors, (53447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46182 states to 46182 states and 53447 transitions. [2023-12-25 07:44:39,245 INFO L78 Accepts]: Start accepts. Automaton has 46182 states and 53447 transitions. Word has length 245 [2023-12-25 07:44:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:44:39,245 INFO L495 AbstractCegarLoop]: Abstraction has 46182 states and 53447 transitions. [2023-12-25 07:44:39,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:44:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 46182 states and 53447 transitions. [2023-12-25 07:44:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-25 07:44:39,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:44:39,266 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:39,272 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 07:44:39,468 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 07:44:39,468 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:44:39,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:44:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1807509112, now seen corresponding path program 1 times [2023-12-25 07:44:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:44:39,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386052199] [2023-12-25 07:44:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:44:39,469 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 07:44:39,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:44:39,470 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 07:44:39,471 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 07:44:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:44:39,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:44:39,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:44:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:41,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:44:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 123 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:44:43,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:44:43,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386052199] [2023-12-25 07:44:43,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386052199] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:44:43,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:44:43,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:44:43,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311891611] [2023-12-25 07:44:43,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:44:43,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:44:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:44:43,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:44:43,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:44:43,032 INFO L87 Difference]: Start difference. First operand 46182 states and 53447 transitions. Second operand has 46 states, 46 states have (on average 10.108695652173912) internal successors, (465), 46 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:45:32,529 INFO L93 Difference]: Finished difference Result 59625 states and 69009 transitions. [2023-12-25 07:45:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2023-12-25 07:45:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.108695652173912) internal successors, (465), 46 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-25 07:45:32,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:45:32,579 INFO L225 Difference]: With dead ends: 59625 [2023-12-25 07:45:32,579 INFO L226 Difference]: Without dead ends: 53206 [2023-12-25 07:45:32,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23295 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=7432, Invalid=64124, Unknown=0, NotChecked=0, Total=71556 [2023-12-25 07:45:32,588 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1500 mSDsluCounter, 10559 mSDsCounter, 0 mSdLazyCounter, 15140 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 11056 SdHoareTripleChecker+Invalid, 15171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 15140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:45:32,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 11056 Invalid, 15171 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [31 Valid, 15140 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-12-25 07:45:32,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53206 states. [2023-12-25 07:45:36,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53206 to 24386. [2023-12-25 07:45:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24386 states, 24385 states have (on average 1.1600574123436538) internal successors, (28288), 24385 states have internal predecessors, (28288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24386 states to 24386 states and 28288 transitions. [2023-12-25 07:45:36,624 INFO L78 Accepts]: Start accepts. Automaton has 24386 states and 28288 transitions. Word has length 246 [2023-12-25 07:45:36,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:45:36,624 INFO L495 AbstractCegarLoop]: Abstraction has 24386 states and 28288 transitions. [2023-12-25 07:45:36,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.108695652173912) internal successors, (465), 46 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:45:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 24386 states and 28288 transitions. [2023-12-25 07:45:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-25 07:45:36,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:45:36,634 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:36,639 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 (42)] Forceful destruction successful, exit code 0 [2023-12-25 07:45:36,837 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 07:45:36,837 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:45:36,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:45:36,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1115547476, now seen corresponding path program 2 times [2023-12-25 07:45:36,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:45:36,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480307943] [2023-12-25 07:45:36,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:45:36,839 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 07:45:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:45:36,840 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 07:45:36,841 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 07:45:37,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:45:37,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:45:37,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:45:37,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:45:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:39,492 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:45:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 54 proven. 524 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:45:40,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:45:40,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480307943] [2023-12-25 07:45:40,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480307943] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:45:40,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:45:40,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:45:40,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840399515] [2023-12-25 07:45:40,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:45:40,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:45:40,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:45:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:45:40,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:45:40,539 INFO L87 Difference]: Start difference. First operand 24386 states and 28288 transitions. Second operand has 46 states, 46 states have (on average 10.434782608695652) internal successors, (480), 46 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:46:18,048 INFO L93 Difference]: Finished difference Result 32916 states and 38240 transitions. [2023-12-25 07:46:18,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-12-25 07:46:18,048 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.434782608695652) internal successors, (480), 46 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-25 07:46:18,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:46:18,072 INFO L225 Difference]: With dead ends: 32916 [2023-12-25 07:46:18,072 INFO L226 Difference]: Without dead ends: 29294 [2023-12-25 07:46:18,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13751 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=5081, Invalid=40929, Unknown=0, NotChecked=0, Total=46010 [2023-12-25 07:46:18,078 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 1842 mSDsluCounter, 9120 mSDsCounter, 0 mSdLazyCounter, 12207 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 9511 SdHoareTripleChecker+Invalid, 12240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 12207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-25 07:46:18,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 9511 Invalid, 12240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 12207 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-25 07:46:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29294 states. [2023-12-25 07:46:20,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29294 to 14405. [2023-12-25 07:46:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14405 states, 14404 states have (on average 1.1607192446542627) internal successors, (16719), 14404 states have internal predecessors, (16719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14405 states to 14405 states and 16719 transitions. [2023-12-25 07:46:20,692 INFO L78 Accepts]: Start accepts. Automaton has 14405 states and 16719 transitions. Word has length 246 [2023-12-25 07:46:20,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:46:20,693 INFO L495 AbstractCegarLoop]: Abstraction has 14405 states and 16719 transitions. [2023-12-25 07:46:20,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.434782608695652) internal successors, (480), 46 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:20,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14405 states and 16719 transitions. [2023-12-25 07:46:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-25 07:46:20,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:46:20,698 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:20,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2023-12-25 07:46:20,901 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 07:46:20,902 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:46:20,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:46:20,902 INFO L85 PathProgramCache]: Analyzing trace with hash 643316984, now seen corresponding path program 2 times [2023-12-25 07:46:20,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:46:20,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596612956] [2023-12-25 07:46:20,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:46:20,902 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 07:46:20,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:46:20,903 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 07:46:20,904 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 07:46:21,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:46:21,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:46:21,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:46:21,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:46:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 31 proven. 547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:24,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:46:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 31 proven. 547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:25,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:46:25,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596612956] [2023-12-25 07:46:25,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596612956] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:46:25,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:46:25,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:46:25,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578394933] [2023-12-25 07:46:25,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:46:25,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:46:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:46:25,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:46:25,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:46:25,225 INFO L87 Difference]: Start difference. First operand 14405 states and 16719 transitions. Second operand has 46 states, 46 states have (on average 10.565217391304348) internal successors, (486), 46 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:46:49,747 INFO L93 Difference]: Finished difference Result 33957 states and 39373 transitions. [2023-12-25 07:46:49,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-12-25 07:46:49,748 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.565217391304348) internal successors, (486), 46 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-25 07:46:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:46:49,773 INFO L225 Difference]: With dead ends: 33957 [2023-12-25 07:46:49,773 INFO L226 Difference]: Without dead ends: 31619 [2023-12-25 07:46:49,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5920 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=2292, Invalid=20660, Unknown=0, NotChecked=0, Total=22952 [2023-12-25 07:46:49,779 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1078 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 10319 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 8473 SdHoareTripleChecker+Invalid, 10339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:46:49,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 8473 Invalid, 10339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 10319 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-12-25 07:46:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31619 states. [2023-12-25 07:46:54,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31619 to 28307. [2023-12-25 07:46:54,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28307 states, 28306 states have (on average 1.1608492899032008) internal successors, (32859), 28306 states have internal predecessors, (32859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28307 states to 28307 states and 32859 transitions. [2023-12-25 07:46:54,810 INFO L78 Accepts]: Start accepts. Automaton has 28307 states and 32859 transitions. Word has length 246 [2023-12-25 07:46:54,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:46:54,810 INFO L495 AbstractCegarLoop]: Abstraction has 28307 states and 32859 transitions. [2023-12-25 07:46:54,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.565217391304348) internal successors, (486), 46 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:46:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 28307 states and 32859 transitions. [2023-12-25 07:46:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-25 07:46:54,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:46:54,820 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:54,826 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 07:46:55,020 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 07:46:55,021 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:46:55,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:46:55,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1042060372, now seen corresponding path program 1 times [2023-12-25 07:46:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:46:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212908954] [2023-12-25 07:46:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:46:55,022 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 07:46:55,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:46:55,023 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 07:46:55,031 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 07:46:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:46:55,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:46:55,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:46:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:57,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:46:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 100 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:46:58,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:46:58,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212908954] [2023-12-25 07:46:58,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212908954] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:46:58,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:46:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:46:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110550180] [2023-12-25 07:46:58,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:46:58,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:46:58,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:46:58,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:46:58,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:46:58,702 INFO L87 Difference]: Start difference. First operand 28307 states and 32859 transitions. Second operand has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:47:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:47:55,244 INFO L93 Difference]: Finished difference Result 66363 states and 76560 transitions. [2023-12-25 07:47:55,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2023-12-25 07:47:55,244 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2023-12-25 07:47:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:47:55,297 INFO L225 Difference]: With dead ends: 66363 [2023-12-25 07:47:55,298 INFO L226 Difference]: Without dead ends: 61806 [2023-12-25 07:47:55,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20098 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=6647, Invalid=55105, Unknown=0, NotChecked=0, Total=61752 [2023-12-25 07:47:55,306 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1522 mSDsluCounter, 9966 mSDsCounter, 0 mSdLazyCounter, 13305 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 10424 SdHoareTripleChecker+Invalid, 13350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 13305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:47:55,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 10424 Invalid, 13350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 13305 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-25 07:47:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61806 states. [2023-12-25 07:48:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61806 to 29233. [2023-12-25 07:48:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29233 states, 29232 states have (on average 1.160748494800219) internal successors, (33931), 29232 states have internal predecessors, (33931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29233 states to 29233 states and 33931 transitions. [2023-12-25 07:48:01,642 INFO L78 Accepts]: Start accepts. Automaton has 29233 states and 33931 transitions. Word has length 246 [2023-12-25 07:48:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:01,642 INFO L495 AbstractCegarLoop]: Abstraction has 29233 states and 33931 transitions. [2023-12-25 07:48:01,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.217391304347826) internal successors, (470), 46 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 29233 states and 33931 transitions. [2023-12-25 07:48:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-25 07:48:01,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:01,651 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:48:01,654 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 (45)] Ended with exit code 0 [2023-12-25 07:48:01,851 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 07:48:01,851 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:01,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:01,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1002944330, now seen corresponding path program 2 times [2023-12-25 07:48:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:01,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127614813] [2023-12-25 07:48:01,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:48:01,852 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 07:48:01,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:01,853 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 07:48:01,854 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 07:48:01,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:48:01,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:48:01,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:48:01,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 14 proven. 522 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:48:02,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 14 proven. 522 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-25 07:48:02,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:02,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127614813] [2023-12-25 07:48:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127614813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:02,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-25 07:48:02,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584905547] [2023-12-25 07:48:02,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:02,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-25 07:48:02,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-25 07:48:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:48:02,515 INFO L87 Difference]: Start difference. First operand 29233 states and 33931 transitions. Second operand has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:48:12,201 INFO L93 Difference]: Finished difference Result 65503 states and 75331 transitions. [2023-12-25 07:48:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 07:48:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2023-12-25 07:48:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:48:12,240 INFO L225 Difference]: With dead ends: 65503 [2023-12-25 07:48:12,240 INFO L226 Difference]: Without dead ends: 40049 [2023-12-25 07:48:12,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-12-25 07:48:12,247 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 134 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:48:12,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1464 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:48:12,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40049 states. [2023-12-25 07:48:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40049 to 35147. [2023-12-25 07:48:20,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35147 states, 35146 states have (on average 1.1500028452739999) internal successors, (40418), 35146 states have internal predecessors, (40418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:20,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35147 states to 35147 states and 40418 transitions. [2023-12-25 07:48:20,603 INFO L78 Accepts]: Start accepts. Automaton has 35147 states and 40418 transitions. Word has length 247 [2023-12-25 07:48:20,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:48:20,603 INFO L495 AbstractCegarLoop]: Abstraction has 35147 states and 40418 transitions. [2023-12-25 07:48:20,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:48:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 35147 states and 40418 transitions. [2023-12-25 07:48:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-12-25 07:48:20,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:48:20,613 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:48:20,617 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 (46)] Ended with exit code 0 [2023-12-25 07:48:20,813 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 07:48:20,814 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:48:20,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:48:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1606821018, now seen corresponding path program 1 times [2023-12-25 07:48:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:48:20,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983828335] [2023-12-25 07:48:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:48:20,814 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 07:48:20,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:48:20,816 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 07:48:20,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-25 07:48:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:48:20,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-25 07:48:20,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:48:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 91 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:23,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:48:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 91 proven. 501 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:48:24,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:48:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983828335] [2023-12-25 07:48:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983828335] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:48:24,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:48:24,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46 [2023-12-25 07:48:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389849653] [2023-12-25 07:48:24,679 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:48:24,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-25 07:48:24,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:48:24,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-25 07:48:24,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1929, Unknown=0, NotChecked=0, Total=2070 [2023-12-25 07:48:24,681 INFO L87 Difference]: Start difference. First operand 35147 states and 40418 transitions. Second operand has 46 states, 46 states have (on average 10.347826086956522) internal successors, (476), 46 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:24,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:49:24,131 INFO L93 Difference]: Finished difference Result 88128 states and 100955 transitions. [2023-12-25 07:49:24,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-12-25 07:49:24,132 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 10.347826086956522) internal successors, (476), 46 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2023-12-25 07:49:24,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:49:24,212 INFO L225 Difference]: With dead ends: 88128 [2023-12-25 07:49:24,212 INFO L226 Difference]: Without dead ends: 81770 [2023-12-25 07:49:24,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16970 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=5842, Invalid=48214, Unknown=0, NotChecked=0, Total=54056 [2023-12-25 07:49:24,224 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1370 mSDsluCounter, 10611 mSDsCounter, 0 mSdLazyCounter, 13855 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 11044 SdHoareTripleChecker+Invalid, 13887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 13855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:49:24,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 11044 Invalid, 13887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 13855 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-12-25 07:49:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81770 states. [2023-12-25 07:49:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81770 to 70129. [2023-12-25 07:49:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70129 states, 70128 states have (on average 1.1443360711841204) internal successors, (80250), 70128 states have internal predecessors, (80250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70129 states to 70129 states and 80250 transitions. [2023-12-25 07:49:43,737 INFO L78 Accepts]: Start accepts. Automaton has 70129 states and 80250 transitions. Word has length 247 [2023-12-25 07:49:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:49:43,738 INFO L495 AbstractCegarLoop]: Abstraction has 70129 states and 80250 transitions. [2023-12-25 07:49:43,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 10.347826086956522) internal successors, (476), 46 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 07:49:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 70129 states and 80250 transitions. [2023-12-25 07:49:43,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-25 07:49:43,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:49:43,790 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:43,796 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 07:49:43,990 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 07:49:43,991 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:49:43,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:49:43,991 INFO L85 PathProgramCache]: Analyzing trace with hash 350604749, now seen corresponding path program 2 times [2023-12-25 07:49:43,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:49:43,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383796775] [2023-12-25 07:49:43,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-25 07:49:43,992 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 07:49:43,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:49:43,993 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 07:49:43,994 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 07:49:44,412 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-25 07:49:44,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-25 07:49:44,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-25 07:49:44,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:49:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 484 proven. 91 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-12-25 07:49:50,599 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 07:50:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 944 backedges. 434 proven. 483 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-25 07:50:10,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:50:10,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383796775] [2023-12-25 07:50:10,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383796775] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 07:50:10,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 07:50:10,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 48] total 82 [2023-12-25 07:50:10,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712747912] [2023-12-25 07:50:10,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 07:50:10,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2023-12-25 07:50:10,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:50:10,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2023-12-25 07:50:10,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=624, Invalid=6018, Unknown=0, NotChecked=0, Total=6642 [2023-12-25 07:50:10,289 INFO L87 Difference]: Start difference. First operand 70129 states and 80250 transitions. Second operand has 82 states, 82 states have (on average 5.024390243902439) internal successors, (412), 82 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-25 07:55:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-12-25 07:55:22,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 513 SyntacticMatches, 3 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4975 ImplicationChecksByTransitivity, 273.5s TimeCoverageRelationStatistics Valid=3027, Invalid=17560, Unknown=5, NotChecked=0, Total=20592 [2023-12-25 07:55:22,333 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1748 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2023-12-25 07:55:22,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 1286 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 3127 Invalid, 0 Unknown, 0 Unchecked, 38.6s Time] [2023-12-25 07:55:22,333 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 07:55:22,338 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 07:55:22,338 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 07:55:22,342 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 07:55:22,538 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 07:55:22,538 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (70129states) and FLOYD_HOARE automaton (currently 74 states, 82 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-28-9-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-24-10-2-4-1 context. [2023-12-25 07:55:22,542 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-25 07:55:22,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 07:55:22,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 07:55:22 BoogieIcfgContainer [2023-12-25 07:55:22,546 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 07:55:22,547 INFO L158 Benchmark]: Toolchain (without parser) took 855374.76ms. Allocated memory was 334.5MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 282.2MB in the beginning and 1.0GB in the end (delta: -755.6MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 250.6MB. Free memory is still 201.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.61ms. Allocated memory is still 334.5MB. Free memory was 281.8MB in the beginning and 265.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 334.5MB. Free memory was 265.7MB in the beginning and 263.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: Boogie Preprocessor took 64.12ms. Allocated memory is still 334.5MB. Free memory was 263.3MB in the beginning and 260.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: RCFGBuilder took 548.22ms. Allocated memory is still 334.5MB. Free memory was 260.2MB in the beginning and 287.4MB in the end (delta: -27.2MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. [2023-12-25 07:55:22,549 INFO L158 Benchmark]: TraceAbstraction took 854441.28ms. Allocated memory was 334.5MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 286.9MB in the beginning and 1.0GB in the end (delta: -750.9MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-25 07:55:22,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 250.6MB. Free memory is still 201.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 280.61ms. Allocated memory is still 334.5MB. Free memory was 281.8MB in the beginning and 265.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 334.5MB. Free memory was 265.7MB in the beginning and 263.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.12ms. Allocated memory is still 334.5MB. Free memory was 263.3MB in the beginning and 260.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 548.22ms. Allocated memory is still 334.5MB. Free memory was 260.2MB in the beginning and 287.4MB in the end (delta: -27.2MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. * TraceAbstraction took 854441.28ms. Allocated memory was 334.5MB in the beginning and 3.4GB in the end (delta: 3.1GB). Free memory was 286.9MB in the beginning and 1.0GB in the end (delta: -750.9MB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 429]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 429). Cancelled while NwaCegarLoop was constructing difference of abstraction (70129states) and FLOYD_HOARE automaton (currently 74 states, 82 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-28-9-2-4-1 term,while PolyPacSimplificationTermWalker was simplifying a ∨-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-24-10-2-4-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 854.4s, OverallIterations: 47, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 679.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28428 SdHoareTripleChecker+Valid, 132.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28428 mSDsluCounter, 105311 SdHoareTripleChecker+Invalid, 121.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96921 mSDsCounter, 682 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116214 IncrementalHoareTripleChecker+Invalid, 116896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 682 mSolverCounterUnsat, 8390 mSDtfsCounter, 116214 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12541 GetRequests, 9918 SyntacticMatches, 3 SemanticMatches, 2619 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117249 ImplicationChecksByTransitivity, 466.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70129occurred in iteration=46, InterpolantAutomatonStates: 1949, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 77.5s AutomataMinimizationTime, 46 MinimizatonAttempts, 186975 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 83.1s InterpolantComputationTime, 6342 NumberOfCodeBlocks, 5669 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 10736 ConstructedInterpolants, 3303 QuantifiedInterpolants, 175026 SizeOfPredicates, 288 NumberOfNonLiveVariables, 11704 ConjunctsInSsa, 532 ConjunctsInUnsatCore, 74 InterpolantComputations, 20 PerfectInterpolantSequences, 5338/15950 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown