/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/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 01:27:01,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 01:27:01,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 01:27:01,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 01:27:01,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 01:27:01,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 01:27:01,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 01:27:01,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 01:27:01,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 01:27:01,194 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 01:27:01,195 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 01:27:01,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 01:27:01,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 01:27:01,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 01:27:01,196 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 01:27:01,196 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 01:27:01,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 01:27:01,196 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 01:27:01,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 01:27:01,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 01:27:01,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 01:27:01,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 01:27:01,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 01:27:01,203 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 01:27:01,203 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 01:27:01,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 01:27:01,204 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:27:01,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 01:27:01,205 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 01:27:01,206 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 01:27:01,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 01:27:01,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 01:27:01,207 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 01:27:01,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 01:27:01,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 01:27:01,207 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 01:27:01,207 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 01:27:01,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 01:27:01,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 01:27:01,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 01:27:01,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 01:27:01,407 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 01:27:01,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2023-12-22 01:27:02,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 01:27:02,801 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 01:27:02,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2023-12-22 01:27:02,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73488abb0/d0b333ac63934be3a09b0890ca940fda/FLAGcdade2181 [2023-12-22 01:27:02,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73488abb0/d0b333ac63934be3a09b0890ca940fda [2023-12-22 01:27:02,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 01:27:02,841 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 01:27:02,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 01:27:02,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 01:27:02,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 01:27:02,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:27:02" (1/1) ... [2023-12-22 01:27:02,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675144bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:02, skipping insertion in model container [2023-12-22 01:27:02,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:27:02" (1/1) ... [2023-12-22 01:27:02,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 01:27:03,298 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2023-12-22 01:27:03,361 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2023-12-22 01:27:03,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:27:03,911 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 01:27:03,950 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[15482,15495] [2023-12-22 01:27:03,957 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c[22418,22431] [2023-12-22 01:27:04,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 01:27:04,307 INFO L206 MainTranslator]: Completed translation [2023-12-22 01:27:04,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04 WrapperNode [2023-12-22 01:27:04,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 01:27:04,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 01:27:04,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 01:27:04,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 01:27:04,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,469 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5125 [2023-12-22 01:27:04,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 01:27:04,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 01:27:04,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 01:27:04,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 01:27:04,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,504 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,612 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]. [2023-12-22 01:27:04,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 01:27:04,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 01:27:04,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 01:27:04,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 01:27:04,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (1/1) ... [2023-12-22 01:27:04,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 01:27:04,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 01:27:04,837 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) [2023-12-22 01:27:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 01:27:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 01:27:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 01:27:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 01:27:04,854 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 [2023-12-22 01:27:04,943 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 01:27:04,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 01:27:28,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 01:27:28,586 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 01:27:28,587 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 01:27:28,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:27:28 BoogieIcfgContainer [2023-12-22 01:27:28,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 01:27:28,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 01:27:28,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 01:27:28,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 01:27:28,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:27:02" (1/3) ... [2023-12-22 01:27:28,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b43c743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:27:28, skipping insertion in model container [2023-12-22 01:27:28,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:27:04" (2/3) ... [2023-12-22 01:27:28,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b43c743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:27:28, skipping insertion in model container [2023-12-22 01:27:28,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:27:28" (3/3) ... [2023-12-22 01:27:28,593 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label05.c [2023-12-22 01:27:28,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 01:27:28,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 01:27:28,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 01:27:28,653 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;@4dfeb05f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 01:27:28,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 01:27:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 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) [2023-12-22 01:27:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:27:28,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:28,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:28,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:28,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash -713532304, now seen corresponding path program 1 times [2023-12-22 01:27:28,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:28,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219619310] [2023-12-22 01:27:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:28,678 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 [2023-12-22 01:27:28,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:28,680 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) [2023-12-22 01:27:28,681 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 [2023-12-22 01:27:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:28,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 01:27:28,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:28,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:27:28,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219619310] [2023-12-22 01:27:28,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219619310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:27:28,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:27:28,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:27:28,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872078850] [2023-12-22 01:27:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:27:28,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 01:27:28,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 01:27:28,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:27:28,839 INFO L87 Difference]: Start difference. First operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-22 01:27:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:28,917 INFO L93 Difference]: Finished difference Result 1654 states and 3254 transitions. [2023-12-22 01:27:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 01:27:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2023-12-22 01:27:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:28,931 INFO L225 Difference]: With dead ends: 1654 [2023-12-22 01:27:28,931 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:27:28,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 01:27:28,938 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:28,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1599 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:27:28,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:27:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:27:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.896797153024911) internal successors, (1599), 844 states have internal predecessors, (1599), 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) [2023-12-22 01:27:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2023-12-22 01:27:29,021 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2023-12-22 01:27:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:29,021 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2023-12-22 01:27:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-22 01:27:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2023-12-22 01:27:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 01:27:29,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:29,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:27:29,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 01:27:29,225 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 [2023-12-22 01:27:29,226 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:29,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1892491250, now seen corresponding path program 1 times [2023-12-22 01:27:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:29,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067576539] [2023-12-22 01:27:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:29,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:29,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:29,238 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) [2023-12-22 01:27:29,260 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 [2023-12-22 01:27:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:29,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:27:29,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:29,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:27:29,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:29,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067576539] [2023-12-22 01:27:29,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067576539] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:27:29,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:27:29,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:27:29,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252936824] [2023-12-22 01:27:29,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:27:29,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:27:29,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:27:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:27:29,380 INFO L87 Difference]: Start difference. First operand 845 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-12-22 01:27:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:27:29,459 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2023-12-22 01:27:29,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:27:29,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2023-12-22 01:27:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:27:29,472 INFO L225 Difference]: With dead ends: 895 [2023-12-22 01:27:29,473 INFO L226 Difference]: Without dead ends: 845 [2023-12-22 01:27:29,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:27:29,474 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:27:29,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4744 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:27:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2023-12-22 01:27:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2023-12-22 01:27:29,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.849347568208778) internal successors, (1559), 844 states have internal predecessors, (1559), 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) [2023-12-22 01:27:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2023-12-22 01:27:29,496 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2023-12-22 01:27:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:27:29,496 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2023-12-22 01:27:29,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-12-22 01:27:29,496 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2023-12-22 01:27:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 01:27:29,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:27:29,501 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, 1, 1, 1] [2023-12-22 01:27:29,505 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 (3)] Ended with exit code 0 [2023-12-22 01:27:29,705 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 [2023-12-22 01:27:29,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:27:29,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:27:29,706 INFO L85 PathProgramCache]: Analyzing trace with hash 167656666, now seen corresponding path program 1 times [2023-12-22 01:27:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:27:29,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991128951] [2023-12-22 01:27:29,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:27:29,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:27:29,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:27:29,708 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) [2023-12-22 01:27:29,720 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 [2023-12-22 01:27:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:27:29,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:27:29,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:27:29,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:27:29,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:27:29,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:27:29,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991128951] [2023-12-22 01:27:29,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991128951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:27:29,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:27:29,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:27:29,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285117932] [2023-12-22 01:27:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:27:29,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:27:29,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:27:29,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:27:29,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:27:29,915 INFO L87 Difference]: Start difference. First operand 845 states and 1559 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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) [2023-12-22 01:28:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:02,517 INFO L93 Difference]: Finished difference Result 2349 states and 4432 transitions. [2023-12-22 01:28:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:02,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2023-12-22 01:28:02,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:02,523 INFO L225 Difference]: With dead ends: 2349 [2023-12-22 01:28:02,523 INFO L226 Difference]: Without dead ends: 1596 [2023-12-22 01:28:02,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:02,526 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 840 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:02,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 341 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2023-12-22 01:28:02,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2023-12-22 01:28:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1596. [2023-12-22 01:28:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1594 states have (on average 1.7503136762860727) internal successors, (2790), 1595 states have internal predecessors, (2790), 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) [2023-12-22 01:28:02,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2790 transitions. [2023-12-22 01:28:02,554 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2790 transitions. Word has length 59 [2023-12-22 01:28:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:02,555 INFO L495 AbstractCegarLoop]: Abstraction has 1596 states and 2790 transitions. [2023-12-22 01:28:02,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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) [2023-12-22 01:28:02,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2790 transitions. [2023-12-22 01:28:02,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 01:28:02,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:02,556 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, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:02,561 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 (4)] Ended with exit code 0 [2023-12-22 01:28:02,758 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 [2023-12-22 01:28:02,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:02,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:02,761 INFO L85 PathProgramCache]: Analyzing trace with hash -808348940, now seen corresponding path program 1 times [2023-12-22 01:28:02,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:02,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586145307] [2023-12-22 01:28:02,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:02,762 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 [2023-12-22 01:28:02,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:02,765 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) [2023-12-22 01:28:02,768 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 [2023-12-22 01:28:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:02,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:28:02,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:03,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:03,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:03,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586145307] [2023-12-22 01:28:03,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586145307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:03,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:03,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:28:03,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607378147] [2023-12-22 01:28:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:03,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:28:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:03,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:28:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:03,689 INFO L87 Difference]: Start difference. First operand 1596 states and 2790 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2023-12-22 01:28:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:03,934 INFO L93 Difference]: Finished difference Result 1925 states and 3322 transitions. [2023-12-22 01:28:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:28:03,935 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2023-12-22 01:28:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:03,942 INFO L225 Difference]: With dead ends: 1925 [2023-12-22 01:28:03,942 INFO L226 Difference]: Without dead ends: 1878 [2023-12-22 01:28:03,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:28:03,945 INFO L413 NwaCegarLoop]: 1553 mSDtfsCounter, 6349 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6349 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:03,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6349 Valid, 2109 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:28:03,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2023-12-22 01:28:03,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1686. [2023-12-22 01:28:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1684 states have (on average 1.744061757719715) internal successors, (2937), 1685 states have internal predecessors, (2937), 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) [2023-12-22 01:28:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2937 transitions. [2023-12-22 01:28:03,972 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2937 transitions. Word has length 62 [2023-12-22 01:28:03,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:03,973 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 2937 transitions. [2023-12-22 01:28:03,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2023-12-22 01:28:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2937 transitions. [2023-12-22 01:28:03,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 01:28:03,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:03,974 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:03,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 01:28:04,177 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 [2023-12-22 01:28:04,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:04,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash 431995268, now seen corresponding path program 1 times [2023-12-22 01:28:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:04,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353666190] [2023-12-22 01:28:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:04,179 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 [2023-12-22 01:28:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:04,180 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) [2023-12-22 01:28:04,211 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 [2023-12-22 01:28:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:04,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:04,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:04,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:04,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353666190] [2023-12-22 01:28:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353666190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:04,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095920926] [2023-12-22 01:28:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:04,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:04,333 INFO L87 Difference]: Start difference. First operand 1686 states and 2937 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-22 01:28:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:04,372 INFO L93 Difference]: Finished difference Result 1944 states and 3355 transitions. [2023-12-22 01:28:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:04,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2023-12-22 01:28:04,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:04,377 INFO L225 Difference]: With dead ends: 1944 [2023-12-22 01:28:04,377 INFO L226 Difference]: Without dead ends: 1807 [2023-12-22 01:28:04,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:04,378 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1488 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:04,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1625 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2023-12-22 01:28:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1805. [2023-12-22 01:28:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1803 states have (on average 1.7337770382695508) internal successors, (3126), 1804 states have internal predecessors, (3126), 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) [2023-12-22 01:28:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 3126 transitions. [2023-12-22 01:28:04,402 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 3126 transitions. Word has length 64 [2023-12-22 01:28:04,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:04,402 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 3126 transitions. [2023-12-22 01:28:04,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2023-12-22 01:28:04,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 3126 transitions. [2023-12-22 01:28:04,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-22 01:28:04,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:04,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:04,406 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 [2023-12-22 01:28:04,606 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 [2023-12-22 01:28:04,606 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:04,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash 444744363, now seen corresponding path program 1 times [2023-12-22 01:28:04,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:04,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474240116] [2023-12-22 01:28:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:04,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:04,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:04,610 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) [2023-12-22 01:28:04,626 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 [2023-12-22 01:28:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:04,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:28:04,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:04,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:04,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:04,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474240116] [2023-12-22 01:28:04,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474240116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:04,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:04,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 01:28:04,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092664769] [2023-12-22 01:28:04,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:04,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:28:04,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:04,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:28:04,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:28:04,730 INFO L87 Difference]: Start difference. First operand 1805 states and 3126 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-22 01:28:04,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:04,788 INFO L93 Difference]: Finished difference Result 1819 states and 3143 transitions. [2023-12-22 01:28:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:28:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2023-12-22 01:28:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:04,795 INFO L225 Difference]: With dead ends: 1819 [2023-12-22 01:28:04,795 INFO L226 Difference]: Without dead ends: 1817 [2023-12-22 01:28:04,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:28:04,796 INFO L413 NwaCegarLoop]: 1555 mSDtfsCounter, 1 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4657 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 [2023-12-22 01:28:04,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4657 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:04,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2023-12-22 01:28:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1813. [2023-12-22 01:28:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1811 states have (on average 1.729983434566538) internal successors, (3133), 1812 states have internal predecessors, (3133), 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) [2023-12-22 01:28:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 3133 transitions. [2023-12-22 01:28:04,825 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 3133 transitions. Word has length 65 [2023-12-22 01:28:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:04,826 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 3133 transitions. [2023-12-22 01:28:04,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2023-12-22 01:28:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 3133 transitions. [2023-12-22 01:28:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:04,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:04,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:04,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:05,032 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 [2023-12-22 01:28:05,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:05,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:05,033 INFO L85 PathProgramCache]: Analyzing trace with hash 239452988, now seen corresponding path program 1 times [2023-12-22 01:28:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110363722] [2023-12-22 01:28:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:05,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:05,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:05,035 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) [2023-12-22 01:28:05,039 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 [2023-12-22 01:28:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:05,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:05,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:05,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:05,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110363722] [2023-12-22 01:28:05,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110363722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:05,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:05,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118810716] [2023-12-22 01:28:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:05,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:05,177 INFO L87 Difference]: Start difference. First operand 1813 states and 3133 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:05,214 INFO L93 Difference]: Finished difference Result 2089 states and 3573 transitions. [2023-12-22 01:28:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:05,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:05,219 INFO L225 Difference]: With dead ends: 2089 [2023-12-22 01:28:05,219 INFO L226 Difference]: Without dead ends: 1946 [2023-12-22 01:28:05,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:05,220 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1504 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:05,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:05,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2023-12-22 01:28:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1944. [2023-12-22 01:28:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1942 states have (on average 1.719361483007209) internal successors, (3339), 1943 states have internal predecessors, (3339), 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) [2023-12-22 01:28:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 3339 transitions. [2023-12-22 01:28:05,246 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 3339 transitions. Word has length 66 [2023-12-22 01:28:05,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:05,246 INFO L495 AbstractCegarLoop]: Abstraction has 1944 states and 3339 transitions. [2023-12-22 01:28:05,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 3339 transitions. [2023-12-22 01:28:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:05,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:05,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:05,252 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 [2023-12-22 01:28:05,450 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 [2023-12-22 01:28:05,451 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:05,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -170933700, now seen corresponding path program 1 times [2023-12-22 01:28:05,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:05,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753624413] [2023-12-22 01:28:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:05,452 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 [2023-12-22 01:28:05,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:05,453 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) [2023-12-22 01:28:05,461 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 [2023-12-22 01:28:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:05,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:05,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:05,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:05,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:05,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753624413] [2023-12-22 01:28:05,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753624413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:05,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:05,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687940916] [2023-12-22 01:28:05,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:05,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:05,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:05,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:05,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:05,606 INFO L87 Difference]: Start difference. First operand 1944 states and 3339 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:05,639 INFO L93 Difference]: Finished difference Result 2694 states and 4522 transitions. [2023-12-22 01:28:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:05,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:05,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:05,646 INFO L225 Difference]: With dead ends: 2694 [2023-12-22 01:28:05,647 INFO L226 Difference]: Without dead ends: 2301 [2023-12-22 01:28:05,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:05,650 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 1502 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:05,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:05,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2023-12-22 01:28:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2299. [2023-12-22 01:28:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 2297 states have (on average 1.6930779277318242) internal successors, (3889), 2298 states have internal predecessors, (3889), 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) [2023-12-22 01:28:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3889 transitions. [2023-12-22 01:28:05,711 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3889 transitions. Word has length 66 [2023-12-22 01:28:05,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:05,711 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3889 transitions. [2023-12-22 01:28:05,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3889 transitions. [2023-12-22 01:28:05,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:05,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:05,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:05,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:05,915 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 [2023-12-22 01:28:05,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:05,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:05,915 INFO L85 PathProgramCache]: Analyzing trace with hash -399572932, now seen corresponding path program 1 times [2023-12-22 01:28:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64660910] [2023-12-22 01:28:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:05,916 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 [2023-12-22 01:28:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:05,917 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) [2023-12-22 01:28:05,918 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 [2023-12-22 01:28:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:05,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:05,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:06,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:06,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:06,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64660910] [2023-12-22 01:28:06,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64660910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:06,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:06,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:06,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769748403] [2023-12-22 01:28:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:06,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:06,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:06,045 INFO L87 Difference]: Start difference. First operand 2299 states and 3889 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:06,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:06,078 INFO L93 Difference]: Finished difference Result 3723 states and 6109 transitions. [2023-12-22 01:28:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:06,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:06,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:06,087 INFO L225 Difference]: With dead ends: 3723 [2023-12-22 01:28:06,087 INFO L226 Difference]: Without dead ends: 2975 [2023-12-22 01:28:06,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:06,089 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 1498 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:06,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:06,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2023-12-22 01:28:06,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2973. [2023-12-22 01:28:06,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2973 states, 2971 states have (on average 1.6549983170649614) internal successors, (4917), 2972 states have internal predecessors, (4917), 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) [2023-12-22 01:28:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2973 states to 2973 states and 4917 transitions. [2023-12-22 01:28:06,132 INFO L78 Accepts]: Start accepts. Automaton has 2973 states and 4917 transitions. Word has length 66 [2023-12-22 01:28:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:06,133 INFO L495 AbstractCegarLoop]: Abstraction has 2973 states and 4917 transitions. [2023-12-22 01:28:06,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2973 states and 4917 transitions. [2023-12-22 01:28:06,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:06,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:06,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:06,137 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 [2023-12-22 01:28:06,337 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 [2023-12-22 01:28:06,337 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:06,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1025228996, now seen corresponding path program 1 times [2023-12-22 01:28:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300882570] [2023-12-22 01:28:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:06,338 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 [2023-12-22 01:28:06,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:06,339 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) [2023-12-22 01:28:06,356 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 [2023-12-22 01:28:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:06,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:06,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:06,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:06,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:06,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300882570] [2023-12-22 01:28:06,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300882570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:06,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:06,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:06,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612825628] [2023-12-22 01:28:06,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:06,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:06,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:06,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:06,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:06,495 INFO L87 Difference]: Start difference. First operand 2973 states and 4917 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:06,540 INFO L93 Difference]: Finished difference Result 5673 states and 9067 transitions. [2023-12-22 01:28:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:06,551 INFO L225 Difference]: With dead ends: 5673 [2023-12-22 01:28:06,551 INFO L226 Difference]: Without dead ends: 4251 [2023-12-22 01:28:06,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:06,554 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 1496 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:06,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2023-12-22 01:28:06,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4249. [2023-12-22 01:28:06,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4249 states, 4247 states have (on average 1.6079585589828114) internal successors, (6829), 4248 states have internal predecessors, (6829), 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) [2023-12-22 01:28:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4249 states to 4249 states and 6829 transitions. [2023-12-22 01:28:06,617 INFO L78 Accepts]: Start accepts. Automaton has 4249 states and 6829 transitions. Word has length 66 [2023-12-22 01:28:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:06,617 INFO L495 AbstractCegarLoop]: Abstraction has 4249 states and 6829 transitions. [2023-12-22 01:28:06,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4249 states and 6829 transitions. [2023-12-22 01:28:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:06,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:06,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:06,625 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 [2023-12-22 01:28:06,822 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 [2023-12-22 01:28:06,823 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:06,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:06,823 INFO L85 PathProgramCache]: Analyzing trace with hash -136495556, now seen corresponding path program 1 times [2023-12-22 01:28:06,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:06,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994435374] [2023-12-22 01:28:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:06,824 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 [2023-12-22 01:28:06,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:06,824 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) [2023-12-22 01:28:06,825 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 [2023-12-22 01:28:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:06,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:06,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:06,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:06,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:06,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994435374] [2023-12-22 01:28:06,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994435374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:06,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:06,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292986883] [2023-12-22 01:28:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:06,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:06,934 INFO L87 Difference]: Start difference. First operand 4249 states and 6829 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:06,990 INFO L93 Difference]: Finished difference Result 9357 states and 14551 transitions. [2023-12-22 01:28:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:06,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:07,020 INFO L225 Difference]: With dead ends: 9357 [2023-12-22 01:28:07,020 INFO L226 Difference]: Without dead ends: 6659 [2023-12-22 01:28:07,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:07,025 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 1494 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:07,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2023-12-22 01:28:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6657. [2023-12-22 01:28:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6655 states have (on average 1.5574755822689708) internal successors, (10365), 6656 states have internal predecessors, (10365), 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) [2023-12-22 01:28:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 10365 transitions. [2023-12-22 01:28:07,136 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 10365 transitions. Word has length 66 [2023-12-22 01:28:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:07,136 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 10365 transitions. [2023-12-22 01:28:07,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 10365 transitions. [2023-12-22 01:28:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 01:28:07,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:07,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:07,140 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 [2023-12-22 01:28:07,340 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 [2023-12-22 01:28:07,340 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:07,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:07,341 INFO L85 PathProgramCache]: Analyzing trace with hash -439516868, now seen corresponding path program 1 times [2023-12-22 01:28:07,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:07,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189165710] [2023-12-22 01:28:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:07,341 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 [2023-12-22 01:28:07,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:07,342 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) [2023-12-22 01:28:07,343 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 [2023-12-22 01:28:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:07,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:07,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:07,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:07,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:07,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189165710] [2023-12-22 01:28:07,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189165710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:07,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:07,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:07,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654233706] [2023-12-22 01:28:07,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:07,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:07,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:07,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:07,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:07,458 INFO L87 Difference]: Start difference. First operand 6657 states and 10365 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:07,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:07,586 INFO L93 Difference]: Finished difference Result 16293 states and 24655 transitions. [2023-12-22 01:28:07,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-12-22 01:28:07,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:07,603 INFO L225 Difference]: With dead ends: 16293 [2023-12-22 01:28:07,604 INFO L226 Difference]: Without dead ends: 11187 [2023-12-22 01:28:07,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:07,610 INFO L413 NwaCegarLoop]: 1616 mSDtfsCounter, 1500 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:07,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1700 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11187 states. [2023-12-22 01:28:07,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11187 to 11185. [2023-12-22 01:28:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11183 states have (on average 1.5077349548421712) internal successors, (16861), 11184 states have internal predecessors, (16861), 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) [2023-12-22 01:28:07,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 16861 transitions. [2023-12-22 01:28:07,761 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 16861 transitions. Word has length 66 [2023-12-22 01:28:07,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:07,761 INFO L495 AbstractCegarLoop]: Abstraction has 11185 states and 16861 transitions. [2023-12-22 01:28:07,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-12-22 01:28:07,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 16861 transitions. [2023-12-22 01:28:07,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:28:07,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:07,763 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:07,768 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 [2023-12-22 01:28:07,966 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 [2023-12-22 01:28:07,966 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:07,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:07,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1981614661, now seen corresponding path program 1 times [2023-12-22 01:28:07,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:07,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079836928] [2023-12-22 01:28:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:07,967 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 [2023-12-22 01:28:07,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:07,968 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) [2023-12-22 01:28:07,976 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 [2023-12-22 01:28:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:08,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:08,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:08,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:09,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079836928] [2023-12-22 01:28:09,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079836928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:09,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:09,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506928781] [2023-12-22 01:28:09,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:09,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:09,292 INFO L87 Difference]: Start difference. First operand 11185 states and 16861 transitions. Second operand has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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) [2023-12-22 01:28:11,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:11,437 INFO L93 Difference]: Finished difference Result 32347 states and 47618 transitions. [2023-12-22 01:28:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:28:11,438 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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 [2023-12-22 01:28:11,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:11,479 INFO L225 Difference]: With dead ends: 32347 [2023-12-22 01:28:11,480 INFO L226 Difference]: Without dead ends: 25625 [2023-12-22 01:28:11,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 01:28:11,492 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 5211 mSDsluCounter, 12463 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 14029 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:11,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 14029 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 01:28:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25625 states. [2023-12-22 01:28:11,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25625 to 20817. [2023-12-22 01:28:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20817 states, 20815 states have (on average 1.484938746096565) internal successors, (30909), 20816 states have internal predecessors, (30909), 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) [2023-12-22 01:28:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20817 states to 20817 states and 30909 transitions. [2023-12-22 01:28:11,923 INFO L78 Accepts]: Start accepts. Automaton has 20817 states and 30909 transitions. Word has length 86 [2023-12-22 01:28:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:11,924 INFO L495 AbstractCegarLoop]: Abstraction has 20817 states and 30909 transitions. [2023-12-22 01:28:11,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.75) internal successors, (156), 16 states have internal predecessors, (156), 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) [2023-12-22 01:28:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand 20817 states and 30909 transitions. [2023-12-22 01:28:11,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-22 01:28:11,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:11,926 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:11,929 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 [2023-12-22 01:28:12,129 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 [2023-12-22 01:28:12,130 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:12,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:12,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1902965947, now seen corresponding path program 1 times [2023-12-22 01:28:12,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:12,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239911240] [2023-12-22 01:28:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:12,131 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 [2023-12-22 01:28:12,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:12,132 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) [2023-12-22 01:28:12,133 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 [2023-12-22 01:28:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:12,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:12,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:12,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:12,255 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:12,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239911240] [2023-12-22 01:28:12,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239911240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:12,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:12,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205369888] [2023-12-22 01:28:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:12,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:12,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:12,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:12,256 INFO L87 Difference]: Start difference. First operand 20817 states and 30909 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:28:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:12,479 INFO L93 Difference]: Finished difference Result 34281 states and 50804 transitions. [2023-12-22 01:28:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:12,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 [2023-12-22 01:28:12,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:12,505 INFO L225 Difference]: With dead ends: 34281 [2023-12-22 01:28:12,505 INFO L226 Difference]: Without dead ends: 15015 [2023-12-22 01:28:12,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:12,524 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 55 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:12,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3149 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15015 states. [2023-12-22 01:28:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15015 to 15008. [2023-12-22 01:28:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15008 states, 15006 states have (on average 1.4935359189657471) internal successors, (22412), 15007 states have internal predecessors, (22412), 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) [2023-12-22 01:28:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15008 states to 15008 states and 22412 transitions. [2023-12-22 01:28:12,825 INFO L78 Accepts]: Start accepts. Automaton has 15008 states and 22412 transitions. Word has length 86 [2023-12-22 01:28:12,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:12,825 INFO L495 AbstractCegarLoop]: Abstraction has 15008 states and 22412 transitions. [2023-12-22 01:28:12,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-12-22 01:28:12,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15008 states and 22412 transitions. [2023-12-22 01:28:12,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 01:28:12,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:12,827 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:12,830 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 [2023-12-22 01:28:13,030 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 [2023-12-22 01:28:13,030 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:13,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash -922338825, now seen corresponding path program 1 times [2023-12-22 01:28:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:13,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876726292] [2023-12-22 01:28:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:13,031 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 [2023-12-22 01:28:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:13,032 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) [2023-12-22 01:28:13,036 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 [2023-12-22 01:28:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:13,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:13,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:13,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:13,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:13,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876726292] [2023-12-22 01:28:13,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876726292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:13,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:13,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752557446] [2023-12-22 01:28:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:13,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:13,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:13,156 INFO L87 Difference]: Start difference. First operand 15008 states and 22412 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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) [2023-12-22 01:28:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:13,267 INFO L93 Difference]: Finished difference Result 21732 states and 32254 transitions. [2023-12-22 01:28:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:13,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 [2023-12-22 01:28:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:13,279 INFO L225 Difference]: With dead ends: 21732 [2023-12-22 01:28:13,279 INFO L226 Difference]: Without dead ends: 8290 [2023-12-22 01:28:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:13,291 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 51 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:13,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:13,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8290 states. [2023-12-22 01:28:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8290 to 8288. [2023-12-22 01:28:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8288 states, 8286 states have (on average 1.5056722181993725) internal successors, (12476), 8287 states have internal predecessors, (12476), 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) [2023-12-22 01:28:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8288 states to 8288 states and 12476 transitions. [2023-12-22 01:28:13,519 INFO L78 Accepts]: Start accepts. Automaton has 8288 states and 12476 transitions. Word has length 88 [2023-12-22 01:28:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:13,519 INFO L495 AbstractCegarLoop]: Abstraction has 8288 states and 12476 transitions. [2023-12-22 01:28:13,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2023-12-22 01:28:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8288 states and 12476 transitions. [2023-12-22 01:28:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-22 01:28:13,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:13,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:13,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:13,725 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 [2023-12-22 01:28:13,725 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:13,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:13,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1995928241, now seen corresponding path program 1 times [2023-12-22 01:28:13,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:13,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638331742] [2023-12-22 01:28:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:13,726 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 [2023-12-22 01:28:13,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:13,727 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) [2023-12-22 01:28:13,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 01:28:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:13,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:13,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:14,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:14,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:14,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638331742] [2023-12-22 01:28:14,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638331742] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:14,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:14,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:14,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087803004] [2023-12-22 01:28:14,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:14,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:14,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:14,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:14,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:14,947 INFO L87 Difference]: Start difference. First operand 8288 states and 12476 transitions. Second operand has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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) [2023-12-22 01:28:16,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:16,521 INFO L93 Difference]: Finished difference Result 27400 states and 39936 transitions. [2023-12-22 01:28:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:28:16,521 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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 89 [2023-12-22 01:28:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:16,539 INFO L225 Difference]: With dead ends: 27400 [2023-12-22 01:28:16,539 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:28:16,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:28:16,546 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 2105 mSDsluCounter, 12545 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 14165 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:16,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 14165 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:28:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:28:16,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 15584. [2023-12-22 01:28:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15584 states, 15582 states have (on average 1.4568091387498396) internal successors, (22700), 15583 states have internal predecessors, (22700), 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) [2023-12-22 01:28:16,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15584 states to 15584 states and 22700 transitions. [2023-12-22 01:28:16,891 INFO L78 Accepts]: Start accepts. Automaton has 15584 states and 22700 transitions. Word has length 89 [2023-12-22 01:28:16,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:16,891 INFO L495 AbstractCegarLoop]: Abstraction has 15584 states and 22700 transitions. [2023-12-22 01:28:16,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.25) internal successors, (164), 16 states have internal predecessors, (164), 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) [2023-12-22 01:28:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 15584 states and 22700 transitions. [2023-12-22 01:28:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 01:28:16,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:16,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:16,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 01:28:17,097 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 [2023-12-22 01:28:17,097 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:17,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:17,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1259536057, now seen corresponding path program 1 times [2023-12-22 01:28:17,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:17,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367143737] [2023-12-22 01:28:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:17,098 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 [2023-12-22 01:28:17,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:17,099 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) [2023-12-22 01:28:17,106 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 [2023-12-22 01:28:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:17,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:17,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:17,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:17,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:17,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367143737] [2023-12-22 01:28:17,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367143737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:17,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:17,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:17,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875297438] [2023-12-22 01:28:17,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:17,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:17,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:17,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:17,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:17,235 INFO L87 Difference]: Start difference. First operand 15584 states and 22700 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-22 01:28:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:17,396 INFO L93 Difference]: Finished difference Result 22596 states and 32686 transitions. [2023-12-22 01:28:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:17,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-22 01:28:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:17,405 INFO L225 Difference]: With dead ends: 22596 [2023-12-22 01:28:17,405 INFO L226 Difference]: Without dead ends: 8578 [2023-12-22 01:28:17,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:17,413 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 47 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:17,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8578 states. [2023-12-22 01:28:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8578 to 8576. [2023-12-22 01:28:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8576 states, 8574 states have (on average 1.4718917658035922) internal successors, (12620), 8575 states have internal predecessors, (12620), 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) [2023-12-22 01:28:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8576 states to 8576 states and 12620 transitions. [2023-12-22 01:28:17,559 INFO L78 Accepts]: Start accepts. Automaton has 8576 states and 12620 transitions. Word has length 91 [2023-12-22 01:28:17,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:17,559 INFO L495 AbstractCegarLoop]: Abstraction has 8576 states and 12620 transitions. [2023-12-22 01:28:17,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-22 01:28:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand 8576 states and 12620 transitions. [2023-12-22 01:28:17,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-22 01:28:17,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:17,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:17,573 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 [2023-12-22 01:28:17,764 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 [2023-12-22 01:28:17,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:17,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:17,765 INFO L85 PathProgramCache]: Analyzing trace with hash 645989679, now seen corresponding path program 1 times [2023-12-22 01:28:17,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:17,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893607133] [2023-12-22 01:28:17,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:17,765 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 [2023-12-22 01:28:17,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:17,766 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) [2023-12-22 01:28:17,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 01:28:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:17,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:17,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:18,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:18,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:18,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893607133] [2023-12-22 01:28:18,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893607133] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:18,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:18,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267046644] [2023-12-22 01:28:18,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:18,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:18,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:18,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:18,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:18,759 INFO L87 Difference]: Start difference. First operand 8576 states and 12620 transitions. Second operand has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2023-12-22 01:28:20,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:20,496 INFO L93 Difference]: Finished difference Result 27688 states and 39408 transitions. [2023-12-22 01:28:20,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:28:20,496 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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 92 [2023-12-22 01:28:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:20,513 INFO L225 Difference]: With dead ends: 27688 [2023-12-22 01:28:20,513 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:28:20,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:28:20,517 INFO L413 NwaCegarLoop]: 1602 mSDtfsCounter, 2067 mSDsluCounter, 14074 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 15676 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:20,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 15676 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:28:20,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:28:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 16160. [2023-12-22 01:28:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16160 states, 16158 states have (on average 1.4227008293105583) internal successors, (22988), 16159 states have internal predecessors, (22988), 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) [2023-12-22 01:28:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16160 states to 16160 states and 22988 transitions. [2023-12-22 01:28:20,915 INFO L78 Accepts]: Start accepts. Automaton has 16160 states and 22988 transitions. Word has length 92 [2023-12-22 01:28:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:20,915 INFO L495 AbstractCegarLoop]: Abstraction has 16160 states and 22988 transitions. [2023-12-22 01:28:20,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.75) internal successors, (172), 16 states have internal predecessors, (172), 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) [2023-12-22 01:28:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 16160 states and 22988 transitions. [2023-12-22 01:28:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-22 01:28:20,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:20,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:20,921 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 (19)] Ended with exit code 0 [2023-12-22 01:28:21,119 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 [2023-12-22 01:28:21,120 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:21,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:21,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1912047101, now seen corresponding path program 1 times [2023-12-22 01:28:21,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:21,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861479766] [2023-12-22 01:28:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:21,120 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 [2023-12-22 01:28:21,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:21,121 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) [2023-12-22 01:28:21,124 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 [2023-12-22 01:28:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:21,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:21,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:21,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:21,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:21,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861479766] [2023-12-22 01:28:21,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861479766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:21,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:21,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:21,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514797140] [2023-12-22 01:28:21,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:21,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:21,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:21,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:21,237 INFO L87 Difference]: Start difference. First operand 16160 states and 22988 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-22 01:28:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:21,428 INFO L93 Difference]: Finished difference Result 23460 states and 33118 transitions. [2023-12-22 01:28:21,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:21,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2023-12-22 01:28:21,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:21,437 INFO L225 Difference]: With dead ends: 23460 [2023-12-22 01:28:21,437 INFO L226 Difference]: Without dead ends: 8866 [2023-12-22 01:28:21,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:21,452 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 43 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:21,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2023-12-22 01:28:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 8864. [2023-12-22 01:28:21,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8864 states, 8862 states have (on average 1.4403069284585872) internal successors, (12764), 8863 states have internal predecessors, (12764), 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) [2023-12-22 01:28:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8864 states to 8864 states and 12764 transitions. [2023-12-22 01:28:21,616 INFO L78 Accepts]: Start accepts. Automaton has 8864 states and 12764 transitions. Word has length 94 [2023-12-22 01:28:21,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:21,616 INFO L495 AbstractCegarLoop]: Abstraction has 8864 states and 12764 transitions. [2023-12-22 01:28:21,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2023-12-22 01:28:21,616 INFO L276 IsEmpty]: Start isEmpty. Operand 8864 states and 12764 transitions. [2023-12-22 01:28:21,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-22 01:28:21,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:21,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:21,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-22 01:28:21,817 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 [2023-12-22 01:28:21,818 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:21,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:21,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1151103525, now seen corresponding path program 1 times [2023-12-22 01:28:21,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:21,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890907941] [2023-12-22 01:28:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:28:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:21,820 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) [2023-12-22 01:28:21,820 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 [2023-12-22 01:28:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:21,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:21,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:22,637 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:22,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:22,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890907941] [2023-12-22 01:28:22,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890907941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:22,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:22,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:22,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851675839] [2023-12-22 01:28:22,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:22,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:22,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:22,994 INFO L87 Difference]: Start difference. First operand 8864 states and 12764 transitions. Second operand has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2023-12-22 01:28:24,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:24,819 INFO L93 Difference]: Finished difference Result 27976 states and 38880 transitions. [2023-12-22 01:28:24,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:28:24,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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 95 [2023-12-22 01:28:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:24,841 INFO L225 Difference]: With dead ends: 27976 [2023-12-22 01:28:24,841 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:28:24,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:28:24,850 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 3524 mSDsluCounter, 10915 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3524 SdHoareTripleChecker+Valid, 12499 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:24,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3524 Valid, 12499 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:28:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:28:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 16736. [2023-12-22 01:28:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16736 states, 16734 states have (on average 1.3909405999760966) internal successors, (23276), 16735 states have internal predecessors, (23276), 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) [2023-12-22 01:28:25,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16736 states to 16736 states and 23276 transitions. [2023-12-22 01:28:25,309 INFO L78 Accepts]: Start accepts. Automaton has 16736 states and 23276 transitions. Word has length 95 [2023-12-22 01:28:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:25,310 INFO L495 AbstractCegarLoop]: Abstraction has 16736 states and 23276 transitions. [2023-12-22 01:28:25,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2023-12-22 01:28:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 16736 states and 23276 transitions. [2023-12-22 01:28:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-22 01:28:25,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:25,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:25,315 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 [2023-12-22 01:28:25,517 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 [2023-12-22 01:28:25,517 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:25,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -616385339, now seen corresponding path program 1 times [2023-12-22 01:28:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:25,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568230204] [2023-12-22 01:28:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:25,518 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 [2023-12-22 01:28:25,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:25,519 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) [2023-12-22 01:28:25,520 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 [2023-12-22 01:28:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:25,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:25,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:25,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:25,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:25,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568230204] [2023-12-22 01:28:25,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568230204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:25,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:25,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:25,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119532437] [2023-12-22 01:28:25,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:25,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:25,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:25,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:25,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:25,643 INFO L87 Difference]: Start difference. First operand 16736 states and 23276 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2023-12-22 01:28:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:25,841 INFO L93 Difference]: Finished difference Result 24324 states and 33550 transitions. [2023-12-22 01:28:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:25,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2023-12-22 01:28:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:25,850 INFO L225 Difference]: With dead ends: 24324 [2023-12-22 01:28:25,851 INFO L226 Difference]: Without dead ends: 9154 [2023-12-22 01:28:25,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:25,859 INFO L413 NwaCegarLoop]: 1576 mSDtfsCounter, 39 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:25,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3089 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:25,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9154 states. [2023-12-22 01:28:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9154 to 9152. [2023-12-22 01:28:26,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9152 states, 9150 states have (on average 1.410710382513661) internal successors, (12908), 9151 states have internal predecessors, (12908), 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) [2023-12-22 01:28:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9152 states to 9152 states and 12908 transitions. [2023-12-22 01:28:26,038 INFO L78 Accepts]: Start accepts. Automaton has 9152 states and 12908 transitions. Word has length 97 [2023-12-22 01:28:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:26,038 INFO L495 AbstractCegarLoop]: Abstraction has 9152 states and 12908 transitions. [2023-12-22 01:28:26,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2023-12-22 01:28:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 9152 states and 12908 transitions. [2023-12-22 01:28:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-22 01:28:26,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:26,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:26,042 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 [2023-12-22 01:28:26,242 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 [2023-12-22 01:28:26,243 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:26,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2036256419, now seen corresponding path program 1 times [2023-12-22 01:28:26,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:26,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980826261] [2023-12-22 01:28:26,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:26,243 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 [2023-12-22 01:28:26,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:26,244 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) [2023-12-22 01:28:26,245 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 [2023-12-22 01:28:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:26,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:26,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:27,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:27,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:27,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980826261] [2023-12-22 01:28:27,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980826261] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:27,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:27,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770527341] [2023-12-22 01:28:27,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:27,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:27,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:27,454 INFO L87 Difference]: Start difference. First operand 9152 states and 12908 transitions. Second operand has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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) [2023-12-22 01:28:29,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:29,156 INFO L93 Difference]: Finished difference Result 28264 states and 38352 transitions. [2023-12-22 01:28:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 01:28:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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 98 [2023-12-22 01:28:29,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:29,176 INFO L225 Difference]: With dead ends: 28264 [2023-12-22 01:28:29,176 INFO L226 Difference]: Without dead ends: 20678 [2023-12-22 01:28:29,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 01:28:29,182 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 3460 mSDsluCounter, 12365 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 13931 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:29,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 13931 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:28:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20678 states. [2023-12-22 01:28:29,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20678 to 17312. [2023-12-22 01:28:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17312 states, 17310 states have (on average 1.3612940496822645) internal successors, (23564), 17311 states have internal predecessors, (23564), 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) [2023-12-22 01:28:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17312 states to 17312 states and 23564 transitions. [2023-12-22 01:28:29,649 INFO L78 Accepts]: Start accepts. Automaton has 17312 states and 23564 transitions. Word has length 98 [2023-12-22 01:28:29,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:29,649 INFO L495 AbstractCegarLoop]: Abstraction has 17312 states and 23564 transitions. [2023-12-22 01:28:29,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.75) internal successors, (188), 16 states have internal predecessors, (188), 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) [2023-12-22 01:28:29,649 INFO L276 IsEmpty]: Start isEmpty. Operand 17312 states and 23564 transitions. [2023-12-22 01:28:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-22 01:28:29,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:29,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:29,654 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 [2023-12-22 01:28:29,854 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 [2023-12-22 01:28:29,854 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:29,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1955430385, now seen corresponding path program 1 times [2023-12-22 01:28:29,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:29,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673597000] [2023-12-22 01:28:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:29,855 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 [2023-12-22 01:28:29,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:29,856 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) [2023-12-22 01:28:29,857 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 [2023-12-22 01:28:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:29,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:28:29,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:29,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:29,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:29,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673597000] [2023-12-22 01:28:29,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673597000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:29,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:29,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:28:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29562177] [2023-12-22 01:28:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:29,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:29,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:29,996 INFO L87 Difference]: Start difference. First operand 17312 states and 23564 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-22 01:28:30,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:30,192 INFO L93 Difference]: Finished difference Result 25094 states and 33815 transitions. [2023-12-22 01:28:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:28:30,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2023-12-22 01:28:30,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:30,201 INFO L225 Difference]: With dead ends: 25094 [2023-12-22 01:28:30,201 INFO L226 Difference]: Without dead ends: 9348 [2023-12-22 01:28:30,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:30,210 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 35 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:30,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3074 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 01:28:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2023-12-22 01:28:30,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 9346. [2023-12-22 01:28:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9346 states, 9344 states have (on average 1.379066780821918) internal successors, (12886), 9345 states have internal predecessors, (12886), 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) [2023-12-22 01:28:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9346 states to 9346 states and 12886 transitions. [2023-12-22 01:28:30,455 INFO L78 Accepts]: Start accepts. Automaton has 9346 states and 12886 transitions. Word has length 100 [2023-12-22 01:28:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:30,455 INFO L495 AbstractCegarLoop]: Abstraction has 9346 states and 12886 transitions. [2023-12-22 01:28:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-22 01:28:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9346 states and 12886 transitions. [2023-12-22 01:28:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-22 01:28:30,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:30,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:30,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-22 01:28:30,657 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 [2023-12-22 01:28:30,657 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:30,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash 69299097, now seen corresponding path program 1 times [2023-12-22 01:28:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602972172] [2023-12-22 01:28:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:30,658 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 [2023-12-22 01:28:30,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:30,659 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) [2023-12-22 01:28:30,659 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 [2023-12-22 01:28:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:30,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 01:28:30,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:31,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:31,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:31,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602972172] [2023-12-22 01:28:31,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602972172] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:31,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:31,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 01:28:31,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281845010] [2023-12-22 01:28:31,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:31,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 01:28:31,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:31,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 01:28:31,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 01:28:31,705 INFO L87 Difference]: Start difference. First operand 9346 states and 12886 transitions. Second operand has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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) [2023-12-22 01:28:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:32,930 INFO L93 Difference]: Finished difference Result 23780 states and 31537 transitions. [2023-12-22 01:28:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 01:28:32,930 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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 101 [2023-12-22 01:28:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:32,943 INFO L225 Difference]: With dead ends: 23780 [2023-12-22 01:28:32,943 INFO L226 Difference]: Without dead ends: 16000 [2023-12-22 01:28:32,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 01:28:32,947 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 3352 mSDsluCounter, 12291 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 13839 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:32,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 13839 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-22 01:28:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16000 states. [2023-12-22 01:28:33,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16000 to 14878. [2023-12-22 01:28:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14878 states, 14876 states have (on average 1.3355068566819037) internal successors, (19867), 14877 states have internal predecessors, (19867), 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) [2023-12-22 01:28:33,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14878 states to 14878 states and 19867 transitions. [2023-12-22 01:28:33,331 INFO L78 Accepts]: Start accepts. Automaton has 14878 states and 19867 transitions. Word has length 101 [2023-12-22 01:28:33,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:33,332 INFO L495 AbstractCegarLoop]: Abstraction has 14878 states and 19867 transitions. [2023-12-22 01:28:33,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.25) internal successors, (196), 16 states have internal predecessors, (196), 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) [2023-12-22 01:28:33,332 INFO L276 IsEmpty]: Start isEmpty. Operand 14878 states and 19867 transitions. [2023-12-22 01:28:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 01:28:33,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:33,333 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:28:33,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2023-12-22 01:28:33,534 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 [2023-12-22 01:28:33,534 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:33,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1251832017, now seen corresponding path program 1 times [2023-12-22 01:28:33,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:33,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289923124] [2023-12-22 01:28:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:33,535 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 [2023-12-22 01:28:33,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:33,536 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) [2023-12-22 01:28:33,536 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 [2023-12-22 01:28:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:33,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:28:33,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:28:33,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:28:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 01:28:33,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289923124] [2023-12-22 01:28:33,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289923124] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:28:33,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:28:33,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 01:28:33,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246427711] [2023-12-22 01:28:33,947 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:28:33,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 01:28:33,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:33,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 01:28:33,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 01:28:33,948 INFO L87 Difference]: Start difference. First operand 14878 states and 19867 transitions. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2023-12-22 01:28:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:28:35,007 INFO L93 Difference]: Finished difference Result 52950 states and 68011 transitions. [2023-12-22 01:28:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 01:28:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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 103 [2023-12-22 01:28:35,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:28:35,050 INFO L225 Difference]: With dead ends: 52950 [2023-12-22 01:28:35,050 INFO L226 Difference]: Without dead ends: 39638 [2023-12-22 01:28:35,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 01:28:35,057 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 1608 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 3325 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:28:35,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 3325 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 01:28:35,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39638 states. [2023-12-22 01:28:36,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39638 to 38784. [2023-12-22 01:28:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38784 states, 38782 states have (on average 1.2515342169047496) internal successors, (48537), 38783 states have internal predecessors, (48537), 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) [2023-12-22 01:28:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38784 states to 38784 states and 48537 transitions. [2023-12-22 01:28:36,191 INFO L78 Accepts]: Start accepts. Automaton has 38784 states and 48537 transitions. Word has length 103 [2023-12-22 01:28:36,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:28:36,192 INFO L495 AbstractCegarLoop]: Abstraction has 38784 states and 48537 transitions. [2023-12-22 01:28:36,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2023-12-22 01:28:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 38784 states and 48537 transitions. [2023-12-22 01:28:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-22 01:28:36,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:28:36,195 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:28:36,199 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 [2023-12-22 01:28:36,398 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 [2023-12-22 01:28:36,399 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:28:36,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:28:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash 383608895, now seen corresponding path program 1 times [2023-12-22 01:28:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:28:36,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855043180] [2023-12-22 01:28:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:28:36,400 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 [2023-12-22 01:28:36,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:28:36,401 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) [2023-12-22 01:28:36,401 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 [2023-12-22 01:28:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:28:36,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:28:36,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:28:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:28:36,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:28:36,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:28:36,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855043180] [2023-12-22 01:28:36,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855043180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:28:36,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:28:36,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:28:36,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523003239] [2023-12-22 01:28:36,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:28:36,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:28:36,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:28:36,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:28:36,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:28:36,654 INFO L87 Difference]: Start difference. First operand 38784 states and 48537 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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) [2023-12-22 01:29:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:07,599 INFO L93 Difference]: Finished difference Result 41039 states and 52436 transitions. [2023-12-22 01:29:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:29:07,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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 124 [2023-12-22 01:29:07,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:07,647 INFO L225 Difference]: With dead ends: 41039 [2023-12-22 01:29:07,647 INFO L226 Difference]: Without dead ends: 39535 [2023-12-22 01:29:07,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:29:07,655 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 809 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:07,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 702 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time] [2023-12-22 01:29:07,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39535 states. [2023-12-22 01:29:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39535 to 39535. [2023-12-22 01:29:08,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39535 states, 39533 states have (on average 1.2497913135861178) internal successors, (49408), 39534 states have internal predecessors, (49408), 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) [2023-12-22 01:29:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39535 states to 39535 states and 49408 transitions. [2023-12-22 01:29:08,904 INFO L78 Accepts]: Start accepts. Automaton has 39535 states and 49408 transitions. Word has length 124 [2023-12-22 01:29:08,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:08,904 INFO L495 AbstractCegarLoop]: Abstraction has 39535 states and 49408 transitions. [2023-12-22 01:29:08,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 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) [2023-12-22 01:29:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 39535 states and 49408 transitions. [2023-12-22 01:29:08,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-22 01:29:08,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:08,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:29:08,914 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 [2023-12-22 01:29:09,110 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 [2023-12-22 01:29:09,110 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:09,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:09,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1821332958, now seen corresponding path program 1 times [2023-12-22 01:29:09,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:09,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151829475] [2023-12-22 01:29:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:29:09,111 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 [2023-12-22 01:29:09,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:09,112 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) [2023-12-22 01:29:09,113 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 [2023-12-22 01:29:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:29:09,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:29:09,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:29:09,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:09,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151829475] [2023-12-22 01:29:09,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151829475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:09,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:09,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:29:09,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444132356] [2023-12-22 01:29:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:09,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:29:09,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:29:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:29:09,268 INFO L87 Difference]: Start difference. First operand 39535 states and 49408 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2023-12-22 01:29:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:29:49,090 INFO L93 Difference]: Finished difference Result 44043 states and 56485 transitions. [2023-12-22 01:29:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:29:49,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 125 [2023-12-22 01:29:49,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:29:49,130 INFO L225 Difference]: With dead ends: 44043 [2023-12-22 01:29:49,130 INFO L226 Difference]: Without dead ends: 41788 [2023-12-22 01:29:49,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:29:49,137 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 818 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 3030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:29:49,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 762 Invalid, 3030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 38.7s Time] [2023-12-22 01:29:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41788 states. [2023-12-22 01:29:50,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41788 to 41788. [2023-12-22 01:29:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 41786 states have (on average 1.2489589814770496) internal successors, (52189), 41787 states have internal predecessors, (52189), 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) [2023-12-22 01:29:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 52189 transitions. [2023-12-22 01:29:50,266 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 52189 transitions. Word has length 125 [2023-12-22 01:29:50,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:29:50,267 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 52189 transitions. [2023-12-22 01:29:50,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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) [2023-12-22 01:29:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 52189 transitions. [2023-12-22 01:29:50,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-22 01:29:50,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:29:50,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 01:29:50,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-22 01:29:50,470 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 [2023-12-22 01:29:50,471 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:29:50,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:29:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1190301870, now seen corresponding path program 1 times [2023-12-22 01:29:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:29:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443985468] [2023-12-22 01:29:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:29:50,472 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 [2023-12-22 01:29:50,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:29:50,473 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) [2023-12-22 01:29:50,474 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 [2023-12-22 01:29:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:29:50,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 01:29:50,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:29:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:29:51,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:29:51,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:29:51,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443985468] [2023-12-22 01:29:51,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443985468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:29:51,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:29:51,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 01:29:51,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670034543] [2023-12-22 01:29:51,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:29:51,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 01:29:51,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:29:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 01:29:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:29:51,170 INFO L87 Difference]: Start difference. First operand 41788 states and 52189 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-22 01:30:22,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:22,859 INFO L93 Difference]: Finished difference Result 45581 states and 57674 transitions. [2023-12-22 01:30:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 01:30:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2023-12-22 01:30:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:22,912 INFO L225 Difference]: With dead ends: 45581 [2023-12-22 01:30:22,912 INFO L226 Difference]: Without dead ends: 42539 [2023-12-22 01:30:22,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 01:30:22,919 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 805 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:22,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 914 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2023-12-22 01:30:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42539 states. [2023-12-22 01:30:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42539 to 42539. [2023-12-22 01:30:24,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42539 states, 42537 states have (on average 1.2452923337329853) internal successors, (52971), 42538 states have internal predecessors, (52971), 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) [2023-12-22 01:30:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42539 states to 42539 states and 52971 transitions. [2023-12-22 01:30:24,129 INFO L78 Accepts]: Start accepts. Automaton has 42539 states and 52971 transitions. Word has length 130 [2023-12-22 01:30:24,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:24,129 INFO L495 AbstractCegarLoop]: Abstraction has 42539 states and 52971 transitions. [2023-12-22 01:30:24,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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) [2023-12-22 01:30:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 42539 states and 52971 transitions. [2023-12-22 01:30:24,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-22 01:30:24,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:24,140 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:30:24,142 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 [2023-12-22 01:30:24,340 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 [2023-12-22 01:30:24,340 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:24,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:24,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1888408497, now seen corresponding path program 1 times [2023-12-22 01:30:24,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:24,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038309957] [2023-12-22 01:30:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:24,341 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 [2023-12-22 01:30:24,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:24,342 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) [2023-12-22 01:30:24,343 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 [2023-12-22 01:30:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:24,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:30:24,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:25,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 54 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:26,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038309957] [2023-12-22 01:30:26,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038309957] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:26,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:26,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:30:26,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019559834] [2023-12-22 01:30:26,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:26,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:30:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:30:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:30:26,459 INFO L87 Difference]: Start difference. First operand 42539 states and 52971 transitions. Second operand has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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) [2023-12-22 01:30:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:29,363 INFO L93 Difference]: Finished difference Result 67487 states and 83962 transitions. [2023-12-22 01:30:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 01:30:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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 154 [2023-12-22 01:30:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:29,411 INFO L225 Difference]: With dead ends: 67487 [2023-12-22 01:30:29,412 INFO L226 Difference]: Without dead ends: 42981 [2023-12-22 01:30:29,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 01:30:29,427 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18127 mSDsluCounter, 8049 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18127 SdHoareTripleChecker+Valid, 9590 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:29,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18127 Valid, 9590 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 01:30:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42981 states. [2023-12-22 01:30:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42981 to 42539. [2023-12-22 01:30:30,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42539 states, 42537 states have (on average 1.2348308531396197) internal successors, (52526), 42538 states have internal predecessors, (52526), 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) [2023-12-22 01:30:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42539 states to 42539 states and 52526 transitions. [2023-12-22 01:30:30,965 INFO L78 Accepts]: Start accepts. Automaton has 42539 states and 52526 transitions. Word has length 154 [2023-12-22 01:30:30,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:30,965 INFO L495 AbstractCegarLoop]: Abstraction has 42539 states and 52526 transitions. [2023-12-22 01:30:30,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.76923076923077) internal successors, (280), 25 states have internal predecessors, (280), 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) [2023-12-22 01:30:30,966 INFO L276 IsEmpty]: Start isEmpty. Operand 42539 states and 52526 transitions. [2023-12-22 01:30:30,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-22 01:30:30,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:30,976 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:30:30,980 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 [2023-12-22 01:30:31,176 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 [2023-12-22 01:30:31,177 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:31,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:31,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2052295263, now seen corresponding path program 1 times [2023-12-22 01:30:31,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:31,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475119460] [2023-12-22 01:30:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:31,178 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 [2023-12-22 01:30:31,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:31,179 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) [2023-12-22 01:30:31,179 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 [2023-12-22 01:30:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:31,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:30:31,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:32,365 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:32,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:32,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475119460] [2023-12-22 01:30:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475119460] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:32,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:30:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747592040] [2023-12-22 01:30:32,873 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:32,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:30:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:32,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:30:32,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:30:32,875 INFO L87 Difference]: Start difference. First operand 42539 states and 52526 transitions. Second operand has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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) [2023-12-22 01:30:35,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:35,736 INFO L93 Difference]: Finished difference Result 66483 states and 82321 transitions. [2023-12-22 01:30:35,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:30:35,737 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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 155 [2023-12-22 01:30:35,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:35,792 INFO L225 Difference]: With dead ends: 66483 [2023-12-22 01:30:35,792 INFO L226 Difference]: Without dead ends: 50173 [2023-12-22 01:30:35,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:30:35,803 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 19853 mSDsluCounter, 8022 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19853 SdHoareTripleChecker+Valid, 9563 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:35,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19853 Valid, 9563 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 01:30:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50173 states. [2023-12-22 01:30:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50173 to 42539. [2023-12-22 01:30:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42539 states, 42537 states have (on average 1.2299409925476643) internal successors, (52318), 42538 states have internal predecessors, (52318), 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) [2023-12-22 01:30:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42539 states to 42539 states and 52318 transitions. [2023-12-22 01:30:37,381 INFO L78 Accepts]: Start accepts. Automaton has 42539 states and 52318 transitions. Word has length 155 [2023-12-22 01:30:37,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:37,381 INFO L495 AbstractCegarLoop]: Abstraction has 42539 states and 52318 transitions. [2023-12-22 01:30:37,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.0) internal successors, (286), 25 states have internal predecessors, (286), 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) [2023-12-22 01:30:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 42539 states and 52318 transitions. [2023-12-22 01:30:37,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-22 01:30:37,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:37,390 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:30:37,396 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 [2023-12-22 01:30:37,591 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 [2023-12-22 01:30:37,591 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:37,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:37,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1920798497, now seen corresponding path program 1 times [2023-12-22 01:30:37,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:37,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732749488] [2023-12-22 01:30:37,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:37,592 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 [2023-12-22 01:30:37,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:37,593 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) [2023-12-22 01:30:37,594 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 [2023-12-22 01:30:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:37,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:30:37,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:39,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 38 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:39,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:39,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732749488] [2023-12-22 01:30:39,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732749488] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:39,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:39,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:30:39,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203443797] [2023-12-22 01:30:39,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:39,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:30:39,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:39,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:30:39,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:30:39,687 INFO L87 Difference]: Start difference. First operand 42539 states and 52318 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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) [2023-12-22 01:30:42,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:42,972 INFO L93 Difference]: Finished difference Result 64395 states and 79357 transitions. [2023-12-22 01:30:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:30:42,973 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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 156 [2023-12-22 01:30:42,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:43,027 INFO L225 Difference]: With dead ends: 64395 [2023-12-22 01:30:43,027 INFO L226 Difference]: Without dead ends: 48541 [2023-12-22 01:30:43,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:30:43,042 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18419 mSDsluCounter, 7936 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18419 SdHoareTripleChecker+Valid, 9477 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:43,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18419 Valid, 9477 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:30:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48541 states. [2023-12-22 01:30:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48541 to 42539. [2023-12-22 01:30:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42539 states, 42537 states have (on average 1.2248630603944801) internal successors, (52102), 42538 states have internal predecessors, (52102), 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) [2023-12-22 01:30:44,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42539 states to 42539 states and 52102 transitions. [2023-12-22 01:30:44,665 INFO L78 Accepts]: Start accepts. Automaton has 42539 states and 52102 transitions. Word has length 156 [2023-12-22 01:30:44,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:44,666 INFO L495 AbstractCegarLoop]: Abstraction has 42539 states and 52102 transitions. [2023-12-22 01:30:44,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 25 states have internal predecessors, (292), 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) [2023-12-22 01:30:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 42539 states and 52102 transitions. [2023-12-22 01:30:44,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-22 01:30:44,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:44,676 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:30:44,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 01:30:44,878 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 [2023-12-22 01:30:44,879 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:44,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:44,879 INFO L85 PathProgramCache]: Analyzing trace with hash 180444655, now seen corresponding path program 1 times [2023-12-22 01:30:44,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:44,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353187959] [2023-12-22 01:30:44,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:44,880 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:30:44,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:44,881 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) [2023-12-22 01:30:44,881 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 [2023-12-22 01:30:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:44,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:30:44,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:46,425 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:46,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:46,966 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 30 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:46,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:46,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353187959] [2023-12-22 01:30:46,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353187959] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:46,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:46,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:30:46,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978469975] [2023-12-22 01:30:46,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:46,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:30:46,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:30:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:30:46,968 INFO L87 Difference]: Start difference. First operand 42539 states and 52102 transitions. Second operand has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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) [2023-12-22 01:30:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:30:50,187 INFO L93 Difference]: Finished difference Result 62067 states and 76081 transitions. [2023-12-22 01:30:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:30:50,188 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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 157 [2023-12-22 01:30:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:30:50,235 INFO L225 Difference]: With dead ends: 62067 [2023-12-22 01:30:50,235 INFO L226 Difference]: Without dead ends: 46741 [2023-12-22 01:30:50,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:30:50,248 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 18474 mSDsluCounter, 8063 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18474 SdHoareTripleChecker+Valid, 9604 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-22 01:30:50,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18474 Valid, 9604 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-22 01:30:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46741 states. [2023-12-22 01:30:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46741 to 42539. [2023-12-22 01:30:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42539 states, 42537 states have (on average 1.2196910924606812) internal successors, (51882), 42538 states have internal predecessors, (51882), 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) [2023-12-22 01:30:51,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42539 states to 42539 states and 51882 transitions. [2023-12-22 01:30:51,949 INFO L78 Accepts]: Start accepts. Automaton has 42539 states and 51882 transitions. Word has length 157 [2023-12-22 01:30:51,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:30:51,949 INFO L495 AbstractCegarLoop]: Abstraction has 42539 states and 51882 transitions. [2023-12-22 01:30:51,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.461538461538462) internal successors, (298), 25 states have internal predecessors, (298), 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) [2023-12-22 01:30:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42539 states and 51882 transitions. [2023-12-22 01:30:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:30:51,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:30:51,959 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:30:51,966 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 [2023-12-22 01:30:52,159 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 [2023-12-22 01:30:52,160 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:30:52,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:30:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1029455779, now seen corresponding path program 1 times [2023-12-22 01:30:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:30:52,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394494724] [2023-12-22 01:30:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:30:52,160 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 [2023-12-22 01:30:52,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:30:52,161 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) [2023-12-22 01:30:52,162 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 [2023-12-22 01:30:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:30:52,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:30:52,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:30:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:53,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:30:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 30 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:30:54,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:30:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394494724] [2023-12-22 01:30:54,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394494724] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:30:54,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:30:54,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:30:54,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329506908] [2023-12-22 01:30:54,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:30:54,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:30:54,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:30:54,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:30:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:30:54,732 INFO L87 Difference]: Start difference. First operand 42539 states and 51882 transitions. Second operand has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2023-12-22 01:31:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:02,979 INFO L93 Difference]: Finished difference Result 68683 states and 83527 transitions. [2023-12-22 01:31:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:31:02,979 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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 158 [2023-12-22 01:31:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:03,047 INFO L225 Difference]: With dead ends: 68683 [2023-12-22 01:31:03,047 INFO L226 Difference]: Without dead ends: 62185 [2023-12-22 01:31:03,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:31:03,061 INFO L413 NwaCegarLoop]: 1664 mSDtfsCounter, 5264 mSDsluCounter, 24221 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5264 SdHoareTripleChecker+Valid, 25885 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:03,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5264 Valid, 25885 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-22 01:31:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62185 states. [2023-12-22 01:31:04,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62185 to 31179. [2023-12-22 01:31:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31179 states, 31177 states have (on average 1.2280527311800367) internal successors, (38287), 31178 states have internal predecessors, (38287), 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) [2023-12-22 01:31:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31179 states to 31179 states and 38287 transitions. [2023-12-22 01:31:04,586 INFO L78 Accepts]: Start accepts. Automaton has 31179 states and 38287 transitions. Word has length 158 [2023-12-22 01:31:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:04,586 INFO L495 AbstractCegarLoop]: Abstraction has 31179 states and 38287 transitions. [2023-12-22 01:31:04,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.576923076923077) internal successors, (301), 26 states have internal predecessors, (301), 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) [2023-12-22 01:31:04,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31179 states and 38287 transitions. [2023-12-22 01:31:04,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 01:31:04,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:04,591 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:31:04,594 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 [2023-12-22 01:31:04,792 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 [2023-12-22 01:31:04,793 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:04,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1216225681, now seen corresponding path program 1 times [2023-12-22 01:31:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:04,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414151818] [2023-12-22 01:31:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:04,794 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 [2023-12-22 01:31:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:04,794 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) [2023-12-22 01:31:04,795 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 [2023-12-22 01:31:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:04,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 01:31:04,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:06,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 22 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:06,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:06,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414151818] [2023-12-22 01:31:06,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1414151818] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:06,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:06,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 01:31:06,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698135927] [2023-12-22 01:31:06,646 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:06,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:31:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:06,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:31:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:31:06,647 INFO L87 Difference]: Start difference. First operand 31179 states and 38287 transitions. Second operand has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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) [2023-12-22 01:31:09,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:09,661 INFO L93 Difference]: Finished difference Result 43577 states and 53374 transitions. [2023-12-22 01:31:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 01:31:09,662 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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 158 [2023-12-22 01:31:09,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:09,691 INFO L225 Difference]: With dead ends: 43577 [2023-12-22 01:31:09,691 INFO L226 Difference]: Without dead ends: 32897 [2023-12-22 01:31:09,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 01:31:09,700 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 13623 mSDsluCounter, 8110 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13623 SdHoareTripleChecker+Valid, 9651 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:09,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13623 Valid, 9651 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-22 01:31:09,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32897 states. [2023-12-22 01:31:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32897 to 31179. [2023-12-22 01:31:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31179 states, 31177 states have (on average 1.222792443147192) internal successors, (38123), 31178 states have internal predecessors, (38123), 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) [2023-12-22 01:31:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31179 states to 31179 states and 38123 transitions. [2023-12-22 01:31:11,025 INFO L78 Accepts]: Start accepts. Automaton has 31179 states and 38123 transitions. Word has length 158 [2023-12-22 01:31:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:11,025 INFO L495 AbstractCegarLoop]: Abstraction has 31179 states and 38123 transitions. [2023-12-22 01:31:11,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.692307692307692) internal successors, (304), 25 states have internal predecessors, (304), 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) [2023-12-22 01:31:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 31179 states and 38123 transitions. [2023-12-22 01:31:11,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:31:11,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:11,030 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:31:11,034 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 [2023-12-22 01:31:11,231 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 [2023-12-22 01:31:11,231 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:11,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:11,231 INFO L85 PathProgramCache]: Analyzing trace with hash 806814079, now seen corresponding path program 1 times [2023-12-22 01:31:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374608704] [2023-12-22 01:31:11,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:11,232 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 [2023-12-22 01:31:11,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:11,233 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) [2023-12-22 01:31:11,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 01:31:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:11,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:31:11,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:12,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:13,640 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 13 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:13,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374608704] [2023-12-22 01:31:13,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374608704] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:13,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:13,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:31:13,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671213937] [2023-12-22 01:31:13,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:13,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:31:13,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:13,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:31:13,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:31:13,642 INFO L87 Difference]: Start difference. First operand 31179 states and 38123 transitions. Second operand has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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) [2023-12-22 01:31:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:20,494 INFO L93 Difference]: Finished difference Result 49295 states and 59563 transitions. [2023-12-22 01:31:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 01:31:20,494 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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 159 [2023-12-22 01:31:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:20,526 INFO L225 Difference]: With dead ends: 49295 [2023-12-22 01:31:20,526 INFO L226 Difference]: Without dead ends: 36805 [2023-12-22 01:31:20,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 01:31:20,533 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 5123 mSDsluCounter, 26747 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 28378 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:20,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5123 Valid, 28378 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-22 01:31:20,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36805 states. [2023-12-22 01:31:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36805 to 21461. [2023-12-22 01:31:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21461 states, 21459 states have (on average 1.2313714525373969) internal successors, (26424), 21460 states have internal predecessors, (26424), 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) [2023-12-22 01:31:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21461 states to 21461 states and 26424 transitions. [2023-12-22 01:31:21,618 INFO L78 Accepts]: Start accepts. Automaton has 21461 states and 26424 transitions. Word has length 159 [2023-12-22 01:31:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:21,618 INFO L495 AbstractCegarLoop]: Abstraction has 21461 states and 26424 transitions. [2023-12-22 01:31:21,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.0) internal successors, (312), 26 states have internal predecessors, (312), 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) [2023-12-22 01:31:21,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21461 states and 26424 transitions. [2023-12-22 01:31:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:31:21,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:21,621 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:31:21,624 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 [2023-12-22 01:31:21,821 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 [2023-12-22 01:31:21,821 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:21,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:21,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1161519651, now seen corresponding path program 1 times [2023-12-22 01:31:21,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:21,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645887909] [2023-12-22 01:31:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:21,822 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 [2023-12-22 01:31:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:21,823 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) [2023-12-22 01:31:21,824 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 [2023-12-22 01:31:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:21,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:31:21,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:23,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 22 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:24,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645887909] [2023-12-22 01:31:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645887909] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:24,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:24,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:31:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894451251] [2023-12-22 01:31:24,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:24,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:31:24,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:31:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:31:24,276 INFO L87 Difference]: Start difference. First operand 21461 states and 26424 transitions. Second operand has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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) [2023-12-22 01:31:32,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:32,224 INFO L93 Difference]: Finished difference Result 54733 states and 65893 transitions. [2023-12-22 01:31:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:31:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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 159 [2023-12-22 01:31:32,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:32,280 INFO L225 Difference]: With dead ends: 54733 [2023-12-22 01:31:32,280 INFO L226 Difference]: Without dead ends: 51071 [2023-12-22 01:31:32,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:31:32,290 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 5303 mSDsluCounter, 24027 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5303 SdHoareTripleChecker+Valid, 25678 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:32,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5303 Valid, 25678 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 01:31:32,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51071 states. [2023-12-22 01:31:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51071 to 43480. [2023-12-22 01:31:34,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43480 states, 43478 states have (on average 1.2083812502875018) internal successors, (52538), 43479 states have internal predecessors, (52538), 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) [2023-12-22 01:31:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43480 states to 43480 states and 52538 transitions. [2023-12-22 01:31:34,715 INFO L78 Accepts]: Start accepts. Automaton has 43480 states and 52538 transitions. Word has length 159 [2023-12-22 01:31:34,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:34,715 INFO L495 AbstractCegarLoop]: Abstraction has 43480 states and 52538 transitions. [2023-12-22 01:31:34,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.807692307692308) internal successors, (307), 26 states have internal predecessors, (307), 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) [2023-12-22 01:31:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 43480 states and 52538 transitions. [2023-12-22 01:31:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:31:34,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:34,720 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:31:34,724 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 [2023-12-22 01:31:34,921 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 [2023-12-22 01:31:34,921 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:34,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -849564765, now seen corresponding path program 1 times [2023-12-22 01:31:34,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:34,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105682043] [2023-12-22 01:31:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:34,922 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 [2023-12-22 01:31:34,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:34,923 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) [2023-12-22 01:31:34,924 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 [2023-12-22 01:31:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:35,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:31:35,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:37,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:37,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:37,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105682043] [2023-12-22 01:31:37,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105682043] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:37,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:37,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:31:37,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147836315] [2023-12-22 01:31:37,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:37,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:31:37,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:37,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:31:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:31:37,697 INFO L87 Difference]: Start difference. First operand 43480 states and 52538 transitions. Second operand has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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) [2023-12-22 01:31:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:31:46,147 INFO L93 Difference]: Finished difference Result 74754 states and 89817 transitions. [2023-12-22 01:31:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 01:31:46,148 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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 159 [2023-12-22 01:31:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:31:46,218 INFO L225 Difference]: With dead ends: 74754 [2023-12-22 01:31:46,218 INFO L226 Difference]: Without dead ends: 65572 [2023-12-22 01:31:46,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 01:31:46,227 INFO L413 NwaCegarLoop]: 1674 mSDtfsCounter, 2381 mSDsluCounter, 22858 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 24532 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 01:31:46,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 24532 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 01:31:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65572 states. [2023-12-22 01:31:48,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65572 to 53327. [2023-12-22 01:31:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53327 states, 53325 states have (on average 1.203300515705579) internal successors, (64166), 53326 states have internal predecessors, (64166), 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) [2023-12-22 01:31:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53327 states to 53327 states and 64166 transitions. [2023-12-22 01:31:49,012 INFO L78 Accepts]: Start accepts. Automaton has 53327 states and 64166 transitions. Word has length 159 [2023-12-22 01:31:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:31:49,012 INFO L495 AbstractCegarLoop]: Abstraction has 53327 states and 64166 transitions. [2023-12-22 01:31:49,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.423076923076923) internal successors, (297), 26 states have internal predecessors, (297), 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) [2023-12-22 01:31:49,012 INFO L276 IsEmpty]: Start isEmpty. Operand 53327 states and 64166 transitions. [2023-12-22 01:31:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:31:49,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:31:49,018 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:31:49,022 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 [2023-12-22 01:31:49,219 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 [2023-12-22 01:31:49,219 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:31:49,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:31:49,220 INFO L85 PathProgramCache]: Analyzing trace with hash -2141294977, now seen corresponding path program 1 times [2023-12-22 01:31:49,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:31:49,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499692799] [2023-12-22 01:31:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:31:49,220 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 [2023-12-22 01:31:49,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:31:49,221 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) [2023-12-22 01:31:49,223 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 [2023-12-22 01:31:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:31:49,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:31:49,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:31:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:50,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:31:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 49 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:31:51,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:31:51,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499692799] [2023-12-22 01:31:51,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499692799] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:31:51,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:31:51,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:31:51,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850319915] [2023-12-22 01:31:51,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:31:51,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:31:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:31:51,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:31:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:31:51,309 INFO L87 Difference]: Start difference. First operand 53327 states and 64166 transitions. Second operand has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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) [2023-12-22 01:32:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:01,775 INFO L93 Difference]: Finished difference Result 93931 states and 112284 transitions. [2023-12-22 01:32:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 01:32:01,776 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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 159 [2023-12-22 01:32:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:01,855 INFO L225 Difference]: With dead ends: 93931 [2023-12-22 01:32:01,855 INFO L226 Difference]: Without dead ends: 81443 [2023-12-22 01:32:01,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 01:32:01,864 INFO L413 NwaCegarLoop]: 1679 mSDtfsCounter, 3639 mSDsluCounter, 32305 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 33984 SdHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:01,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 33984 Invalid, 3541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-22 01:32:01,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81443 states. [2023-12-22 01:32:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81443 to 63885. [2023-12-22 01:32:05,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63885 states, 63883 states have (on average 1.1983939389195875) internal successors, (76557), 63884 states have internal predecessors, (76557), 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) [2023-12-22 01:32:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63885 states to 63885 states and 76557 transitions. [2023-12-22 01:32:05,493 INFO L78 Accepts]: Start accepts. Automaton has 63885 states and 76557 transitions. Word has length 159 [2023-12-22 01:32:05,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:32:05,493 INFO L495 AbstractCegarLoop]: Abstraction has 63885 states and 76557 transitions. [2023-12-22 01:32:05,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.23076923076923) internal successors, (292), 26 states have internal predecessors, (292), 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) [2023-12-22 01:32:05,493 INFO L276 IsEmpty]: Start isEmpty. Operand 63885 states and 76557 transitions. [2023-12-22 01:32:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 01:32:05,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:32:05,499 INFO L195 NwaCegarLoop]: trace histogram [4, 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, 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] [2023-12-22 01:32:05,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-12-22 01:32:05,700 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 [2023-12-22 01:32:05,700 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:32:05,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:32:05,701 INFO L85 PathProgramCache]: Analyzing trace with hash 160437539, now seen corresponding path program 1 times [2023-12-22 01:32:05,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:32:05,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [339856599] [2023-12-22 01:32:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:32:05,701 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 [2023-12-22 01:32:05,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:32:05,702 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) [2023-12-22 01:32:05,704 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 [2023-12-22 01:32:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:32:05,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 01:32:05,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:32:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:07,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:32:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 58 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:08,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:32:08,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [339856599] [2023-12-22 01:32:08,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [339856599] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:32:08,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:32:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 01:32:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313020857] [2023-12-22 01:32:08,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:32:08,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 01:32:08,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:32:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 01:32:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 01:32:08,030 INFO L87 Difference]: Start difference. First operand 63885 states and 76557 transitions. Second operand has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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) [2023-12-22 01:32:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:32:23,321 INFO L93 Difference]: Finished difference Result 180037 states and 211827 transitions. [2023-12-22 01:32:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 01:32:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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 159 [2023-12-22 01:32:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:32:23,508 INFO L225 Difference]: With dead ends: 180037 [2023-12-22 01:32:23,508 INFO L226 Difference]: Without dead ends: 162655 [2023-12-22 01:32:23,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1355 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 01:32:23,526 INFO L413 NwaCegarLoop]: 1700 mSDtfsCounter, 6957 mSDsluCounter, 24450 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6957 SdHoareTripleChecker+Valid, 26150 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-22 01:32:23,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6957 Valid, 26150 Invalid, 3079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-22 01:32:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162655 states. [2023-12-22 01:32:31,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162655 to 120135. [2023-12-22 01:32:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120135 states, 120133 states have (on average 1.1853945210724781) internal successors, (142405), 120134 states have internal predecessors, (142405), 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) [2023-12-22 01:32:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120135 states to 120135 states and 142405 transitions. [2023-12-22 01:32:31,439 INFO L78 Accepts]: Start accepts. Automaton has 120135 states and 142405 transitions. Word has length 159 [2023-12-22 01:32:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:32:31,439 INFO L495 AbstractCegarLoop]: Abstraction has 120135 states and 142405 transitions. [2023-12-22 01:32:31,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 11.038461538461538) internal successors, (287), 26 states have internal predecessors, (287), 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) [2023-12-22 01:32:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 120135 states and 142405 transitions. [2023-12-22 01:32:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:32:31,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:32:31,483 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:32:31,495 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 [2023-12-22 01:32:31,687 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 [2023-12-22 01:32:31,688 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:32:31,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:32:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash -488304027, now seen corresponding path program 1 times [2023-12-22 01:32:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:32:31,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871201653] [2023-12-22 01:32:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:32:31,689 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 [2023-12-22 01:32:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:32:31,690 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) [2023-12-22 01:32:31,692 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 [2023-12-22 01:32:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:32:31,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:32:31,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:32:34,173 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:34,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:32:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 54 proven. 280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:32:35,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:32:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871201653] [2023-12-22 01:32:35,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871201653] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:32:35,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:32:35,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:32:35,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050933592] [2023-12-22 01:32:35,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:32:35,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:32:35,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:32:35,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:32:35,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:32:35,298 INFO L87 Difference]: Start difference. First operand 120135 states and 142405 transitions. Second operand has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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) [2023-12-22 01:33:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:01,518 INFO L93 Difference]: Finished difference Result 163973 states and 194387 transitions. [2023-12-22 01:33:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:33:01,518 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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 217 [2023-12-22 01:33:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:01,681 INFO L225 Difference]: With dead ends: 163973 [2023-12-22 01:33:01,681 INFO L226 Difference]: Without dead ends: 152993 [2023-12-22 01:33:01,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4412 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:33:01,701 INFO L413 NwaCegarLoop]: 1800 mSDtfsCounter, 4251 mSDsluCounter, 38163 mSDsCounter, 0 mSdLazyCounter, 7699 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4251 SdHoareTripleChecker+Valid, 39963 SdHoareTripleChecker+Invalid, 7724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:01,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4251 Valid, 39963 Invalid, 7724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7699 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-12-22 01:33:01,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152993 states. [2023-12-22 01:33:06,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152993 to 64970. [2023-12-22 01:33:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64970 states, 64968 states have (on average 1.1940493781553996) internal successors, (77575), 64969 states have internal predecessors, (77575), 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) [2023-12-22 01:33:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64970 states to 64970 states and 77575 transitions. [2023-12-22 01:33:07,173 INFO L78 Accepts]: Start accepts. Automaton has 64970 states and 77575 transitions. Word has length 217 [2023-12-22 01:33:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:07,173 INFO L495 AbstractCegarLoop]: Abstraction has 64970 states and 77575 transitions. [2023-12-22 01:33:07,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.61111111111111) internal successors, (418), 36 states have internal predecessors, (418), 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) [2023-12-22 01:33:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 64970 states and 77575 transitions. [2023-12-22 01:33:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:33:07,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:07,189 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:33:07,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-22 01:33:07,390 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 [2023-12-22 01:33:07,390 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:07,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:07,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1666075621, now seen corresponding path program 2 times [2023-12-22 01:33:07,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:07,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326084696] [2023-12-22 01:33:07,391 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:33:07,391 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 [2023-12-22 01:33:07,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:07,392 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) [2023-12-22 01:33:07,393 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 [2023-12-22 01:33:07,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:33:07,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:33:07,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:33:07,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-22 01:33:09,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:33:09,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:09,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326084696] [2023-12-22 01:33:09,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326084696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:33:09,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:33:09,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:33:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120788063] [2023-12-22 01:33:09,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:33:09,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:33:09,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:33:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:09,906 INFO L87 Difference]: Start difference. First operand 64970 states and 77575 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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) [2023-12-22 01:33:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:15,187 INFO L93 Difference]: Finished difference Result 94586 states and 113999 transitions. [2023-12-22 01:33:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:33:15,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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 217 [2023-12-22 01:33:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:15,283 INFO L225 Difference]: With dead ends: 94586 [2023-12-22 01:33:15,284 INFO L226 Difference]: Without dead ends: 80733 [2023-12-22 01:33:15,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:15,298 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 3307 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3307 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:15,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3307 Valid, 3530 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:33:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80733 states. [2023-12-22 01:33:20,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80733 to 64872. [2023-12-22 01:33:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64872 states, 64870 states have (on average 1.1875443194080468) internal successors, (77036), 64871 states have internal predecessors, (77036), 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) [2023-12-22 01:33:20,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64872 states to 64872 states and 77036 transitions. [2023-12-22 01:33:20,461 INFO L78 Accepts]: Start accepts. Automaton has 64872 states and 77036 transitions. Word has length 217 [2023-12-22 01:33:20,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:20,462 INFO L495 AbstractCegarLoop]: Abstraction has 64872 states and 77036 transitions. [2023-12-22 01:33:20,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 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) [2023-12-22 01:33:20,462 INFO L276 IsEmpty]: Start isEmpty. Operand 64872 states and 77036 transitions. [2023-12-22 01:33:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:33:20,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:20,482 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:33:20,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-12-22 01:33:20,684 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 [2023-12-22 01:33:20,685 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:20,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:20,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2020781193, now seen corresponding path program 2 times [2023-12-22 01:33:20,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:20,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151748168] [2023-12-22 01:33:20,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:33:20,686 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 [2023-12-22 01:33:20,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:20,687 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) [2023-12-22 01:33:20,688 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 [2023-12-22 01:33:20,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:33:20,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:33:20,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:33:20,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-12-22 01:33:23,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:33:23,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151748168] [2023-12-22 01:33:23,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151748168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:33:23,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:33:23,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:33:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299896282] [2023-12-22 01:33:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:33:23,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:33:23,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:33:23,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:23,750 INFO L87 Difference]: Start difference. First operand 64872 states and 77036 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2023-12-22 01:33:29,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:29,092 INFO L93 Difference]: Finished difference Result 87159 states and 104716 transitions. [2023-12-22 01:33:29,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:33:29,094 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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 217 [2023-12-22 01:33:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:29,294 INFO L225 Difference]: With dead ends: 87159 [2023-12-22 01:33:29,294 INFO L226 Difference]: Without dead ends: 82384 [2023-12-22 01:33:29,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:29,306 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 4820 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4820 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:29,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4820 Valid, 3458 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:33:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82384 states. [2023-12-22 01:33:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82384 to 68935. [2023-12-22 01:33:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68935 states, 68933 states have (on average 1.1854554422410166) internal successors, (81717), 68934 states have internal predecessors, (81717), 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) [2023-12-22 01:33:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68935 states to 68935 states and 81717 transitions. [2023-12-22 01:33:34,698 INFO L78 Accepts]: Start accepts. Automaton has 68935 states and 81717 transitions. Word has length 217 [2023-12-22 01:33:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:34,699 INFO L495 AbstractCegarLoop]: Abstraction has 68935 states and 81717 transitions. [2023-12-22 01:33:34,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2023-12-22 01:33:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 68935 states and 81717 transitions. [2023-12-22 01:33:34,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:33:34,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:34,720 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:33:34,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Ended with exit code 0 [2023-12-22 01:33:34,920 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 [2023-12-22 01:33:34,921 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:34,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 9696777, now seen corresponding path program 2 times [2023-12-22 01:33:34,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:34,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508912530] [2023-12-22 01:33:34,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:33:34,922 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 [2023-12-22 01:33:34,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:34,923 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) [2023-12-22 01:33:34,924 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 [2023-12-22 01:33:35,004 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:33:35,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:33:35,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:33:35,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-22 01:33:37,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:33:37,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508912530] [2023-12-22 01:33:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508912530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:33:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:33:37,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:33:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923233050] [2023-12-22 01:33:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:33:37,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:33:37,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:37,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:33:37,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:37,766 INFO L87 Difference]: Start difference. First operand 68935 states and 81717 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2023-12-22 01:33:43,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:43,601 INFO L93 Difference]: Finished difference Result 95698 states and 114927 transitions. [2023-12-22 01:33:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:33:43,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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 217 [2023-12-22 01:33:43,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:43,719 INFO L225 Difference]: With dead ends: 95698 [2023-12-22 01:33:43,719 INFO L226 Difference]: Without dead ends: 86349 [2023-12-22 01:33:43,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:43,737 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 4676 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:43,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4676 Valid, 3536 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:33:43,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86349 states. [2023-12-22 01:33:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86349 to 77025. [2023-12-22 01:33:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77025 states, 77023 states have (on average 1.1821014502161693) internal successors, (91049), 77024 states have internal predecessors, (91049), 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) [2023-12-22 01:33:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77025 states to 77025 states and 91049 transitions. [2023-12-22 01:33:50,039 INFO L78 Accepts]: Start accepts. Automaton has 77025 states and 91049 transitions. Word has length 217 [2023-12-22 01:33:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:33:50,039 INFO L495 AbstractCegarLoop]: Abstraction has 77025 states and 91049 transitions. [2023-12-22 01:33:50,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 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) [2023-12-22 01:33:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 77025 states and 91049 transitions. [2023-12-22 01:33:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:33:50,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:33:50,061 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:33:50,066 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 [2023-12-22 01:33:50,261 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 [2023-12-22 01:33:50,263 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:33:50,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:33:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1282033435, now seen corresponding path program 2 times [2023-12-22 01:33:50,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:33:50,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922065139] [2023-12-22 01:33:50,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:33:50,264 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 [2023-12-22 01:33:50,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:33:50,267 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) [2023-12-22 01:33:50,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-22 01:33:50,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:33:50,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:33:50,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:33:50,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:33:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2023-12-22 01:33:52,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:33:52,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:33:52,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922065139] [2023-12-22 01:33:52,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922065139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:33:52,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:33:52,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:33:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969004479] [2023-12-22 01:33:52,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:33:52,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:33:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:33:52,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:33:52,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:52,878 INFO L87 Difference]: Start difference. First operand 77025 states and 91049 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 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) [2023-12-22 01:33:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:33:59,145 INFO L93 Difference]: Finished difference Result 98119 states and 117258 transitions. [2023-12-22 01:33:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:33:59,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 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 217 [2023-12-22 01:33:59,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:33:59,244 INFO L225 Difference]: With dead ends: 98119 [2023-12-22 01:33:59,245 INFO L226 Difference]: Without dead ends: 92322 [2023-12-22 01:33:59,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:33:59,258 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 3303 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 3550 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:33:59,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3303 Valid, 3550 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:33:59,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92322 states. [2023-12-22 01:34:06,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92322 to 82828. [2023-12-22 01:34:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82828 states, 82826 states have (on average 1.180571318185111) internal successors, (97782), 82827 states have internal predecessors, (97782), 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) [2023-12-22 01:34:06,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82828 states to 82828 states and 97782 transitions. [2023-12-22 01:34:06,207 INFO L78 Accepts]: Start accepts. Automaton has 82828 states and 97782 transitions. Word has length 217 [2023-12-22 01:34:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:34:06,207 INFO L495 AbstractCegarLoop]: Abstraction has 82828 states and 97782 transitions. [2023-12-22 01:34:06,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 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) [2023-12-22 01:34:06,208 INFO L276 IsEmpty]: Start isEmpty. Operand 82828 states and 97782 transitions. [2023-12-22 01:34:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-22 01:34:06,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:34:06,232 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:34:06,236 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 [2023-12-22 01:34:06,436 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 [2023-12-22 01:34:06,436 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:34:06,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:34:06,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1019699081, now seen corresponding path program 2 times [2023-12-22 01:34:06,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:34:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047028392] [2023-12-22 01:34:06,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 01:34:06,437 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 [2023-12-22 01:34:06,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:34:06,439 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) [2023-12-22 01:34:06,439 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 [2023-12-22 01:34:06,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 01:34:06,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 01:34:06,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 01:34:06,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:34:08,922 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-12-22 01:34:08,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:34:08,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:34:08,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047028392] [2023-12-22 01:34:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047028392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:34:08,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:34:08,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-22 01:34:08,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688630094] [2023-12-22 01:34:08,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:34:08,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 01:34:08,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:34:08,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 01:34:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:34:08,924 INFO L87 Difference]: Start difference. First operand 82828 states and 97782 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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) [2023-12-22 01:34:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:34:15,542 INFO L93 Difference]: Finished difference Result 103060 states and 122920 transitions. [2023-12-22 01:34:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 01:34:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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 217 [2023-12-22 01:34:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:34:15,653 INFO L225 Difference]: With dead ends: 103060 [2023-12-22 01:34:15,653 INFO L226 Difference]: Without dead ends: 97738 [2023-12-22 01:34:15,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-12-22 01:34:15,670 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 6244 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6244 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:34:15,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6244 Valid, 3467 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-22 01:34:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97738 states. [2023-12-22 01:34:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97738 to 88046. [2023-12-22 01:34:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88046 states, 88044 states have (on average 1.1793194311934942) internal successors, (103832), 88045 states have internal predecessors, (103832), 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) [2023-12-22 01:34:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88046 states to 88046 states and 103832 transitions. [2023-12-22 01:34:22,555 INFO L78 Accepts]: Start accepts. Automaton has 88046 states and 103832 transitions. Word has length 217 [2023-12-22 01:34:22,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:34:22,555 INFO L495 AbstractCegarLoop]: Abstraction has 88046 states and 103832 transitions. [2023-12-22 01:34:22,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 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) [2023-12-22 01:34:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 88046 states and 103832 transitions. [2023-12-22 01:34:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:34:22,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:34:22,583 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:34:22,587 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 (46)] Forceful destruction successful, exit code 0 [2023-12-22 01:34:22,784 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 [2023-12-22 01:34:22,784 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:34:22,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:34:22,784 INFO L85 PathProgramCache]: Analyzing trace with hash -496618593, now seen corresponding path program 1 times [2023-12-22 01:34:22,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:34:22,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930875023] [2023-12-22 01:34:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:34:22,785 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 [2023-12-22 01:34:22,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:34:22,788 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) [2023-12-22 01:34:22,789 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 [2023-12-22 01:34:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:34:22,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:34:22,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:34:25,640 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:34:25,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:34:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 38 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:34:26,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:34:26,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930875023] [2023-12-22 01:34:26,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930875023] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:34:26,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:34:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:34:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301260086] [2023-12-22 01:34:26,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:34:26,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:34:26,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:34:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:34:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:34:26,657 INFO L87 Difference]: Start difference. First operand 88046 states and 103832 transitions. Second operand has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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) [2023-12-22 01:34:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:34:57,634 INFO L93 Difference]: Finished difference Result 214357 states and 250283 transitions. [2023-12-22 01:34:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-22 01:34:57,634 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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 218 [2023-12-22 01:34:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:34:57,932 INFO L225 Difference]: With dead ends: 214357 [2023-12-22 01:34:57,932 INFO L226 Difference]: Without dead ends: 205049 [2023-12-22 01:34:57,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2186, Invalid=14844, Unknown=0, NotChecked=0, Total=17030 [2023-12-22 01:34:57,969 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 2685 mSDsluCounter, 32843 mSDsCounter, 0 mSdLazyCounter, 6786 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2685 SdHoareTripleChecker+Valid, 34621 SdHoareTripleChecker+Invalid, 6809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 6786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:34:57,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2685 Valid, 34621 Invalid, 6809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 6786 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-12-22 01:34:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205049 states. [2023-12-22 01:35:06,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205049 to 94529. [2023-12-22 01:35:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94529 states, 94527 states have (on average 1.176732573761994) internal successors, (111233), 94528 states have internal predecessors, (111233), 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) [2023-12-22 01:35:06,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94529 states to 94529 states and 111233 transitions. [2023-12-22 01:35:06,403 INFO L78 Accepts]: Start accepts. Automaton has 94529 states and 111233 transitions. Word has length 218 [2023-12-22 01:35:06,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:35:06,403 INFO L495 AbstractCegarLoop]: Abstraction has 94529 states and 111233 transitions. [2023-12-22 01:35:06,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.777777777777779) internal successors, (424), 36 states have internal predecessors, (424), 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) [2023-12-22 01:35:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 94529 states and 111233 transitions. [2023-12-22 01:35:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:35:06,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:35:06,432 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:35:06,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Ended with exit code 0 [2023-12-22 01:35:06,632 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 [2023-12-22 01:35:06,633 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:35:06,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:35:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1584273951, now seen corresponding path program 1 times [2023-12-22 01:35:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:35:06,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491527792] [2023-12-22 01:35:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:35:06,634 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 [2023-12-22 01:35:06,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:35:06,635 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) [2023-12-22 01:35:06,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-22 01:35:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:35:06,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:35:06,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:35:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:09,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:35:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 70 proven. 264 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:10,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:35:10,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491527792] [2023-12-22 01:35:10,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491527792] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:35:10,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:35:10,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:35:10,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692771918] [2023-12-22 01:35:10,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:35:10,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:35:10,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:35:10,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:35:10,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:35:10,586 INFO L87 Difference]: Start difference. First operand 94529 states and 111233 transitions. Second operand has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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) [2023-12-22 01:35:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:35:42,973 INFO L93 Difference]: Finished difference Result 141432 states and 166146 transitions. [2023-12-22 01:35:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 01:35:42,974 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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 218 [2023-12-22 01:35:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:35:43,129 INFO L225 Difference]: With dead ends: 141432 [2023-12-22 01:35:43,129 INFO L226 Difference]: Without dead ends: 122722 [2023-12-22 01:35:43,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4492 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 01:35:43,157 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 5777 mSDsluCounter, 41332 mSDsCounter, 0 mSdLazyCounter, 8342 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5777 SdHoareTripleChecker+Valid, 43131 SdHoareTripleChecker+Invalid, 8369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-22 01:35:43,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5777 Valid, 43131 Invalid, 8369 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 8342 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-22 01:35:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122722 states. [2023-12-22 01:35:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122722 to 100689. [2023-12-22 01:35:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100689 states, 100687 states have (on average 1.175871761001917) internal successors, (118395), 100688 states have internal predecessors, (118395), 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) [2023-12-22 01:35:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100689 states to 100689 states and 118395 transitions. [2023-12-22 01:35:51,804 INFO L78 Accepts]: Start accepts. Automaton has 100689 states and 118395 transitions. Word has length 218 [2023-12-22 01:35:51,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:35:51,804 INFO L495 AbstractCegarLoop]: Abstraction has 100689 states and 118395 transitions. [2023-12-22 01:35:51,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.5) internal successors, (414), 36 states have internal predecessors, (414), 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) [2023-12-22 01:35:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 100689 states and 118395 transitions. [2023-12-22 01:35:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:35:51,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:35:51,835 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:35:51,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2023-12-22 01:35:52,036 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 [2023-12-22 01:35:52,036 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:35:52,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:35:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash 195343043, now seen corresponding path program 1 times [2023-12-22 01:35:52,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:35:52,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894188538] [2023-12-22 01:35:52,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:35:52,037 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 [2023-12-22 01:35:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:35:52,038 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:35:52,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-22 01:35:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:35:52,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:35:52,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:35:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:54,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:35:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 86 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:35:55,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:35:55,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894188538] [2023-12-22 01:35:55,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894188538] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:35:55,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:35:55,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:35:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32919912] [2023-12-22 01:35:55,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:35:55,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:35:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:35:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:35:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:35:55,407 INFO L87 Difference]: Start difference. First operand 100689 states and 118395 transitions. Second operand has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 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) [2023-12-22 01:36:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:36:28,555 INFO L93 Difference]: Finished difference Result 152613 states and 178691 transitions. [2023-12-22 01:36:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 01:36:28,556 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 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 218 [2023-12-22 01:36:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:36:28,721 INFO L225 Difference]: With dead ends: 152613 [2023-12-22 01:36:28,721 INFO L226 Difference]: Without dead ends: 131990 [2023-12-22 01:36:28,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6254 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 01:36:28,758 INFO L413 NwaCegarLoop]: 1818 mSDtfsCounter, 4377 mSDsluCounter, 36689 mSDsCounter, 0 mSdLazyCounter, 7941 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4377 SdHoareTripleChecker+Valid, 38507 SdHoareTripleChecker+Invalid, 7971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 7941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:36:28,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4377 Valid, 38507 Invalid, 7971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 7941 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-22 01:36:28,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131990 states. [2023-12-22 01:36:38,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131990 to 105750. [2023-12-22 01:36:38,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105750 states, 105748 states have (on average 1.1747361652229829) internal successors, (124226), 105749 states have internal predecessors, (124226), 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) [2023-12-22 01:36:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105750 states to 105750 states and 124226 transitions. [2023-12-22 01:36:38,599 INFO L78 Accepts]: Start accepts. Automaton has 105750 states and 124226 transitions. Word has length 218 [2023-12-22 01:36:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:36:38,599 INFO L495 AbstractCegarLoop]: Abstraction has 105750 states and 124226 transitions. [2023-12-22 01:36:38,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.36111111111111) internal successors, (409), 36 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) [2023-12-22 01:36:38,599 INFO L276 IsEmpty]: Start isEmpty. Operand 105750 states and 124226 transitions. [2023-12-22 01:36:38,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 01:36:38,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:36:38,620 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:36:38,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2023-12-22 01:36:38,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:36:38,821 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:36:38,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:36:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1465392993, now seen corresponding path program 1 times [2023-12-22 01:36:38,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:36:38,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735868942] [2023-12-22 01:36:38,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:36:38,822 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 [2023-12-22 01:36:38,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:36:38,823 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:36:38,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-22 01:36:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:36:38,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:36:38,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:36:41,434 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:36:41,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:36:42,487 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 102 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:36:42,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:36:42,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735868942] [2023-12-22 01:36:42,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735868942] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:36:42,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:36:42,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:36:42,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075173128] [2023-12-22 01:36:42,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:36:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:36:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:36:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:36:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:36:42,490 INFO L87 Difference]: Start difference. First operand 105750 states and 124226 transitions. Second operand has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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) [2023-12-22 01:37:16,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:37:16,589 INFO L93 Difference]: Finished difference Result 163936 states and 191055 transitions. [2023-12-22 01:37:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 01:37:16,589 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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 218 [2023-12-22 01:37:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:37:16,751 INFO L225 Difference]: With dead ends: 163936 [2023-12-22 01:37:16,751 INFO L226 Difference]: Without dead ends: 141168 [2023-12-22 01:37:16,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7024 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 01:37:16,783 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 2734 mSDsluCounter, 36355 mSDsCounter, 0 mSdLazyCounter, 8008 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2734 SdHoareTripleChecker+Valid, 38154 SdHoareTripleChecker+Invalid, 8038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 8008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-12-22 01:37:16,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2734 Valid, 38154 Invalid, 8038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 8008 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2023-12-22 01:37:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141168 states. [2023-12-22 01:37:26,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141168 to 108753. [2023-12-22 01:37:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108753 states, 108751 states have (on average 1.1734604739266765) internal successors, (127615), 108752 states have internal predecessors, (127615), 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) [2023-12-22 01:37:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108753 states to 108753 states and 127615 transitions. [2023-12-22 01:37:26,956 INFO L78 Accepts]: Start accepts. Automaton has 108753 states and 127615 transitions. Word has length 218 [2023-12-22 01:37:26,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:37:26,957 INFO L495 AbstractCegarLoop]: Abstraction has 108753 states and 127615 transitions. [2023-12-22 01:37:26,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.222222222222221) internal successors, (404), 36 states have internal predecessors, (404), 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) [2023-12-22 01:37:26,957 INFO L276 IsEmpty]: Start isEmpty. Operand 108753 states and 127615 transitions. [2023-12-22 01:37:26,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-22 01:37:26,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:37:26,975 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:37:26,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-22 01:37:27,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:37:27,177 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:37:27,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:37:27,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1055738643, now seen corresponding path program 1 times [2023-12-22 01:37:27,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:37:27,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600685450] [2023-12-22 01:37:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:37:27,178 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 [2023-12-22 01:37:27,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:37:27,179 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:37:27,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2023-12-22 01:37:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:37:27,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 01:37:27,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:37:29,889 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:37:29,890 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 01:37:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:37:30,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:37:30,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600685450] [2023-12-22 01:37:30,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600685450] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 01:37:30,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 01:37:30,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 01:37:30,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259777294] [2023-12-22 01:37:30,967 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 01:37:30,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 01:37:30,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:37:30,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 01:37:30,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 01:37:30,969 INFO L87 Difference]: Start difference. First operand 108753 states and 127615 transitions. Second operand has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 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) [2023-12-22 01:38:07,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:38:07,892 INFO L93 Difference]: Finished difference Result 267556 states and 310814 transitions. [2023-12-22 01:38:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 01:38:07,893 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 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 219 [2023-12-22 01:38:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:38:08,200 INFO L225 Difference]: With dead ends: 267556 [2023-12-22 01:38:08,201 INFO L226 Difference]: Without dead ends: 246046 [2023-12-22 01:38:08,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 01:38:08,259 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 5716 mSDsluCounter, 33376 mSDsCounter, 0 mSdLazyCounter, 6138 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5716 SdHoareTripleChecker+Valid, 35119 SdHoareTripleChecker+Invalid, 6164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:38:08,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5716 Valid, 35119 Invalid, 6164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 6138 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-22 01:38:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246046 states. [2023-12-22 01:38:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246046 to 216316. [2023-12-22 01:38:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216316 states, 216314 states have (on average 1.1658422478434127) internal successors, (252188), 216315 states have internal predecessors, (252188), 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) [2023-12-22 01:38:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216316 states to 216316 states and 252188 transitions. [2023-12-22 01:38:28,629 INFO L78 Accepts]: Start accepts. Automaton has 216316 states and 252188 transitions. Word has length 219 [2023-12-22 01:38:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:38:28,629 INFO L495 AbstractCegarLoop]: Abstraction has 216316 states and 252188 transitions. [2023-12-22 01:38:28,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.944444444444445) internal successors, (430), 36 states have internal predecessors, (430), 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) [2023-12-22 01:38:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 216316 states and 252188 transitions. [2023-12-22 01:38:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-12-22 01:38:28,709 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:38:28,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:38:28,714 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 (51)] Ended with exit code 0 [2023-12-22 01:38:28,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:38:28,910 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:38:28,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:38:28,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1306383518, now seen corresponding path program 1 times [2023-12-22 01:38:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:38:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257677984] [2023-12-22 01:38:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:38:28,911 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 [2023-12-22 01:38:28,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:38:28,912 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:38:28,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2023-12-22 01:38:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:38:29,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 01:38:29,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:38:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:38:29,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:38:29,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:38:29,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257677984] [2023-12-22 01:38:29,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257677984] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:38:29,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:38:29,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:38:29,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962811476] [2023-12-22 01:38:29,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:38:29,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:38:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:38:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:38:29,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:38:29,246 INFO L87 Difference]: Start difference. First operand 216316 states and 252188 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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) [2023-12-22 01:39:26,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:39:26,108 INFO L93 Difference]: Finished difference Result 223077 states and 262245 transitions. [2023-12-22 01:39:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:39:26,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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 253 [2023-12-22 01:39:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:39:26,369 INFO L225 Difference]: With dead ends: 223077 [2023-12-22 01:39:26,369 INFO L226 Difference]: Without dead ends: 217818 [2023-12-22 01:39:26,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:39:26,401 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 688 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2023-12-22 01:39:26,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 730 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 38.3s Time] [2023-12-22 01:39:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217818 states. [2023-12-22 01:39:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217818 to 217818. [2023-12-22 01:39:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217818 states, 217816 states have (on average 1.1656535791677378) internal successors, (253898), 217817 states have internal predecessors, (253898), 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) [2023-12-22 01:39:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217818 states to 217818 states and 253898 transitions. [2023-12-22 01:39:47,377 INFO L78 Accepts]: Start accepts. Automaton has 217818 states and 253898 transitions. Word has length 253 [2023-12-22 01:39:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 01:39:47,377 INFO L495 AbstractCegarLoop]: Abstraction has 217818 states and 253898 transitions. [2023-12-22 01:39:47,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 2 states have internal predecessors, (253), 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) [2023-12-22 01:39:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 217818 states and 253898 transitions. [2023-12-22 01:39:47,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-22 01:39:47,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 01:39:47,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:39:47,668 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 (52)] Forceful destruction successful, exit code 0 [2023-12-22 01:39:47,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:39:47,862 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 01:39:47,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 01:39:47,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2060529060, now seen corresponding path program 1 times [2023-12-22 01:39:47,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 01:39:47,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028873495] [2023-12-22 01:39:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 01:39:47,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 01:39:47,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 01:39:47,864 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 01:39:47,865 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 (53)] Waiting until timeout for monitored process [2023-12-22 01:39:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 01:39:47,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 01:39:47,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 01:39:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 01:39:48,657 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 01:39:48,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 01:39:48,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028873495] [2023-12-22 01:39:48,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028873495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 01:39:48,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 01:39:48,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 01:39:48,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382357636] [2023-12-22 01:39:48,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 01:39:48,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 01:39:48,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 01:39:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 01:39:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:39:48,658 INFO L87 Difference]: Start difference. First operand 217818 states and 253898 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 2 states have internal predecessors, (254), 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) [2023-12-22 01:40:39,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 01:40:39,641 INFO L93 Difference]: Finished difference Result 223828 states and 261948 transitions. [2023-12-22 01:40:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 01:40:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 2 states have internal predecessors, (254), 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 254 [2023-12-22 01:40:39,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 01:40:39,912 INFO L225 Difference]: With dead ends: 223828 [2023-12-22 01:40:39,913 INFO L226 Difference]: Without dead ends: 217818 [2023-12-22 01:40:39,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 01:40:39,931 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 672 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2023-12-22 01:40:39,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 809 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 32.2s Time] [2023-12-22 01:40:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217818 states. Received shutdown request... [2023-12-22 01:40:57,523 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 (53)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 01:40:57,523 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 [2023-12-22 01:40:58,556 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 (53)] Forceful destruction successful, exit code 0 [2023-12-22 01:40:58,724 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-22 01:40:58,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-22 01:41:00,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217818 to 217818. [2023-12-22 01:41:00,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217818 states, 217816 states have (on average 1.1654607558673376) internal successors, (253856), 217817 states have internal predecessors, (253856), 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) [2023-12-22 01:41:00,341 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 01:41:00,342 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-22 01:41:00,343 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 01:41:00,345 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 01:41:00,346 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 01:41:00,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:41:00 BoogieIcfgContainer [2023-12-22 01:41:00,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 01:41:00,349 INFO L158 Benchmark]: Toolchain (without parser) took 837509.12ms. Allocated memory was 288.4MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 223.6MB in the beginning and 4.4GB in the end (delta: -4.1GB). Peak memory consumption was 4.8GB. Max. memory is 8.0GB. [2023-12-22 01:41:00,349 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 209.7MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 01:41:00,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1467.89ms. Allocated memory is still 288.4MB. Free memory was 223.4MB in the beginning and 186.4MB in the end (delta: 36.9MB). Peak memory consumption was 119.0MB. Max. memory is 8.0GB. [2023-12-22 01:41:00,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.97ms. Allocated memory is still 288.4MB. Free memory was 186.4MB in the beginning and 150.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 01:41:00,350 INFO L158 Benchmark]: Boogie Preprocessor took 342.96ms. Allocated memory was 288.4MB in the beginning and 428.9MB in the end (delta: 140.5MB). Free memory was 150.8MB in the beginning and 334.8MB in the end (delta: -184.0MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. [2023-12-22 01:41:00,350 INFO L158 Benchmark]: RCFGBuilder took 23773.60ms. Allocated memory was 428.9MB in the beginning and 683.7MB in the end (delta: 254.8MB). Free memory was 334.8MB in the beginning and 237.4MB in the end (delta: 97.4MB). Peak memory consumption was 360.6MB. Max. memory is 8.0GB. [2023-12-22 01:41:00,350 INFO L158 Benchmark]: TraceAbstraction took 811760.13ms. Allocated memory was 683.7MB in the beginning and 5.6GB in the end (delta: 4.9GB). Free memory was 236.9MB in the beginning and 4.4GB in the end (delta: -4.1GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2023-12-22 01:41:00,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 209.7MB. Free memory is still 160.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1467.89ms. Allocated memory is still 288.4MB. Free memory was 223.4MB in the beginning and 186.4MB in the end (delta: 36.9MB). Peak memory consumption was 119.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 158.97ms. Allocated memory is still 288.4MB. Free memory was 186.4MB in the beginning and 150.8MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 342.96ms. Allocated memory was 288.4MB in the beginning and 428.9MB in the end (delta: 140.5MB). Free memory was 150.8MB in the beginning and 334.8MB in the end (delta: -184.0MB). Peak memory consumption was 43.5MB. Max. memory is 8.0GB. * RCFGBuilder took 23773.60ms. Allocated memory was 428.9MB in the beginning and 683.7MB in the end (delta: 254.8MB). Free memory was 334.8MB in the beginning and 237.4MB in the end (delta: 97.4MB). Peak memory consumption was 360.6MB. Max. memory is 8.0GB. * TraceAbstraction took 811760.13ms. Allocated memory was 683.7MB in the beginning and 5.6GB in the end (delta: 4.9GB). Free memory was 236.9MB in the beginning and 4.4GB in the end (delta: -4.1GB). Peak memory consumption was 4.5GB. 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: 707]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 707). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 512]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 512). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 849 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 811.7s, OverallIterations: 52, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.8s, AutomataDifference: 556.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208114 SdHoareTripleChecker+Valid, 284.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208114 mSDsluCounter, 594831 SdHoareTripleChecker+Invalid, 244.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 516139 mSDsCounter, 2781 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88728 IncrementalHoareTripleChecker+Invalid, 91509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2781 mSolverCounterUnsat, 78692 mSDtfsCounter, 88728 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11605 GetRequests, 9937 SyntacticMatches, 0 SemanticMatches, 1668 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39688 ImplicationChecksByTransitivity, 103.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217818occurred in iteration=51, InterpolantAutomatonStates: 1273, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 171.2s AutomataMinimizationTime, 52 MinimizatonAttempts, 536974 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 68.1s InterpolantComputationTime, 6924 NumberOfCodeBlocks, 6244 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 10553 ConstructedInterpolants, 2916 QuantifiedInterpolants, 139264 SizeOfPredicates, 246 NumberOfNonLiveVariables, 14389 ConjunctsInSsa, 419 ConjunctsInUnsatCore, 76 InterpolantComputations, 28 PerfectInterpolantSequences, 3742/9052 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